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@@ -1561,3 +1561,7 @@ vllm/lib/python3.10/site-packages/triton/backends/nvidia/bin/ptxas filter=lfs di
 vllm/lib/python3.10/site-packages/triton/backends/amd/lib/ockl.bc filter=lfs diff=lfs merge=lfs -text
 vllm/lib/python3.10/site-packages/triton/backends/nvidia/bin/nvdisasm filter=lfs diff=lfs merge=lfs -text
 vllm/lib/python3.10/site-packages/torio/lib/libtorio_ffmpeg5.so filter=lfs diff=lfs merge=lfs -text
+vllm/lib/python3.10/site-packages/torio/lib/libtorio_ffmpeg4.so filter=lfs diff=lfs merge=lfs -text
+vllm/lib/python3.10/site-packages/torio/lib/libtorio_ffmpeg6.so filter=lfs diff=lfs merge=lfs -text
+vllm/lib/python3.10/site-packages/torio/lib/_torio_ffmpeg5.so filter=lfs diff=lfs merge=lfs -text
+vllm/lib/python3.10/site-packages/torio/lib/_torio_ffmpeg4.so filter=lfs diff=lfs merge=lfs -text

vllm/lib/python3.10/site-packages/_pytest/_code/__init__.py

@@ -0,0 +1,26 @@
+"""Python inspection/code generation API."""
+
+from __future__ import annotations
+
+from .code import Code
+from .code import ExceptionInfo
+from .code import filter_traceback
+from .code import Frame
+from .code import getfslineno
+from .code import Traceback
+from .code import TracebackEntry
+from .source import getrawcode
+from .source import Source
+
+
+__all__ = [
+    "Code",
+    "ExceptionInfo",
+    "filter_traceback",
+    "Frame",
+    "getfslineno",
+    "getrawcode",
+    "Traceback",
+    "TracebackEntry",
+    "Source",
+]

vllm/lib/python3.10/site-packages/_pytest/_code/code.py

@@ -0,0 +1,1409 @@
+# mypy: allow-untyped-defs
+from __future__ import annotations
+
+import ast
+import dataclasses
+import inspect
+from inspect import CO_VARARGS
+from inspect import CO_VARKEYWORDS
+from io import StringIO
+import os
+from pathlib import Path
+import re
+import sys
+import traceback
+from traceback import format_exception_only
+from types import CodeType
+from types import FrameType
+from types import TracebackType
+from typing import Any
+from typing import Callable
+from typing import ClassVar
+from typing import Final
+from typing import final
+from typing import Generic
+from typing import Iterable
+from typing import List
+from typing import Literal
+from typing import Mapping
+from typing import overload
+from typing import Pattern
+from typing import Sequence
+from typing import SupportsIndex
+from typing import Tuple
+from typing import Type
+from typing import TypeVar
+from typing import Union
+
+import pluggy
+
+import _pytest
+from _pytest._code.source import findsource
+from _pytest._code.source import getrawcode
+from _pytest._code.source import getstatementrange_ast
+from _pytest._code.source import Source
+from _pytest._io import TerminalWriter
+from _pytest._io.saferepr import safeformat
+from _pytest._io.saferepr import saferepr
+from _pytest.compat import get_real_func
+from _pytest.deprecated import check_ispytest
+from _pytest.pathlib import absolutepath
+from _pytest.pathlib import bestrelpath
+
+
+if sys.version_info < (3, 11):
+    from exceptiongroup import BaseExceptionGroup
+
+TracebackStyle = Literal["long", "short", "line", "no", "native", "value", "auto"]
+
+EXCEPTION_OR_MORE = Union[Type[BaseException], Tuple[Type[BaseException], ...]]
+
+
+class Code:
+    """Wrapper around Python code objects."""
+
+    __slots__ = ("raw",)
+
+    def __init__(self, obj: CodeType) -> None:
+        self.raw = obj
+
+    @classmethod
+    def from_function(cls, obj: object) -> Code:
+        return cls(getrawcode(obj))
+
+    def __eq__(self, other):
+        return self.raw == other.raw
+
+    # Ignore type because of https://github.com/python/mypy/issues/4266.
+    __hash__ = None  # type: ignore
+
+    @property
+    def firstlineno(self) -> int:
+        return self.raw.co_firstlineno - 1
+
+    @property
+    def name(self) -> str:
+        return self.raw.co_name
+
+    @property
+    def path(self) -> Path | str:
+        """Return a path object pointing to source code, or an ``str`` in
+        case of ``OSError`` / non-existing file."""
+        if not self.raw.co_filename:
+            return ""
+        try:
+            p = absolutepath(self.raw.co_filename)
+            # maybe don't try this checking
+            if not p.exists():
+                raise OSError("path check failed.")
+            return p
+        except OSError:
+            # XXX maybe try harder like the weird logic
+            # in the standard lib [linecache.updatecache] does?
+            return self.raw.co_filename
+
+    @property
+    def fullsource(self) -> Source | None:
+        """Return a _pytest._code.Source object for the full source file of the code."""
+        full, _ = findsource(self.raw)
+        return full
+
+    def source(self) -> Source:
+        """Return a _pytest._code.Source object for the code object's source only."""
+        # return source only for that part of code
+        return Source(self.raw)
+
+    def getargs(self, var: bool = False) -> tuple[str, ...]:
+        """Return a tuple with the argument names for the code object.
+
+        If 'var' is set True also return the names of the variable and
+        keyword arguments when present.
+        """
+        # Handy shortcut for getting args.
+        raw = self.raw
+        argcount = raw.co_argcount
+        if var:
+            argcount += raw.co_flags & CO_VARARGS
+            argcount += raw.co_flags & CO_VARKEYWORDS
+        return raw.co_varnames[:argcount]
+
+
+class Frame:
+    """Wrapper around a Python frame holding f_locals and f_globals
+    in which expressions can be evaluated."""
+
+    __slots__ = ("raw",)
+
+    def __init__(self, frame: FrameType) -> None:
+        self.raw = frame
+
+    @property
+    def lineno(self) -> int:
+        return self.raw.f_lineno - 1
+
+    @property
+    def f_globals(self) -> dict[str, Any]:
+        return self.raw.f_globals
+
+    @property
+    def f_locals(self) -> dict[str, Any]:
+        return self.raw.f_locals
+
+    @property
+    def code(self) -> Code:
+        return Code(self.raw.f_code)
+
+    @property
+    def statement(self) -> Source:
+        """Statement this frame is at."""
+        if self.code.fullsource is None:
+            return Source("")
+        return self.code.fullsource.getstatement(self.lineno)
+
+    def eval(self, code, **vars):
+        """Evaluate 'code' in the frame.
+
+        'vars' are optional additional local variables.
+
+        Returns the result of the evaluation.
+        """
+        f_locals = self.f_locals.copy()
+        f_locals.update(vars)
+        return eval(code, self.f_globals, f_locals)
+
+    def repr(self, object: object) -> str:
+        """Return a 'safe' (non-recursive, one-line) string repr for 'object'."""
+        return saferepr(object)
+
+    def getargs(self, var: bool = False):
+        """Return a list of tuples (name, value) for all arguments.
+
+        If 'var' is set True, also include the variable and keyword arguments
+        when present.
+        """
+        retval = []
+        for arg in self.code.getargs(var):
+            try:
+                retval.append((arg, self.f_locals[arg]))
+            except KeyError:
+                pass  # this can occur when using Psyco
+        return retval
+
+
+class TracebackEntry:
+    """A single entry in a Traceback."""
+
+    __slots__ = ("_rawentry", "_repr_style")
+
+    def __init__(
+        self,
+        rawentry: TracebackType,
+        repr_style: Literal["short", "long"] | None = None,
+    ) -> None:
+        self._rawentry: Final = rawentry
+        self._repr_style: Final = repr_style
+
+    def with_repr_style(
+        self, repr_style: Literal["short", "long"] | None
+    ) -> TracebackEntry:
+        return TracebackEntry(self._rawentry, repr_style)
+
+    @property
+    def lineno(self) -> int:
+        return self._rawentry.tb_lineno - 1
+
+    @property
+    def frame(self) -> Frame:
+        return Frame(self._rawentry.tb_frame)
+
+    @property
+    def relline(self) -> int:
+        return self.lineno - self.frame.code.firstlineno
+
+    def __repr__(self) -> str:
+        return "<TracebackEntry %s:%d>" % (self.frame.code.path, self.lineno + 1)
+
+    @property
+    def statement(self) -> Source:
+        """_pytest._code.Source object for the current statement."""
+        source = self.frame.code.fullsource
+        assert source is not None
+        return source.getstatement(self.lineno)
+
+    @property
+    def path(self) -> Path | str:
+        """Path to the source code."""
+        return self.frame.code.path
+
+    @property
+    def locals(self) -> dict[str, Any]:
+        """Locals of underlying frame."""
+        return self.frame.f_locals
+
+    def getfirstlinesource(self) -> int:
+        return self.frame.code.firstlineno
+
+    def getsource(
+        self, astcache: dict[str | Path, ast.AST] | None = None
+    ) -> Source | None:
+        """Return failing source code."""
+        # we use the passed in astcache to not reparse asttrees
+        # within exception info printing
+        source = self.frame.code.fullsource
+        if source is None:
+            return None
+        key = astnode = None
+        if astcache is not None:
+            key = self.frame.code.path
+            if key is not None:
+                astnode = astcache.get(key, None)
+        start = self.getfirstlinesource()
+        try:
+            astnode, _, end = getstatementrange_ast(
+                self.lineno, source, astnode=astnode
+            )
+        except SyntaxError:
+            end = self.lineno + 1
+        else:
+            if key is not None and astcache is not None:
+                astcache[key] = astnode
+        return source[start:end]
+
+    source = property(getsource)
+
+    def ishidden(self, excinfo: ExceptionInfo[BaseException] | None) -> bool:
+        """Return True if the current frame has a var __tracebackhide__
+        resolving to True.
+
+        If __tracebackhide__ is a callable, it gets called with the
+        ExceptionInfo instance and can decide whether to hide the traceback.
+
+        Mostly for internal use.
+        """
+        tbh: bool | Callable[[ExceptionInfo[BaseException] | None], bool] = False
+        for maybe_ns_dct in (self.frame.f_locals, self.frame.f_globals):
+            # in normal cases, f_locals and f_globals are dictionaries
+            # however via `exec(...)` / `eval(...)` they can be other types
+            # (even incorrect types!).
+            # as such, we suppress all exceptions while accessing __tracebackhide__
+            try:
+                tbh = maybe_ns_dct["__tracebackhide__"]
+            except Exception:
+                pass
+            else:
+                break
+        if tbh and callable(tbh):
+            return tbh(excinfo)
+        return tbh
+
+    def __str__(self) -> str:
+        name = self.frame.code.name
+        try:
+            line = str(self.statement).lstrip()
+        except KeyboardInterrupt:
+            raise
+        except BaseException:
+            line = "???"
+        # This output does not quite match Python's repr for traceback entries,
+        # but changing it to do so would break certain plugins.  See
+        # https://github.com/pytest-dev/pytest/pull/7535/ for details.
+        return "  File %r:%d in %s\n  %s\n" % (
+            str(self.path),
+            self.lineno + 1,
+            name,
+            line,
+        )
+
+    @property
+    def name(self) -> str:
+        """co_name of underlying code."""
+        return self.frame.code.raw.co_name
+
+
+class Traceback(List[TracebackEntry]):
+    """Traceback objects encapsulate and offer higher level access to Traceback entries."""
+
+    def __init__(
+        self,
+        tb: TracebackType | Iterable[TracebackEntry],
+    ) -> None:
+        """Initialize from given python traceback object and ExceptionInfo."""
+        if isinstance(tb, TracebackType):
+
+            def f(cur: TracebackType) -> Iterable[TracebackEntry]:
+                cur_: TracebackType | None = cur
+                while cur_ is not None:
+                    yield TracebackEntry(cur_)
+                    cur_ = cur_.tb_next
+
+            super().__init__(f(tb))
+        else:
+            super().__init__(tb)
+
+    def cut(
+        self,
+        path: os.PathLike[str] | str | None = None,
+        lineno: int | None = None,
+        firstlineno: int | None = None,
+        excludepath: os.PathLike[str] | None = None,
+    ) -> Traceback:
+        """Return a Traceback instance wrapping part of this Traceback.
+
+        By providing any combination of path, lineno and firstlineno, the
+        first frame to start the to-be-returned traceback is determined.
+
+        This allows cutting the first part of a Traceback instance e.g.
+        for formatting reasons (removing some uninteresting bits that deal
+        with handling of the exception/traceback).
+        """
+        path_ = None if path is None else os.fspath(path)
+        excludepath_ = None if excludepath is None else os.fspath(excludepath)
+        for x in self:
+            code = x.frame.code
+            codepath = code.path
+            if path is not None and str(codepath) != path_:
+                continue
+            if (
+                excludepath is not None
+                and isinstance(codepath, Path)
+                and excludepath_ in (str(p) for p in codepath.parents)  # type: ignore[operator]
+            ):
+                continue
+            if lineno is not None and x.lineno != lineno:
+                continue
+            if firstlineno is not None and x.frame.code.firstlineno != firstlineno:
+                continue
+            return Traceback(x._rawentry)
+        return self
+
+    @overload
+    def __getitem__(self, key: SupportsIndex) -> TracebackEntry: ...
+
+    @overload
+    def __getitem__(self, key: slice) -> Traceback: ...
+
+    def __getitem__(self, key: SupportsIndex | slice) -> TracebackEntry | Traceback:
+        if isinstance(key, slice):
+            return self.__class__(super().__getitem__(key))
+        else:
+            return super().__getitem__(key)
+
+    def filter(
+        self,
+        excinfo_or_fn: ExceptionInfo[BaseException] | Callable[[TracebackEntry], bool],
+        /,
+    ) -> Traceback:
+        """Return a Traceback instance with certain items removed.
+
+        If the filter is an `ExceptionInfo`, removes all the ``TracebackEntry``s
+        which are hidden (see ishidden() above).
+
+        Otherwise, the filter is a function that gets a single argument, a
+        ``TracebackEntry`` instance, and should return True when the item should
+        be added to the ``Traceback``, False when not.
+        """
+        if isinstance(excinfo_or_fn, ExceptionInfo):
+            fn = lambda x: not x.ishidden(excinfo_or_fn)  # noqa: E731
+        else:
+            fn = excinfo_or_fn
+        return Traceback(filter(fn, self))
+
+    def recursionindex(self) -> int | None:
+        """Return the index of the frame/TracebackEntry where recursion originates if
+        appropriate, None if no recursion occurred."""
+        cache: dict[tuple[Any, int, int], list[dict[str, Any]]] = {}
+        for i, entry in enumerate(self):
+            # id for the code.raw is needed to work around
+            # the strange metaprogramming in the decorator lib from pypi
+            # which generates code objects that have hash/value equality
+            # XXX needs a test
+            key = entry.frame.code.path, id(entry.frame.code.raw), entry.lineno
+            values = cache.setdefault(key, [])
+            # Since Python 3.13 f_locals is a proxy, freeze it.
+            loc = dict(entry.frame.f_locals)
+            if values:
+                for otherloc in values:
+                    if otherloc == loc:
+                        return i
+            values.append(loc)
+        return None
+
+
+E = TypeVar("E", bound=BaseException, covariant=True)
+
+
+@final
+@dataclasses.dataclass
+class ExceptionInfo(Generic[E]):
+    """Wraps sys.exc_info() objects and offers help for navigating the traceback."""
+
+    _assert_start_repr: ClassVar = "AssertionError('assert "
+
+    _excinfo: tuple[type[E], E, TracebackType] | None
+    _striptext: str
+    _traceback: Traceback | None
+
+    def __init__(
+        self,
+        excinfo: tuple[type[E], E, TracebackType] | None,
+        striptext: str = "",
+        traceback: Traceback | None = None,
+        *,
+        _ispytest: bool = False,
+    ) -> None:
+        check_ispytest(_ispytest)
+        self._excinfo = excinfo
+        self._striptext = striptext
+        self._traceback = traceback
+
+    @classmethod
+    def from_exception(
+        cls,
+        # Ignoring error: "Cannot use a covariant type variable as a parameter".
+        # This is OK to ignore because this class is (conceptually) readonly.
+        # See https://github.com/python/mypy/issues/7049.
+        exception: E,  # type: ignore[misc]
+        exprinfo: str | None = None,
+    ) -> ExceptionInfo[E]:
+        """Return an ExceptionInfo for an existing exception.
+
+        The exception must have a non-``None`` ``__traceback__`` attribute,
+        otherwise this function fails with an assertion error. This means that
+        the exception must have been raised, or added a traceback with the
+        :py:meth:`~BaseException.with_traceback()` method.
+
+        :param exprinfo:
+            A text string helping to determine if we should strip
+            ``AssertionError`` from the output. Defaults to the exception
+            message/``__str__()``.
+
+        .. versionadded:: 7.4
+        """
+        assert exception.__traceback__, (
+            "Exceptions passed to ExcInfo.from_exception(...)"
+            " must have a non-None __traceback__."
+        )
+        exc_info = (type(exception), exception, exception.__traceback__)
+        return cls.from_exc_info(exc_info, exprinfo)
+
+    @classmethod
+    def from_exc_info(
+        cls,
+        exc_info: tuple[type[E], E, TracebackType],
+        exprinfo: str | None = None,
+    ) -> ExceptionInfo[E]:
+        """Like :func:`from_exception`, but using old-style exc_info tuple."""
+        _striptext = ""
+        if exprinfo is None and isinstance(exc_info[1], AssertionError):
+            exprinfo = getattr(exc_info[1], "msg", None)
+            if exprinfo is None:
+                exprinfo = saferepr(exc_info[1])
+            if exprinfo and exprinfo.startswith(cls._assert_start_repr):
+                _striptext = "AssertionError: "
+
+        return cls(exc_info, _striptext, _ispytest=True)
+
+    @classmethod
+    def from_current(cls, exprinfo: str | None = None) -> ExceptionInfo[BaseException]:
+        """Return an ExceptionInfo matching the current traceback.
+
+        .. warning::
+
+            Experimental API
+
+        :param exprinfo:
+            A text string helping to determine if we should strip
+            ``AssertionError`` from the output. Defaults to the exception
+            message/``__str__()``.
+        """
+        tup = sys.exc_info()
+        assert tup[0] is not None, "no current exception"
+        assert tup[1] is not None, "no current exception"
+        assert tup[2] is not None, "no current exception"
+        exc_info = (tup[0], tup[1], tup[2])
+        return ExceptionInfo.from_exc_info(exc_info, exprinfo)
+
+    @classmethod
+    def for_later(cls) -> ExceptionInfo[E]:
+        """Return an unfilled ExceptionInfo."""
+        return cls(None, _ispytest=True)
+
+    def fill_unfilled(self, exc_info: tuple[type[E], E, TracebackType]) -> None:
+        """Fill an unfilled ExceptionInfo created with ``for_later()``."""
+        assert self._excinfo is None, "ExceptionInfo was already filled"
+        self._excinfo = exc_info
+
+    @property
+    def type(self) -> type[E]:
+        """The exception class."""
+        assert (
+            self._excinfo is not None
+        ), ".type can only be used after the context manager exits"
+        return self._excinfo[0]
+
+    @property
+    def value(self) -> E:
+        """The exception value."""
+        assert (
+            self._excinfo is not None
+        ), ".value can only be used after the context manager exits"
+        return self._excinfo[1]
+
+    @property
+    def tb(self) -> TracebackType:
+        """The exception raw traceback."""
+        assert (
+            self._excinfo is not None
+        ), ".tb can only be used after the context manager exits"
+        return self._excinfo[2]
+
+    @property
+    def typename(self) -> str:
+        """The type name of the exception."""
+        assert (
+            self._excinfo is not None
+        ), ".typename can only be used after the context manager exits"
+        return self.type.__name__
+
+    @property
+    def traceback(self) -> Traceback:
+        """The traceback."""
+        if self._traceback is None:
+            self._traceback = Traceback(self.tb)
+        return self._traceback
+
+    @traceback.setter
+    def traceback(self, value: Traceback) -> None:
+        self._traceback = value
+
+    def __repr__(self) -> str:
+        if self._excinfo is None:
+            return "<ExceptionInfo for raises contextmanager>"
+        return f"<{self.__class__.__name__} {saferepr(self._excinfo[1])} tblen={len(self.traceback)}>"
+
+    def exconly(self, tryshort: bool = False) -> str:
+        """Return the exception as a string.
+
+        When 'tryshort' resolves to True, and the exception is an
+        AssertionError, only the actual exception part of the exception
+        representation is returned (so 'AssertionError: ' is removed from
+        the beginning).
+        """
+        lines = format_exception_only(self.type, self.value)
+        text = "".join(lines)
+        text = text.rstrip()
+        if tryshort:
+            if text.startswith(self._striptext):
+                text = text[len(self._striptext) :]
+        return text
+
+    def errisinstance(self, exc: EXCEPTION_OR_MORE) -> bool:
+        """Return True if the exception is an instance of exc.
+
+        Consider using ``isinstance(excinfo.value, exc)`` instead.
+        """
+        return isinstance(self.value, exc)
+
+    def _getreprcrash(self) -> ReprFileLocation | None:
+        # Find last non-hidden traceback entry that led to the exception of the
+        # traceback, or None if all hidden.
+        for i in range(-1, -len(self.traceback) - 1, -1):
+            entry = self.traceback[i]
+            if not entry.ishidden(self):
+                path, lineno = entry.frame.code.raw.co_filename, entry.lineno
+                exconly = self.exconly(tryshort=True)
+                return ReprFileLocation(path, lineno + 1, exconly)
+        return None
+
+    def getrepr(
+        self,
+        showlocals: bool = False,
+        style: TracebackStyle = "long",
+        abspath: bool = False,
+        tbfilter: bool
+        | Callable[[ExceptionInfo[BaseException]], _pytest._code.code.Traceback] = True,
+        funcargs: bool = False,
+        truncate_locals: bool = True,
+        truncate_args: bool = True,
+        chain: bool = True,
+    ) -> ReprExceptionInfo | ExceptionChainRepr:
+        """Return str()able representation of this exception info.
+
+        :param bool showlocals:
+            Show locals per traceback entry.
+            Ignored if ``style=="native"``.
+
+        :param str style:
+            long|short|line|no|native|value traceback style.
+
+        :param bool abspath:
+            If paths should be changed to absolute or left unchanged.
+
+        :param tbfilter:
+            A filter for traceback entries.
+
+            * If false, don't hide any entries.
+            * If true, hide internal entries and entries that contain a local
+              variable ``__tracebackhide__ = True``.
+            * If a callable, delegates the filtering to the callable.
+
+            Ignored if ``style`` is ``"native"``.
+
+        :param bool funcargs:
+            Show fixtures ("funcargs" for legacy purposes) per traceback entry.
+
+        :param bool truncate_locals:
+            With ``showlocals==True``, make sure locals can be safely represented as strings.
+
+        :param bool truncate_args:
+            With ``showargs==True``, make sure args can be safely represented as strings.
+
+        :param bool chain:
+            If chained exceptions in Python 3 should be shown.
+
+        .. versionchanged:: 3.9
+
+            Added the ``chain`` parameter.
+        """
+        if style == "native":
+            return ReprExceptionInfo(
+                reprtraceback=ReprTracebackNative(
+                    traceback.format_exception(
+                        self.type,
+                        self.value,
+                        self.traceback[0]._rawentry if self.traceback else None,
+                    )
+                ),
+                reprcrash=self._getreprcrash(),
+            )
+
+        fmt = FormattedExcinfo(
+            showlocals=showlocals,
+            style=style,
+            abspath=abspath,
+            tbfilter=tbfilter,
+            funcargs=funcargs,
+            truncate_locals=truncate_locals,
+            truncate_args=truncate_args,
+            chain=chain,
+        )
+        return fmt.repr_excinfo(self)
+
+    def _stringify_exception(self, exc: BaseException) -> str:
+        try:
+            notes = getattr(exc, "__notes__", [])
+        except KeyError:
+            # Workaround for https://github.com/python/cpython/issues/98778 on
+            # Python <= 3.9, and some 3.10 and 3.11 patch versions.
+            HTTPError = getattr(sys.modules.get("urllib.error", None), "HTTPError", ())
+            if sys.version_info < (3, 12) and isinstance(exc, HTTPError):
+                notes = []
+            else:
+                raise
+
+        return "\n".join(
+            [
+                str(exc),
+                *notes,
+            ]
+        )
+
+    def match(self, regexp: str | Pattern[str]) -> Literal[True]:
+        """Check whether the regular expression `regexp` matches the string
+        representation of the exception using :func:`python:re.search`.
+
+        If it matches `True` is returned, otherwise an `AssertionError` is raised.
+        """
+        __tracebackhide__ = True
+        value = self._stringify_exception(self.value)
+        msg = f"Regex pattern did not match.\n Regex: {regexp!r}\n Input: {value!r}"
+        if regexp == value:
+            msg += "\n Did you mean to `re.escape()` the regex?"
+        assert re.search(regexp, value), msg
+        # Return True to allow for "assert excinfo.match()".
+        return True
+
+    def _group_contains(
+        self,
+        exc_group: BaseExceptionGroup[BaseException],
+        expected_exception: EXCEPTION_OR_MORE,
+        match: str | Pattern[str] | None,
+        target_depth: int | None = None,
+        current_depth: int = 1,
+    ) -> bool:
+        """Return `True` if a `BaseExceptionGroup` contains a matching exception."""
+        if (target_depth is not None) and (current_depth > target_depth):
+            # already descended past the target depth
+            return False
+        for exc in exc_group.exceptions:
+            if isinstance(exc, BaseExceptionGroup):
+                if self._group_contains(
+                    exc, expected_exception, match, target_depth, current_depth + 1
+                ):
+                    return True
+            if (target_depth is not None) and (current_depth != target_depth):
+                # not at the target depth, no match
+                continue
+            if not isinstance(exc, expected_exception):
+                continue
+            if match is not None:
+                value = self._stringify_exception(exc)
+                if not re.search(match, value):
+                    continue
+            return True
+        return False
+
+    def group_contains(
+        self,
+        expected_exception: EXCEPTION_OR_MORE,
+        *,
+        match: str | Pattern[str] | None = None,
+        depth: int | None = None,
+    ) -> bool:
+        """Check whether a captured exception group contains a matching exception.
+
+        :param Type[BaseException] | Tuple[Type[BaseException]] expected_exception:
+            The expected exception type, or a tuple if one of multiple possible
+            exception types are expected.
+
+        :param str | Pattern[str] | None match:
+            If specified, a string containing a regular expression,
+            or a regular expression object, that is tested against the string
+            representation of the exception and its `PEP-678 <https://peps.python.org/pep-0678/>` `__notes__`
+            using :func:`re.search`.
+
+            To match a literal string that may contain :ref:`special characters
+            <re-syntax>`, the pattern can first be escaped with :func:`re.escape`.
+
+        :param Optional[int] depth:
+            If `None`, will search for a matching exception at any nesting depth.
+            If >= 1, will only match an exception if it's at the specified depth (depth = 1 being
+            the exceptions contained within the topmost exception group).
+
+        .. versionadded:: 8.0
+        """
+        msg = "Captured exception is not an instance of `BaseExceptionGroup`"
+        assert isinstance(self.value, BaseExceptionGroup), msg
+        msg = "`depth` must be >= 1 if specified"
+        assert (depth is None) or (depth >= 1), msg
+        return self._group_contains(self.value, expected_exception, match, depth)
+
+
+@dataclasses.dataclass
+class FormattedExcinfo:
+    """Presenting information about failing Functions and Generators."""
+
+    # for traceback entries
+    flow_marker: ClassVar = ">"
+    fail_marker: ClassVar = "E"
+
+    showlocals: bool = False
+    style: TracebackStyle = "long"
+    abspath: bool = True
+    tbfilter: bool | Callable[[ExceptionInfo[BaseException]], Traceback] = True
+    funcargs: bool = False
+    truncate_locals: bool = True
+    truncate_args: bool = True
+    chain: bool = True
+    astcache: dict[str | Path, ast.AST] = dataclasses.field(
+        default_factory=dict, init=False, repr=False
+    )
+
+    def _getindent(self, source: Source) -> int:
+        # Figure out indent for the given source.
+        try:
+            s = str(source.getstatement(len(source) - 1))
+        except KeyboardInterrupt:
+            raise
+        except BaseException:
+            try:
+                s = str(source[-1])
+            except KeyboardInterrupt:
+                raise
+            except BaseException:
+                return 0
+        return 4 + (len(s) - len(s.lstrip()))
+
+    def _getentrysource(self, entry: TracebackEntry) -> Source | None:
+        source = entry.getsource(self.astcache)
+        if source is not None:
+            source = source.deindent()
+        return source
+
+    def repr_args(self, entry: TracebackEntry) -> ReprFuncArgs | None:
+        if self.funcargs:
+            args = []
+            for argname, argvalue in entry.frame.getargs(var=True):
+                if self.truncate_args:
+                    str_repr = saferepr(argvalue)
+                else:
+                    str_repr = saferepr(argvalue, maxsize=None)
+                args.append((argname, str_repr))
+            return ReprFuncArgs(args)
+        return None
+
+    def get_source(
+        self,
+        source: Source | None,
+        line_index: int = -1,
+        excinfo: ExceptionInfo[BaseException] | None = None,
+        short: bool = False,
+    ) -> list[str]:
+        """Return formatted and marked up source lines."""
+        lines = []
+        if source is not None and line_index < 0:
+            line_index += len(source)
+        if source is None or line_index >= len(source.lines) or line_index < 0:
+            # `line_index` could still be outside `range(len(source.lines))` if
+            # we're processing AST with pathological position attributes.
+            source = Source("???")
+            line_index = 0
+        space_prefix = "    "
+        if short:
+            lines.append(space_prefix + source.lines[line_index].strip())
+        else:
+            for line in source.lines[:line_index]:
+                lines.append(space_prefix + line)
+            lines.append(self.flow_marker + "   " + source.lines[line_index])
+            for line in source.lines[line_index + 1 :]:
+                lines.append(space_prefix + line)
+        if excinfo is not None:
+            indent = 4 if short else self._getindent(source)
+            lines.extend(self.get_exconly(excinfo, indent=indent, markall=True))
+        return lines
+
+    def get_exconly(
+        self,
+        excinfo: ExceptionInfo[BaseException],
+        indent: int = 4,
+        markall: bool = False,
+    ) -> list[str]:
+        lines = []
+        indentstr = " " * indent
+        # Get the real exception information out.
+        exlines = excinfo.exconly(tryshort=True).split("\n")
+        failindent = self.fail_marker + indentstr[1:]
+        for line in exlines:
+            lines.append(failindent + line)
+            if not markall:
+                failindent = indentstr
+        return lines
+
+    def repr_locals(self, locals: Mapping[str, object]) -> ReprLocals | None:
+        if self.showlocals:
+            lines = []
+            keys = [loc for loc in locals if loc[0] != "@"]
+            keys.sort()
+            for name in keys:
+                value = locals[name]
+                if name == "__builtins__":
+                    lines.append("__builtins__ = <builtins>")
+                else:
+                    # This formatting could all be handled by the
+                    # _repr() function, which is only reprlib.Repr in
+                    # disguise, so is very configurable.
+                    if self.truncate_locals:
+                        str_repr = saferepr(value)
+                    else:
+                        str_repr = safeformat(value)
+                    # if len(str_repr) < 70 or not isinstance(value, (list, tuple, dict)):
+                    lines.append(f"{name:<10} = {str_repr}")
+                    # else:
+                    #    self._line("%-10s =\\" % (name,))
+                    #    # XXX
+                    #    pprint.pprint(value, stream=self.excinfowriter)
+            return ReprLocals(lines)
+        return None
+
+    def repr_traceback_entry(
+        self,
+        entry: TracebackEntry | None,
+        excinfo: ExceptionInfo[BaseException] | None = None,
+    ) -> ReprEntry:
+        lines: list[str] = []
+        style = (
+            entry._repr_style
+            if entry is not None and entry._repr_style is not None
+            else self.style
+        )
+        if style in ("short", "long") and entry is not None:
+            source = self._getentrysource(entry)
+            if source is None:
+                source = Source("???")
+                line_index = 0
+            else:
+                line_index = entry.lineno - entry.getfirstlinesource()
+            short = style == "short"
+            reprargs = self.repr_args(entry) if not short else None
+            s = self.get_source(source, line_index, excinfo, short=short)
+            lines.extend(s)
+            if short:
+                message = f"in {entry.name}"
+            else:
+                message = excinfo and excinfo.typename or ""
+            entry_path = entry.path
+            path = self._makepath(entry_path)
+            reprfileloc = ReprFileLocation(path, entry.lineno + 1, message)
+            localsrepr = self.repr_locals(entry.locals)
+            return ReprEntry(lines, reprargs, localsrepr, reprfileloc, style)
+        elif style == "value":
+            if excinfo:
+                lines.extend(str(excinfo.value).split("\n"))
+            return ReprEntry(lines, None, None, None, style)
+        else:
+            if excinfo:
+                lines.extend(self.get_exconly(excinfo, indent=4))
+            return ReprEntry(lines, None, None, None, style)
+
+    def _makepath(self, path: Path | str) -> str:
+        if not self.abspath and isinstance(path, Path):
+            try:
+                np = bestrelpath(Path.cwd(), path)
+            except OSError:
+                return str(path)
+            if len(np) < len(str(path)):
+                return np
+        return str(path)
+
+    def repr_traceback(self, excinfo: ExceptionInfo[BaseException]) -> ReprTraceback:
+        traceback = excinfo.traceback
+        if callable(self.tbfilter):
+            traceback = self.tbfilter(excinfo)
+        elif self.tbfilter:
+            traceback = traceback.filter(excinfo)
+
+        if isinstance(excinfo.value, RecursionError):
+            traceback, extraline = self._truncate_recursive_traceback(traceback)
+        else:
+            extraline = None
+
+        if not traceback:
+            if extraline is None:
+                extraline = "All traceback entries are hidden. Pass `--full-trace` to see hidden and internal frames."
+            entries = [self.repr_traceback_entry(None, excinfo)]
+            return ReprTraceback(entries, extraline, style=self.style)
+
+        last = traceback[-1]
+        if self.style == "value":
+            entries = [self.repr_traceback_entry(last, excinfo)]
+            return ReprTraceback(entries, None, style=self.style)
+
+        entries = [
+            self.repr_traceback_entry(entry, excinfo if last == entry else None)
+            for entry in traceback
+        ]
+        return ReprTraceback(entries, extraline, style=self.style)
+
+    def _truncate_recursive_traceback(
+        self, traceback: Traceback
+    ) -> tuple[Traceback, str | None]:
+        """Truncate the given recursive traceback trying to find the starting
+        point of the recursion.
+
+        The detection is done by going through each traceback entry and
+        finding the point in which the locals of the frame are equal to the
+        locals of a previous frame (see ``recursionindex()``).
+
+        Handle the situation where the recursion process might raise an
+        exception (for example comparing numpy arrays using equality raises a
+        TypeError), in which case we do our best to warn the user of the
+        error and show a limited traceback.
+        """
+        try:
+            recursionindex = traceback.recursionindex()
+        except Exception as e:
+            max_frames = 10
+            extraline: str | None = (
+                "!!! Recursion error detected, but an error occurred locating the origin of recursion.\n"
+                "  The following exception happened when comparing locals in the stack frame:\n"
+                f"    {type(e).__name__}: {e!s}\n"
+                f"  Displaying first and last {max_frames} stack frames out of {len(traceback)}."
+            )
+            # Type ignored because adding two instances of a List subtype
+            # currently incorrectly has type List instead of the subtype.
+            traceback = traceback[:max_frames] + traceback[-max_frames:]  # type: ignore
+        else:
+            if recursionindex is not None:
+                extraline = "!!! Recursion detected (same locals & position)"
+                traceback = traceback[: recursionindex + 1]
+            else:
+                extraline = None
+
+        return traceback, extraline
+
+    def repr_excinfo(self, excinfo: ExceptionInfo[BaseException]) -> ExceptionChainRepr:
+        repr_chain: list[tuple[ReprTraceback, ReprFileLocation | None, str | None]] = []
+        e: BaseException | None = excinfo.value
+        excinfo_: ExceptionInfo[BaseException] | None = excinfo
+        descr = None
+        seen: set[int] = set()
+        while e is not None and id(e) not in seen:
+            seen.add(id(e))
+
+            if excinfo_:
+                # Fall back to native traceback as a temporary workaround until
+                # full support for exception groups added to ExceptionInfo.
+                # See https://github.com/pytest-dev/pytest/issues/9159
+                if isinstance(e, BaseExceptionGroup):
+                    reprtraceback: ReprTracebackNative | ReprTraceback = (
+                        ReprTracebackNative(
+                            traceback.format_exception(
+                                type(excinfo_.value),
+                                excinfo_.value,
+                                excinfo_.traceback[0]._rawentry,
+                            )
+                        )
+                    )
+                else:
+                    reprtraceback = self.repr_traceback(excinfo_)
+                reprcrash = excinfo_._getreprcrash()
+            else:
+                # Fallback to native repr if the exception doesn't have a traceback:
+                # ExceptionInfo objects require a full traceback to work.
+                reprtraceback = ReprTracebackNative(
+                    traceback.format_exception(type(e), e, None)
+                )
+                reprcrash = None
+            repr_chain += [(reprtraceback, reprcrash, descr)]
+
+            if e.__cause__ is not None and self.chain:
+                e = e.__cause__
+                excinfo_ = ExceptionInfo.from_exception(e) if e.__traceback__ else None
+                descr = "The above exception was the direct cause of the following exception:"
+            elif (
+                e.__context__ is not None and not e.__suppress_context__ and self.chain
+            ):
+                e = e.__context__
+                excinfo_ = ExceptionInfo.from_exception(e) if e.__traceback__ else None
+                descr = "During handling of the above exception, another exception occurred:"
+            else:
+                e = None
+        repr_chain.reverse()
+        return ExceptionChainRepr(repr_chain)
+
+
+@dataclasses.dataclass(eq=False)
+class TerminalRepr:
+    def __str__(self) -> str:
+        # FYI this is called from pytest-xdist's serialization of exception
+        # information.
+        io = StringIO()
+        tw = TerminalWriter(file=io)
+        self.toterminal(tw)
+        return io.getvalue().strip()
+
+    def __repr__(self) -> str:
+        return f"<{self.__class__} instance at {id(self):0x}>"
+
+    def toterminal(self, tw: TerminalWriter) -> None:
+        raise NotImplementedError()
+
+
+# This class is abstract -- only subclasses are instantiated.
+@dataclasses.dataclass(eq=False)
+class ExceptionRepr(TerminalRepr):
+    # Provided by subclasses.
+    reprtraceback: ReprTraceback
+    reprcrash: ReprFileLocation | None
+    sections: list[tuple[str, str, str]] = dataclasses.field(
+        init=False, default_factory=list
+    )
+
+    def addsection(self, name: str, content: str, sep: str = "-") -> None:
+        self.sections.append((name, content, sep))
+
+    def toterminal(self, tw: TerminalWriter) -> None:
+        for name, content, sep in self.sections:
+            tw.sep(sep, name)
+            tw.line(content)
+
+
+@dataclasses.dataclass(eq=False)
+class ExceptionChainRepr(ExceptionRepr):
+    chain: Sequence[tuple[ReprTraceback, ReprFileLocation | None, str | None]]
+
+    def __init__(
+        self,
+        chain: Sequence[tuple[ReprTraceback, ReprFileLocation | None, str | None]],
+    ) -> None:
+        # reprcrash and reprtraceback of the outermost (the newest) exception
+        # in the chain.
+        super().__init__(
+            reprtraceback=chain[-1][0],
+            reprcrash=chain[-1][1],
+        )
+        self.chain = chain
+
+    def toterminal(self, tw: TerminalWriter) -> None:
+        for element in self.chain:
+            element[0].toterminal(tw)
+            if element[2] is not None:
+                tw.line("")
+                tw.line(element[2], yellow=True)
+        super().toterminal(tw)
+
+
+@dataclasses.dataclass(eq=False)
+class ReprExceptionInfo(ExceptionRepr):
+    reprtraceback: ReprTraceback
+    reprcrash: ReprFileLocation | None
+
+    def toterminal(self, tw: TerminalWriter) -> None:
+        self.reprtraceback.toterminal(tw)
+        super().toterminal(tw)
+
+
+@dataclasses.dataclass(eq=False)
+class ReprTraceback(TerminalRepr):
+    reprentries: Sequence[ReprEntry | ReprEntryNative]
+    extraline: str | None
+    style: TracebackStyle
+
+    entrysep: ClassVar = "_ "
+
+    def toterminal(self, tw: TerminalWriter) -> None:
+        # The entries might have different styles.
+        for i, entry in enumerate(self.reprentries):
+            if entry.style == "long":
+                tw.line("")
+            entry.toterminal(tw)
+            if i < len(self.reprentries) - 1:
+                next_entry = self.reprentries[i + 1]
+                if (
+                    entry.style == "long"
+                    or entry.style == "short"
+                    and next_entry.style == "long"
+                ):
+                    tw.sep(self.entrysep)
+
+        if self.extraline:
+            tw.line(self.extraline)
+
+
+class ReprTracebackNative(ReprTraceback):
+    def __init__(self, tblines: Sequence[str]) -> None:
+        self.reprentries = [ReprEntryNative(tblines)]
+        self.extraline = None
+        self.style = "native"
+
+
+@dataclasses.dataclass(eq=False)
+class ReprEntryNative(TerminalRepr):
+    lines: Sequence[str]
+
+    style: ClassVar[TracebackStyle] = "native"
+
+    def toterminal(self, tw: TerminalWriter) -> None:
+        tw.write("".join(self.lines))
+
+
+@dataclasses.dataclass(eq=False)
+class ReprEntry(TerminalRepr):
+    lines: Sequence[str]
+    reprfuncargs: ReprFuncArgs | None
+    reprlocals: ReprLocals | None
+    reprfileloc: ReprFileLocation | None
+    style: TracebackStyle
+
+    def _write_entry_lines(self, tw: TerminalWriter) -> None:
+        """Write the source code portions of a list of traceback entries with syntax highlighting.
+
+        Usually entries are lines like these:
+
+            "     x = 1"
+            ">    assert x == 2"
+            "E    assert 1 == 2"
+
+        This function takes care of rendering the "source" portions of it (the lines without
+        the "E" prefix) using syntax highlighting, taking care to not highlighting the ">"
+        character, as doing so might break line continuations.
+        """
+        if not self.lines:
+            return
+
+        if self.style == "value":
+            # Using tw.write instead of tw.line for testing purposes due to TWMock implementation;
+            # lines written with TWMock.line and TWMock._write_source cannot be distinguished
+            # from each other, whereas lines written with TWMock.write are marked with TWMock.WRITE
+            for line in self.lines:
+                tw.write(line)
+                tw.write("\n")
+            return
+
+        # separate indents and source lines that are not failures: we want to
+        # highlight the code but not the indentation, which may contain markers
+        # such as ">   assert 0"
+        fail_marker = f"{FormattedExcinfo.fail_marker}   "
+        indent_size = len(fail_marker)
+        indents: list[str] = []
+        source_lines: list[str] = []
+        failure_lines: list[str] = []
+        for index, line in enumerate(self.lines):
+            is_failure_line = line.startswith(fail_marker)
+            if is_failure_line:
+                # from this point on all lines are considered part of the failure
+                failure_lines.extend(self.lines[index:])
+                break
+            else:
+                indents.append(line[:indent_size])
+                source_lines.append(line[indent_size:])
+
+        tw._write_source(source_lines, indents)
+
+        # failure lines are always completely red and bold
+        for line in failure_lines:
+            tw.line(line, bold=True, red=True)
+
+    def toterminal(self, tw: TerminalWriter) -> None:
+        if self.style == "short":
+            if self.reprfileloc:
+                self.reprfileloc.toterminal(tw)
+            self._write_entry_lines(tw)
+            if self.reprlocals:
+                self.reprlocals.toterminal(tw, indent=" " * 8)
+            return
+
+        if self.reprfuncargs:
+            self.reprfuncargs.toterminal(tw)
+
+        self._write_entry_lines(tw)
+
+        if self.reprlocals:
+            tw.line("")
+            self.reprlocals.toterminal(tw)
+        if self.reprfileloc:
+            if self.lines:
+                tw.line("")
+            self.reprfileloc.toterminal(tw)
+
+    def __str__(self) -> str:
+        return "{}\n{}\n{}".format(
+            "\n".join(self.lines), self.reprlocals, self.reprfileloc
+        )
+
+
+@dataclasses.dataclass(eq=False)
+class ReprFileLocation(TerminalRepr):
+    path: str
+    lineno: int
+    message: str
+
+    def __post_init__(self) -> None:
+        self.path = str(self.path)
+
+    def toterminal(self, tw: TerminalWriter) -> None:
+        # Filename and lineno output for each entry, using an output format
+        # that most editors understand.
+        msg = self.message
+        i = msg.find("\n")
+        if i != -1:
+            msg = msg[:i]
+        tw.write(self.path, bold=True, red=True)
+        tw.line(f":{self.lineno}: {msg}")
+
+
+@dataclasses.dataclass(eq=False)
+class ReprLocals(TerminalRepr):
+    lines: Sequence[str]
+
+    def toterminal(self, tw: TerminalWriter, indent="") -> None:
+        for line in self.lines:
+            tw.line(indent + line)
+
+
+@dataclasses.dataclass(eq=False)
+class ReprFuncArgs(TerminalRepr):
+    args: Sequence[tuple[str, object]]
+
+    def toterminal(self, tw: TerminalWriter) -> None:
+        if self.args:
+            linesofar = ""
+            for name, value in self.args:
+                ns = f"{name} = {value}"
+                if len(ns) + len(linesofar) + 2 > tw.fullwidth:
+                    if linesofar:
+                        tw.line(linesofar)
+                    linesofar = ns
+                else:
+                    if linesofar:
+                        linesofar += ", " + ns
+                    else:
+                        linesofar = ns
+            if linesofar:
+                tw.line(linesofar)
+            tw.line("")
+
+
+def getfslineno(obj: object) -> tuple[str | Path, int]:
+    """Return source location (path, lineno) for the given object.
+
+    If the source cannot be determined return ("", -1).
+
+    The line number is 0-based.
+    """
+    # xxx let decorators etc specify a sane ordering
+    # NOTE: this used to be done in _pytest.compat.getfslineno, initially added
+    #       in 6ec13a2b9.  It ("place_as") appears to be something very custom.
+    obj = get_real_func(obj)
+    if hasattr(obj, "place_as"):
+        obj = obj.place_as
+
+    try:
+        code = Code.from_function(obj)
+    except TypeError:
+        try:
+            fn = inspect.getsourcefile(obj) or inspect.getfile(obj)  # type: ignore[arg-type]
+        except TypeError:
+            return "", -1
+
+        fspath = fn and absolutepath(fn) or ""
+        lineno = -1
+        if fspath:
+            try:
+                _, lineno = findsource(obj)
+            except OSError:
+                pass
+        return fspath, lineno
+
+    return code.path, code.firstlineno
+
+
+# Relative paths that we use to filter traceback entries from appearing to the user;
+# see filter_traceback.
+# note: if we need to add more paths than what we have now we should probably use a list
+# for better maintenance.
+
+_PLUGGY_DIR = Path(pluggy.__file__.rstrip("oc"))
+# pluggy is either a package or a single module depending on the version
+if _PLUGGY_DIR.name == "__init__.py":
+    _PLUGGY_DIR = _PLUGGY_DIR.parent
+_PYTEST_DIR = Path(_pytest.__file__).parent
+
+
+def filter_traceback(entry: TracebackEntry) -> bool:
+    """Return True if a TracebackEntry instance should be included in tracebacks.
+
+    We hide traceback entries of:
+
+    * dynamically generated code (no code to show up for it);
+    * internal traceback from pytest or its internal libraries, py and pluggy.
+    """
+    # entry.path might sometimes return a str object when the entry
+    # points to dynamically generated code.
+    # See https://bitbucket.org/pytest-dev/py/issues/71.
+    raw_filename = entry.frame.code.raw.co_filename
+    is_generated = "<" in raw_filename and ">" in raw_filename
+    if is_generated:
+        return False
+
+    # entry.path might point to a non-existing file, in which case it will
+    # also return a str object. See #1133.
+    p = Path(entry.path)
+
+    parents = p.parents
+    if _PLUGGY_DIR in parents:
+        return False
+    if _PYTEST_DIR in parents:
+        return False
+
+    return True

vllm/lib/python3.10/site-packages/_pytest/_code/source.py

@@ -0,0 +1,215 @@
+# mypy: allow-untyped-defs
+from __future__ import annotations
+
+import ast
+from bisect import bisect_right
+import inspect
+import textwrap
+import tokenize
+import types
+from typing import Iterable
+from typing import Iterator
+from typing import overload
+import warnings
+
+
+class Source:
+    """An immutable object holding a source code fragment.
+
+    When using Source(...), the source lines are deindented.
+    """
+
+    def __init__(self, obj: object = None) -> None:
+        if not obj:
+            self.lines: list[str] = []
+        elif isinstance(obj, Source):
+            self.lines = obj.lines
+        elif isinstance(obj, (tuple, list)):
+            self.lines = deindent(x.rstrip("\n") for x in obj)
+        elif isinstance(obj, str):
+            self.lines = deindent(obj.split("\n"))
+        else:
+            try:
+                rawcode = getrawcode(obj)
+                src = inspect.getsource(rawcode)
+            except TypeError:
+                src = inspect.getsource(obj)  # type: ignore[arg-type]
+            self.lines = deindent(src.split("\n"))
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, Source):
+            return NotImplemented
+        return self.lines == other.lines
+
+    # Ignore type because of https://github.com/python/mypy/issues/4266.
+    __hash__ = None  # type: ignore
+
+    @overload
+    def __getitem__(self, key: int) -> str: ...
+
+    @overload
+    def __getitem__(self, key: slice) -> Source: ...
+
+    def __getitem__(self, key: int | slice) -> str | Source:
+        if isinstance(key, int):
+            return self.lines[key]
+        else:
+            if key.step not in (None, 1):
+                raise IndexError("cannot slice a Source with a step")
+            newsource = Source()
+            newsource.lines = self.lines[key.start : key.stop]
+            return newsource
+
+    def __iter__(self) -> Iterator[str]:
+        return iter(self.lines)
+
+    def __len__(self) -> int:
+        return len(self.lines)
+
+    def strip(self) -> Source:
+        """Return new Source object with trailing and leading blank lines removed."""
+        start, end = 0, len(self)
+        while start < end and not self.lines[start].strip():
+            start += 1
+        while end > start and not self.lines[end - 1].strip():
+            end -= 1
+        source = Source()
+        source.lines[:] = self.lines[start:end]
+        return source
+
+    def indent(self, indent: str = " " * 4) -> Source:
+        """Return a copy of the source object with all lines indented by the
+        given indent-string."""
+        newsource = Source()
+        newsource.lines = [(indent + line) for line in self.lines]
+        return newsource
+
+    def getstatement(self, lineno: int) -> Source:
+        """Return Source statement which contains the given linenumber
+        (counted from 0)."""
+        start, end = self.getstatementrange(lineno)
+        return self[start:end]
+
+    def getstatementrange(self, lineno: int) -> tuple[int, int]:
+        """Return (start, end) tuple which spans the minimal statement region
+        which containing the given lineno."""
+        if not (0 <= lineno < len(self)):
+            raise IndexError("lineno out of range")
+        ast, start, end = getstatementrange_ast(lineno, self)
+        return start, end
+
+    def deindent(self) -> Source:
+        """Return a new Source object deindented."""
+        newsource = Source()
+        newsource.lines[:] = deindent(self.lines)
+        return newsource
+
+    def __str__(self) -> str:
+        return "\n".join(self.lines)
+
+
+#
+# helper functions
+#
+
+
+def findsource(obj) -> tuple[Source | None, int]:
+    try:
+        sourcelines, lineno = inspect.findsource(obj)
+    except Exception:
+        return None, -1
+    source = Source()
+    source.lines = [line.rstrip() for line in sourcelines]
+    return source, lineno
+
+
+def getrawcode(obj: object, trycall: bool = True) -> types.CodeType:
+    """Return code object for given function."""
+    try:
+        return obj.__code__  # type: ignore[attr-defined,no-any-return]
+    except AttributeError:
+        pass
+    if trycall:
+        call = getattr(obj, "__call__", None)
+        if call and not isinstance(obj, type):
+            return getrawcode(call, trycall=False)
+    raise TypeError(f"could not get code object for {obj!r}")
+
+
+def deindent(lines: Iterable[str]) -> list[str]:
+    return textwrap.dedent("\n".join(lines)).splitlines()
+
+
+def get_statement_startend2(lineno: int, node: ast.AST) -> tuple[int, int | None]:
+    # Flatten all statements and except handlers into one lineno-list.
+    # AST's line numbers start indexing at 1.
+    values: list[int] = []
+    for x in ast.walk(node):
+        if isinstance(x, (ast.stmt, ast.ExceptHandler)):
+            # The lineno points to the class/def, so need to include the decorators.
+            if isinstance(x, (ast.ClassDef, ast.FunctionDef, ast.AsyncFunctionDef)):
+                for d in x.decorator_list:
+                    values.append(d.lineno - 1)
+            values.append(x.lineno - 1)
+            for name in ("finalbody", "orelse"):
+                val: list[ast.stmt] | None = getattr(x, name, None)
+                if val:
+                    # Treat the finally/orelse part as its own statement.
+                    values.append(val[0].lineno - 1 - 1)
+    values.sort()
+    insert_index = bisect_right(values, lineno)
+    start = values[insert_index - 1]
+    if insert_index >= len(values):
+        end = None
+    else:
+        end = values[insert_index]
+    return start, end
+
+
+def getstatementrange_ast(
+    lineno: int,
+    source: Source,
+    assertion: bool = False,
+    astnode: ast.AST | None = None,
+) -> tuple[ast.AST, int, int]:
+    if astnode is None:
+        content = str(source)
+        # See #4260:
+        # Don't produce duplicate warnings when compiling source to find AST.
+        with warnings.catch_warnings():
+            warnings.simplefilter("ignore")
+            astnode = ast.parse(content, "source", "exec")
+
+    start, end = get_statement_startend2(lineno, astnode)
+    # We need to correct the end:
+    # - ast-parsing strips comments
+    # - there might be empty lines
+    # - we might have lesser indented code blocks at the end
+    if end is None:
+        end = len(source.lines)
+
+    if end > start + 1:
+        # Make sure we don't span differently indented code blocks
+        # by using the BlockFinder helper used which inspect.getsource() uses itself.
+        block_finder = inspect.BlockFinder()
+        # If we start with an indented line, put blockfinder to "started" mode.
+        block_finder.started = (
+            bool(source.lines[start]) and source.lines[start][0].isspace()
+        )
+        it = ((x + "\n") for x in source.lines[start:end])
+        try:
+            for tok in tokenize.generate_tokens(lambda: next(it)):
+                block_finder.tokeneater(*tok)
+        except (inspect.EndOfBlock, IndentationError):
+            end = block_finder.last + start
+        except Exception:
+            pass
+
+    # The end might still point to a comment or empty line, correct it.
+    while end:
+        line = source.lines[end - 1].lstrip()
+        if line.startswith("#") or not line:
+            end -= 1
+        else:
+            break
+    return astnode, start, end

vllm/lib/python3.10/site-packages/_pytest/_io/__init__.py

@@ -0,0 +1,10 @@
+from __future__ import annotations
+
+from .terminalwriter import get_terminal_width
+from .terminalwriter import TerminalWriter
+
+
+__all__ = [
+    "TerminalWriter",
+    "get_terminal_width",
+]

vllm/lib/python3.10/site-packages/_pytest/_io/wcwidth.py

@@ -0,0 +1,57 @@
+from __future__ import annotations
+
+from functools import lru_cache
+import unicodedata
+
+
+@lru_cache(100)
+def wcwidth(c: str) -> int:
+    """Determine how many columns are needed to display a character in a terminal.
+
+    Returns -1 if the character is not printable.
+    Returns 0, 1 or 2 for other characters.
+    """
+    o = ord(c)
+
+    # ASCII fast path.
+    if 0x20 <= o < 0x07F:
+        return 1
+
+    # Some Cf/Zp/Zl characters which should be zero-width.
+    if (
+        o == 0x0000
+        or 0x200B <= o <= 0x200F
+        or 0x2028 <= o <= 0x202E
+        or 0x2060 <= o <= 0x2063
+    ):
+        return 0
+
+    category = unicodedata.category(c)
+
+    # Control characters.
+    if category == "Cc":
+        return -1
+
+    # Combining characters with zero width.
+    if category in ("Me", "Mn"):
+        return 0
+
+    # Full/Wide east asian characters.
+    if unicodedata.east_asian_width(c) in ("F", "W"):
+        return 2
+
+    return 1
+
+
+def wcswidth(s: str) -> int:
+    """Determine how many columns are needed to display a string in a terminal.
+
+    Returns -1 if the string contains non-printable characters.
+    """
+    width = 0
+    for c in unicodedata.normalize("NFC", s):
+        wc = wcwidth(c)
+        if wc < 0:
+            return -1
+        width += wc
+    return width

vllm/lib/python3.10/site-packages/_pytest/_py/error.py

@@ -0,0 +1,111 @@
+"""create errno-specific classes for IO or os calls."""
+
+from __future__ import annotations
+
+import errno
+import os
+import sys
+from typing import Callable
+from typing import TYPE_CHECKING
+from typing import TypeVar
+
+
+if TYPE_CHECKING:
+    from typing_extensions import ParamSpec
+
+    P = ParamSpec("P")
+
+R = TypeVar("R")
+
+
+class Error(EnvironmentError):
+    def __repr__(self) -> str:
+        return "{}.{} {!r}: {} ".format(
+            self.__class__.__module__,
+            self.__class__.__name__,
+            self.__class__.__doc__,
+            " ".join(map(str, self.args)),
+            # repr(self.args)
+        )
+
+    def __str__(self) -> str:
+        s = "[{}]: {}".format(
+            self.__class__.__doc__,
+            " ".join(map(str, self.args)),
+        )
+        return s
+
+
+_winerrnomap = {
+    2: errno.ENOENT,
+    3: errno.ENOENT,
+    17: errno.EEXIST,
+    18: errno.EXDEV,
+    13: errno.EBUSY,  # empty cd drive, but ENOMEDIUM seems unavailable
+    22: errno.ENOTDIR,
+    20: errno.ENOTDIR,
+    267: errno.ENOTDIR,
+    5: errno.EACCES,  # anything better?
+}
+
+
+class ErrorMaker:
+    """lazily provides Exception classes for each possible POSIX errno
+    (as defined per the 'errno' module).  All such instances
+    subclass EnvironmentError.
+    """
+
+    _errno2class: dict[int, type[Error]] = {}
+
+    def __getattr__(self, name: str) -> type[Error]:
+        if name[0] == "_":
+            raise AttributeError(name)
+        eno = getattr(errno, name)
+        cls = self._geterrnoclass(eno)
+        setattr(self, name, cls)
+        return cls
+
+    def _geterrnoclass(self, eno: int) -> type[Error]:
+        try:
+            return self._errno2class[eno]
+        except KeyError:
+            clsname = errno.errorcode.get(eno, "UnknownErrno%d" % (eno,))
+            errorcls = type(
+                clsname,
+                (Error,),
+                {"__module__": "py.error", "__doc__": os.strerror(eno)},
+            )
+            self._errno2class[eno] = errorcls
+            return errorcls
+
+    def checked_call(
+        self, func: Callable[P, R], *args: P.args, **kwargs: P.kwargs
+    ) -> R:
+        """Call a function and raise an errno-exception if applicable."""
+        __tracebackhide__ = True
+        try:
+            return func(*args, **kwargs)
+        except Error:
+            raise
+        except OSError as value:
+            if not hasattr(value, "errno"):
+                raise
+            errno = value.errno
+            if sys.platform == "win32":
+                try:
+                    cls = self._geterrnoclass(_winerrnomap[errno])
+                except KeyError:
+                    raise value
+            else:
+                # we are not on Windows, or we got a proper OSError
+                cls = self._geterrnoclass(errno)
+
+            raise cls(f"{func.__name__}{args!r}")
+
+
+_error_maker = ErrorMaker()
+checked_call = _error_maker.checked_call
+
+
+def __getattr__(attr: str) -> type[Error]:
+    return getattr(_error_maker, attr)  # type: ignore[no-any-return]

vllm/lib/python3.10/site-packages/_pytest/_py/path.py

@@ -0,0 +1,1475 @@
+# mypy: allow-untyped-defs
+"""local path implementation."""
+
+from __future__ import annotations
+
+import atexit
+from contextlib import contextmanager
+import fnmatch
+import importlib.util
+import io
+import os
+from os.path import abspath
+from os.path import dirname
+from os.path import exists
+from os.path import isabs
+from os.path import isdir
+from os.path import isfile
+from os.path import islink
+from os.path import normpath
+import posixpath
+from stat import S_ISDIR
+from stat import S_ISLNK
+from stat import S_ISREG
+import sys
+from typing import Any
+from typing import Callable
+from typing import cast
+from typing import Literal
+from typing import overload
+from typing import TYPE_CHECKING
+import uuid
+import warnings
+
+from . import error
+
+
+# Moved from local.py.
+iswin32 = sys.platform == "win32" or (getattr(os, "_name", False) == "nt")
+
+
+class Checkers:
+    _depend_on_existence = "exists", "link", "dir", "file"
+
+    def __init__(self, path):
+        self.path = path
+
+    def dotfile(self):
+        return self.path.basename.startswith(".")
+
+    def ext(self, arg):
+        if not arg.startswith("."):
+            arg = "." + arg
+        return self.path.ext == arg
+
+    def basename(self, arg):
+        return self.path.basename == arg
+
+    def basestarts(self, arg):
+        return self.path.basename.startswith(arg)
+
+    def relto(self, arg):
+        return self.path.relto(arg)
+
+    def fnmatch(self, arg):
+        return self.path.fnmatch(arg)
+
+    def endswith(self, arg):
+        return str(self.path).endswith(arg)
+
+    def _evaluate(self, kw):
+        from .._code.source import getrawcode
+
+        for name, value in kw.items():
+            invert = False
+            meth = None
+            try:
+                meth = getattr(self, name)
+            except AttributeError:
+                if name[:3] == "not":
+                    invert = True
+                    try:
+                        meth = getattr(self, name[3:])
+                    except AttributeError:
+                        pass
+            if meth is None:
+                raise TypeError(f"no {name!r} checker available for {self.path!r}")
+            try:
+                if getrawcode(meth).co_argcount > 1:
+                    if (not meth(value)) ^ invert:
+                        return False
+                else:
+                    if bool(value) ^ bool(meth()) ^ invert:
+                        return False
+            except (error.ENOENT, error.ENOTDIR, error.EBUSY):
+                # EBUSY feels not entirely correct,
+                # but its kind of necessary since ENOMEDIUM
+                # is not accessible in python
+                for name in self._depend_on_existence:
+                    if name in kw:
+                        if kw.get(name):
+                            return False
+                    name = "not" + name
+                    if name in kw:
+                        if not kw.get(name):
+                            return False
+        return True
+
+    _statcache: Stat
+
+    def _stat(self) -> Stat:
+        try:
+            return self._statcache
+        except AttributeError:
+            try:
+                self._statcache = self.path.stat()
+            except error.ELOOP:
+                self._statcache = self.path.lstat()
+            return self._statcache
+
+    def dir(self):
+        return S_ISDIR(self._stat().mode)
+
+    def file(self):
+        return S_ISREG(self._stat().mode)
+
+    def exists(self):
+        return self._stat()
+
+    def link(self):
+        st = self.path.lstat()
+        return S_ISLNK(st.mode)
+
+
+class NeverRaised(Exception):
+    pass
+
+
+class Visitor:
+    def __init__(self, fil, rec, ignore, bf, sort):
+        if isinstance(fil, str):
+            fil = FNMatcher(fil)
+        if isinstance(rec, str):
+            self.rec: Callable[[LocalPath], bool] = FNMatcher(rec)
+        elif not hasattr(rec, "__call__") and rec:
+            self.rec = lambda path: True
+        else:
+            self.rec = rec
+        self.fil = fil
+        self.ignore = ignore
+        self.breadthfirst = bf
+        self.optsort = cast(Callable[[Any], Any], sorted) if sort else (lambda x: x)
+
+    def gen(self, path):
+        try:
+            entries = path.listdir()
+        except self.ignore:
+            return
+        rec = self.rec
+        dirs = self.optsort(
+            [p for p in entries if p.check(dir=1) and (rec is None or rec(p))]
+        )
+        if not self.breadthfirst:
+            for subdir in dirs:
+                yield from self.gen(subdir)
+        for p in self.optsort(entries):
+            if self.fil is None or self.fil(p):
+                yield p
+        if self.breadthfirst:
+            for subdir in dirs:
+                yield from self.gen(subdir)
+
+
+class FNMatcher:
+    def __init__(self, pattern):
+        self.pattern = pattern
+
+    def __call__(self, path):
+        pattern = self.pattern
+
+        if (
+            pattern.find(path.sep) == -1
+            and iswin32
+            and pattern.find(posixpath.sep) != -1
+        ):
+            # Running on Windows, the pattern has no Windows path separators,
+            # and the pattern has one or more Posix path separators. Replace
+            # the Posix path separators with the Windows path separator.
+            pattern = pattern.replace(posixpath.sep, path.sep)
+
+        if pattern.find(path.sep) == -1:
+            name = path.basename
+        else:
+            name = str(path)  # path.strpath # XXX svn?
+            if not os.path.isabs(pattern):
+                pattern = "*" + path.sep + pattern
+        return fnmatch.fnmatch(name, pattern)
+
+
+def map_as_list(func, iter):
+    return list(map(func, iter))
+
+
+class Stat:
+    if TYPE_CHECKING:
+
+        @property
+        def size(self) -> int: ...
+
+        @property
+        def mtime(self) -> float: ...
+
+    def __getattr__(self, name: str) -> Any:
+        return getattr(self._osstatresult, "st_" + name)
+
+    def __init__(self, path, osstatresult):
+        self.path = path
+        self._osstatresult = osstatresult
+
+    @property
+    def owner(self):
+        if iswin32:
+            raise NotImplementedError("XXX win32")
+        import pwd
+
+        entry = error.checked_call(pwd.getpwuid, self.uid)  # type:ignore[attr-defined,unused-ignore]
+        return entry[0]
+
+    @property
+    def group(self):
+        """Return group name of file."""
+        if iswin32:
+            raise NotImplementedError("XXX win32")
+        import grp
+
+        entry = error.checked_call(grp.getgrgid, self.gid)  # type:ignore[attr-defined,unused-ignore]
+        return entry[0]
+
+    def isdir(self):
+        return S_ISDIR(self._osstatresult.st_mode)
+
+    def isfile(self):
+        return S_ISREG(self._osstatresult.st_mode)
+
+    def islink(self):
+        self.path.lstat()
+        return S_ISLNK(self._osstatresult.st_mode)
+
+
+def getuserid(user):
+    import pwd
+
+    if not isinstance(user, int):
+        user = pwd.getpwnam(user)[2]  # type:ignore[attr-defined,unused-ignore]
+    return user
+
+
+def getgroupid(group):
+    import grp
+
+    if not isinstance(group, int):
+        group = grp.getgrnam(group)[2]  # type:ignore[attr-defined,unused-ignore]
+    return group
+
+
+class LocalPath:
+    """Object oriented interface to os.path and other local filesystem
+    related information.
+    """
+
+    class ImportMismatchError(ImportError):
+        """raised on pyimport() if there is a mismatch of __file__'s"""
+
+    sep = os.sep
+
+    def __init__(self, path=None, expanduser=False):
+        """Initialize and return a local Path instance.
+
+        Path can be relative to the current directory.
+        If path is None it defaults to the current working directory.
+        If expanduser is True, tilde-expansion is performed.
+        Note that Path instances always carry an absolute path.
+        Note also that passing in a local path object will simply return
+        the exact same path object. Use new() to get a new copy.
+        """
+        if path is None:
+            self.strpath = error.checked_call(os.getcwd)
+        else:
+            try:
+                path = os.fspath(path)
+            except TypeError:
+                raise ValueError(
+                    "can only pass None, Path instances "
+                    "or non-empty strings to LocalPath"
+                )
+            if expanduser:
+                path = os.path.expanduser(path)
+            self.strpath = abspath(path)
+
+    if sys.platform != "win32":
+
+        def chown(self, user, group, rec=0):
+            """Change ownership to the given user and group.
+            user and group may be specified by a number or
+            by a name.  if rec is True change ownership
+            recursively.
+            """
+            uid = getuserid(user)
+            gid = getgroupid(group)
+            if rec:
+                for x in self.visit(rec=lambda x: x.check(link=0)):
+                    if x.check(link=0):
+                        error.checked_call(os.chown, str(x), uid, gid)
+            error.checked_call(os.chown, str(self), uid, gid)
+
+        def readlink(self) -> str:
+            """Return value of a symbolic link."""
+            # https://github.com/python/mypy/issues/12278
+            return error.checked_call(os.readlink, self.strpath)  # type: ignore[arg-type,return-value,unused-ignore]
+
+        def mklinkto(self, oldname):
+            """Posix style hard link to another name."""
+            error.checked_call(os.link, str(oldname), str(self))
+
+        def mksymlinkto(self, value, absolute=1):
+            """Create a symbolic link with the given value (pointing to another name)."""
+            if absolute:
+                error.checked_call(os.symlink, str(value), self.strpath)
+            else:
+                base = self.common(value)
+                # with posix local paths '/' is always a common base
+                relsource = self.__class__(value).relto(base)
+                reldest = self.relto(base)
+                n = reldest.count(self.sep)
+                target = self.sep.join(("..",) * n + (relsource,))
+                error.checked_call(os.symlink, target, self.strpath)
+
+    def __div__(self, other):
+        return self.join(os.fspath(other))
+
+    __truediv__ = __div__  # py3k
+
+    @property
+    def basename(self):
+        """Basename part of path."""
+        return self._getbyspec("basename")[0]
+
+    @property
+    def dirname(self):
+        """Dirname part of path."""
+        return self._getbyspec("dirname")[0]
+
+    @property
+    def purebasename(self):
+        """Pure base name of the path."""
+        return self._getbyspec("purebasename")[0]
+
+    @property
+    def ext(self):
+        """Extension of the path (including the '.')."""
+        return self._getbyspec("ext")[0]
+
+    def read_binary(self):
+        """Read and return a bytestring from reading the path."""
+        with self.open("rb") as f:
+            return f.read()
+
+    def read_text(self, encoding):
+        """Read and return a Unicode string from reading the path."""
+        with self.open("r", encoding=encoding) as f:
+            return f.read()
+
+    def read(self, mode="r"):
+        """Read and return a bytestring from reading the path."""
+        with self.open(mode) as f:
+            return f.read()
+
+    def readlines(self, cr=1):
+        """Read and return a list of lines from the path. if cr is False, the
+        newline will be removed from the end of each line."""
+        mode = "r"
+
+        if not cr:
+            content = self.read(mode)
+            return content.split("\n")
+        else:
+            f = self.open(mode)
+            try:
+                return f.readlines()
+            finally:
+                f.close()
+
+    def load(self):
+        """(deprecated) return object unpickled from self.read()"""
+        f = self.open("rb")
+        try:
+            import pickle
+
+            return error.checked_call(pickle.load, f)
+        finally:
+            f.close()
+
+    def move(self, target):
+        """Move this path to target."""
+        if target.relto(self):
+            raise error.EINVAL(target, "cannot move path into a subdirectory of itself")
+        try:
+            self.rename(target)
+        except error.EXDEV:  # invalid cross-device link
+            self.copy(target)
+            self.remove()
+
+    def fnmatch(self, pattern):
+        """Return true if the basename/fullname matches the glob-'pattern'.
+
+        valid pattern characters::
+
+            *       matches everything
+            ?       matches any single character
+            [seq]   matches any character in seq
+            [!seq]  matches any char not in seq
+
+        If the pattern contains a path-separator then the full path
+        is used for pattern matching and a '*' is prepended to the
+        pattern.
+
+        if the pattern doesn't contain a path-separator the pattern
+        is only matched against the basename.
+        """
+        return FNMatcher(pattern)(self)
+
+    def relto(self, relpath):
+        """Return a string which is the relative part of the path
+        to the given 'relpath'.
+        """
+        if not isinstance(relpath, (str, LocalPath)):
+            raise TypeError(f"{relpath!r}: not a string or path object")
+        strrelpath = str(relpath)
+        if strrelpath and strrelpath[-1] != self.sep:
+            strrelpath += self.sep
+        # assert strrelpath[-1] == self.sep
+        # assert strrelpath[-2] != self.sep
+        strself = self.strpath
+        if sys.platform == "win32" or getattr(os, "_name", None) == "nt":
+            if os.path.normcase(strself).startswith(os.path.normcase(strrelpath)):
+                return strself[len(strrelpath) :]
+        elif strself.startswith(strrelpath):
+            return strself[len(strrelpath) :]
+        return ""
+
+    def ensure_dir(self, *args):
+        """Ensure the path joined with args is a directory."""
+        return self.ensure(*args, dir=True)
+
+    def bestrelpath(self, dest):
+        """Return a string which is a relative path from self
+        (assumed to be a directory) to dest such that
+        self.join(bestrelpath) == dest and if not such
+        path can be determined return dest.
+        """
+        try:
+            if self == dest:
+                return os.curdir
+            base = self.common(dest)
+            if not base:  # can be the case on windows
+                return str(dest)
+            self2base = self.relto(base)
+            reldest = dest.relto(base)
+            if self2base:
+                n = self2base.count(self.sep) + 1
+            else:
+                n = 0
+            lst = [os.pardir] * n
+            if reldest:
+                lst.append(reldest)
+            target = dest.sep.join(lst)
+            return target
+        except AttributeError:
+            return str(dest)
+
+    def exists(self):
+        return self.check()
+
+    def isdir(self):
+        return self.check(dir=1)
+
+    def isfile(self):
+        return self.check(file=1)
+
+    def parts(self, reverse=False):
+        """Return a root-first list of all ancestor directories
+        plus the path itself.
+        """
+        current = self
+        lst = [self]
+        while 1:
+            last = current
+            current = current.dirpath()
+            if last == current:
+                break
+            lst.append(current)
+        if not reverse:
+            lst.reverse()
+        return lst
+
+    def common(self, other):
+        """Return the common part shared with the other path
+        or None if there is no common part.
+        """
+        last = None
+        for x, y in zip(self.parts(), other.parts()):
+            if x != y:
+                return last
+            last = x
+        return last
+
+    def __add__(self, other):
+        """Return new path object with 'other' added to the basename"""
+        return self.new(basename=self.basename + str(other))
+
+    def visit(self, fil=None, rec=None, ignore=NeverRaised, bf=False, sort=False):
+        """Yields all paths below the current one
+
+        fil is a filter (glob pattern or callable), if not matching the
+        path will not be yielded, defaulting to None (everything is
+        returned)
+
+        rec is a filter (glob pattern or callable) that controls whether
+        a node is descended, defaulting to None
+
+        ignore is an Exception class that is ignoredwhen calling dirlist()
+        on any of the paths (by default, all exceptions are reported)
+
+        bf if True will cause a breadthfirst search instead of the
+        default depthfirst. Default: False
+
+        sort if True will sort entries within each directory level.
+        """
+        yield from Visitor(fil, rec, ignore, bf, sort).gen(self)
+
+    def _sortlist(self, res, sort):
+        if sort:
+            if hasattr(sort, "__call__"):
+                warnings.warn(
+                    DeprecationWarning(
+                        "listdir(sort=callable) is deprecated and breaks on python3"
+                    ),
+                    stacklevel=3,
+                )
+                res.sort(sort)
+            else:
+                res.sort()
+
+    def __fspath__(self):
+        return self.strpath
+
+    def __hash__(self):
+        s = self.strpath
+        if iswin32:
+            s = s.lower()
+        return hash(s)
+
+    def __eq__(self, other):
+        s1 = os.fspath(self)
+        try:
+            s2 = os.fspath(other)
+        except TypeError:
+            return False
+        if iswin32:
+            s1 = s1.lower()
+            try:
+                s2 = s2.lower()
+            except AttributeError:
+                return False
+        return s1 == s2
+
+    def __ne__(self, other):
+        return not (self == other)
+
+    def __lt__(self, other):
+        return os.fspath(self) < os.fspath(other)
+
+    def __gt__(self, other):
+        return os.fspath(self) > os.fspath(other)
+
+    def samefile(self, other):
+        """Return True if 'other' references the same file as 'self'."""
+        other = os.fspath(other)
+        if not isabs(other):
+            other = abspath(other)
+        if self == other:
+            return True
+        if not hasattr(os.path, "samefile"):
+            return False
+        return error.checked_call(os.path.samefile, self.strpath, other)
+
+    def remove(self, rec=1, ignore_errors=False):
+        """Remove a file or directory (or a directory tree if rec=1).
+        if ignore_errors is True, errors while removing directories will
+        be ignored.
+        """
+        if self.check(dir=1, link=0):
+            if rec:
+                # force remove of readonly files on windows
+                if iswin32:
+                    self.chmod(0o700, rec=1)
+                import shutil
+
+                error.checked_call(
+                    shutil.rmtree, self.strpath, ignore_errors=ignore_errors
+                )
+            else:
+                error.checked_call(os.rmdir, self.strpath)
+        else:
+            if iswin32:
+                self.chmod(0o700)
+            error.checked_call(os.remove, self.strpath)
+
+    def computehash(self, hashtype="md5", chunksize=524288):
+        """Return hexdigest of hashvalue for this file."""
+        try:
+            try:
+                import hashlib as mod
+            except ImportError:
+                if hashtype == "sha1":
+                    hashtype = "sha"
+                mod = __import__(hashtype)
+            hash = getattr(mod, hashtype)()
+        except (AttributeError, ImportError):
+            raise ValueError(f"Don't know how to compute {hashtype!r} hash")
+        f = self.open("rb")
+        try:
+            while 1:
+                buf = f.read(chunksize)
+                if not buf:
+                    return hash.hexdigest()
+                hash.update(buf)
+        finally:
+            f.close()
+
+    def new(self, **kw):
+        """Create a modified version of this path.
+        the following keyword arguments modify various path parts::
+
+          a:/some/path/to/a/file.ext
+          xx                           drive
+          xxxxxxxxxxxxxxxxx            dirname
+                            xxxxxxxx   basename
+                            xxxx       purebasename
+                                 xxx   ext
+        """
+        obj = object.__new__(self.__class__)
+        if not kw:
+            obj.strpath = self.strpath
+            return obj
+        drive, dirname, basename, purebasename, ext = self._getbyspec(
+            "drive,dirname,basename,purebasename,ext"
+        )
+        if "basename" in kw:
+            if "purebasename" in kw or "ext" in kw:
+                raise ValueError(f"invalid specification {kw!r}")
+        else:
+            pb = kw.setdefault("purebasename", purebasename)
+            try:
+                ext = kw["ext"]
+            except KeyError:
+                pass
+            else:
+                if ext and not ext.startswith("."):
+                    ext = "." + ext
+            kw["basename"] = pb + ext
+
+        if "dirname" in kw and not kw["dirname"]:
+            kw["dirname"] = drive
+        else:
+            kw.setdefault("dirname", dirname)
+        kw.setdefault("sep", self.sep)
+        obj.strpath = normpath("{dirname}{sep}{basename}".format(**kw))
+        return obj
+
+    def _getbyspec(self, spec: str) -> list[str]:
+        """See new for what 'spec' can be."""
+        res = []
+        parts = self.strpath.split(self.sep)
+
+        args = filter(None, spec.split(","))
+        for name in args:
+            if name == "drive":
+                res.append(parts[0])
+            elif name == "dirname":
+                res.append(self.sep.join(parts[:-1]))
+            else:
+                basename = parts[-1]
+                if name == "basename":
+                    res.append(basename)
+                else:
+                    i = basename.rfind(".")
+                    if i == -1:
+                        purebasename, ext = basename, ""
+                    else:
+                        purebasename, ext = basename[:i], basename[i:]
+                    if name == "purebasename":
+                        res.append(purebasename)
+                    elif name == "ext":
+                        res.append(ext)
+                    else:
+                        raise ValueError(f"invalid part specification {name!r}")
+        return res
+
+    def dirpath(self, *args, **kwargs):
+        """Return the directory path joined with any given path arguments."""
+        if not kwargs:
+            path = object.__new__(self.__class__)
+            path.strpath = dirname(self.strpath)
+            if args:
+                path = path.join(*args)
+            return path
+        return self.new(basename="").join(*args, **kwargs)
+
+    def join(self, *args: os.PathLike[str], abs: bool = False) -> LocalPath:
+        """Return a new path by appending all 'args' as path
+        components.  if abs=1 is used restart from root if any
+        of the args is an absolute path.
+        """
+        sep = self.sep
+        strargs = [os.fspath(arg) for arg in args]
+        strpath = self.strpath
+        if abs:
+            newargs: list[str] = []
+            for arg in reversed(strargs):
+                if isabs(arg):
+                    strpath = arg
+                    strargs = newargs
+                    break
+                newargs.insert(0, arg)
+        # special case for when we have e.g. strpath == "/"
+        actual_sep = "" if strpath.endswith(sep) else sep
+        for arg in strargs:
+            arg = arg.strip(sep)
+            if iswin32:
+                # allow unix style paths even on windows.
+                arg = arg.strip("/")
+                arg = arg.replace("/", sep)
+            strpath = strpath + actual_sep + arg
+            actual_sep = sep
+        obj = object.__new__(self.__class__)
+        obj.strpath = normpath(strpath)
+        return obj
+
+    def open(self, mode="r", ensure=False, encoding=None):
+        """Return an opened file with the given mode.
+
+        If ensure is True, create parent directories if needed.
+        """
+        if ensure:
+            self.dirpath().ensure(dir=1)
+        if encoding:
+            return error.checked_call(
+                io.open,
+                self.strpath,
+                mode,
+                encoding=encoding,
+            )
+        return error.checked_call(open, self.strpath, mode)
+
+    def _fastjoin(self, name):
+        child = object.__new__(self.__class__)
+        child.strpath = self.strpath + self.sep + name
+        return child
+
+    def islink(self):
+        return islink(self.strpath)
+
+    def check(self, **kw):
+        """Check a path for existence and properties.
+
+        Without arguments, return True if the path exists, otherwise False.
+
+        valid checkers::
+
+            file = 1  # is a file
+            file = 0  # is not a file (may not even exist)
+            dir = 1  # is a dir
+            link = 1  # is a link
+            exists = 1  # exists
+
+        You can specify multiple checker definitions, for example::
+
+            path.check(file=1, link=1)  # a link pointing to a file
+        """
+        if not kw:
+            return exists(self.strpath)
+        if len(kw) == 1:
+            if "dir" in kw:
+                return not kw["dir"] ^ isdir(self.strpath)
+            if "file" in kw:
+                return not kw["file"] ^ isfile(self.strpath)
+        if not kw:
+            kw = {"exists": 1}
+        return Checkers(self)._evaluate(kw)
+
+    _patternchars = set("*?[" + os.sep)
+
+    def listdir(self, fil=None, sort=None):
+        """List directory contents, possibly filter by the given fil func
+        and possibly sorted.
+        """
+        if fil is None and sort is None:
+            names = error.checked_call(os.listdir, self.strpath)
+            return map_as_list(self._fastjoin, names)
+        if isinstance(fil, str):
+            if not self._patternchars.intersection(fil):
+                child = self._fastjoin(fil)
+                if exists(child.strpath):
+                    return [child]
+                return []
+            fil = FNMatcher(fil)
+        names = error.checked_call(os.listdir, self.strpath)
+        res = []
+        for name in names:
+            child = self._fastjoin(name)
+            if fil is None or fil(child):
+                res.append(child)
+        self._sortlist(res, sort)
+        return res
+
+    def size(self) -> int:
+        """Return size of the underlying file object"""
+        return self.stat().size
+
+    def mtime(self) -> float:
+        """Return last modification time of the path."""
+        return self.stat().mtime
+
+    def copy(self, target, mode=False, stat=False):
+        """Copy path to target.
+
+        If mode is True, will copy permission from path to target.
+        If stat is True, copy permission, last modification
+        time, last access time, and flags from path to target.
+        """
+        if self.check(file=1):
+            if target.check(dir=1):
+                target = target.join(self.basename)
+            assert self != target
+            copychunked(self, target)
+            if mode:
+                copymode(self.strpath, target.strpath)
+            if stat:
+                copystat(self, target)
+        else:
+
+            def rec(p):
+                return p.check(link=0)
+
+            for x in self.visit(rec=rec):
+                relpath = x.relto(self)
+                newx = target.join(relpath)
+                newx.dirpath().ensure(dir=1)
+                if x.check(link=1):
+                    newx.mksymlinkto(x.readlink())
+                    continue
+                elif x.check(file=1):
+                    copychunked(x, newx)
+                elif x.check(dir=1):
+                    newx.ensure(dir=1)
+                if mode:
+                    copymode(x.strpath, newx.strpath)
+                if stat:
+                    copystat(x, newx)
+
+    def rename(self, target):
+        """Rename this path to target."""
+        target = os.fspath(target)
+        return error.checked_call(os.rename, self.strpath, target)
+
+    def dump(self, obj, bin=1):
+        """Pickle object into path location"""
+        f = self.open("wb")
+        import pickle
+
+        try:
+            error.checked_call(pickle.dump, obj, f, bin)
+        finally:
+            f.close()
+
+    def mkdir(self, *args):
+        """Create & return the directory joined with args."""
+        p = self.join(*args)
+        error.checked_call(os.mkdir, os.fspath(p))
+        return p
+
+    def write_binary(self, data, ensure=False):
+        """Write binary data into path.   If ensure is True create
+        missing parent directories.
+        """
+        if ensure:
+            self.dirpath().ensure(dir=1)
+        with self.open("wb") as f:
+            f.write(data)
+
+    def write_text(self, data, encoding, ensure=False):
+        """Write text data into path using the specified encoding.
+        If ensure is True create missing parent directories.
+        """
+        if ensure:
+            self.dirpath().ensure(dir=1)
+        with self.open("w", encoding=encoding) as f:
+            f.write(data)
+
+    def write(self, data, mode="w", ensure=False):
+        """Write data into path.   If ensure is True create
+        missing parent directories.
+        """
+        if ensure:
+            self.dirpath().ensure(dir=1)
+        if "b" in mode:
+            if not isinstance(data, bytes):
+                raise ValueError("can only process bytes")
+        else:
+            if not isinstance(data, str):
+                if not isinstance(data, bytes):
+                    data = str(data)
+                else:
+                    data = data.decode(sys.getdefaultencoding())
+        f = self.open(mode)
+        try:
+            f.write(data)
+        finally:
+            f.close()
+
+    def _ensuredirs(self):
+        parent = self.dirpath()
+        if parent == self:
+            return self
+        if parent.check(dir=0):
+            parent._ensuredirs()
+        if self.check(dir=0):
+            try:
+                self.mkdir()
+            except error.EEXIST:
+                # race condition: file/dir created by another thread/process.
+                # complain if it is not a dir
+                if self.check(dir=0):
+                    raise
+        return self
+
+    def ensure(self, *args, **kwargs):
+        """Ensure that an args-joined path exists (by default as
+        a file). if you specify a keyword argument 'dir=True'
+        then the path is forced to be a directory path.
+        """
+        p = self.join(*args)
+        if kwargs.get("dir", 0):
+            return p._ensuredirs()
+        else:
+            p.dirpath()._ensuredirs()
+            if not p.check(file=1):
+                p.open("wb").close()
+            return p
+
+    @overload
+    def stat(self, raising: Literal[True] = ...) -> Stat: ...
+
+    @overload
+    def stat(self, raising: Literal[False]) -> Stat | None: ...
+
+    def stat(self, raising: bool = True) -> Stat | None:
+        """Return an os.stat() tuple."""
+        if raising:
+            return Stat(self, error.checked_call(os.stat, self.strpath))
+        try:
+            return Stat(self, os.stat(self.strpath))
+        except KeyboardInterrupt:
+            raise
+        except Exception:
+            return None
+
+    def lstat(self) -> Stat:
+        """Return an os.lstat() tuple."""
+        return Stat(self, error.checked_call(os.lstat, self.strpath))
+
+    def setmtime(self, mtime=None):
+        """Set modification time for the given path.  if 'mtime' is None
+        (the default) then the file's mtime is set to current time.
+
+        Note that the resolution for 'mtime' is platform dependent.
+        """
+        if mtime is None:
+            return error.checked_call(os.utime, self.strpath, mtime)
+        try:
+            return error.checked_call(os.utime, self.strpath, (-1, mtime))
+        except error.EINVAL:
+            return error.checked_call(os.utime, self.strpath, (self.atime(), mtime))
+
+    def chdir(self):
+        """Change directory to self and return old current directory"""
+        try:
+            old = self.__class__()
+        except error.ENOENT:
+            old = None
+        error.checked_call(os.chdir, self.strpath)
+        return old
+
+    @contextmanager
+    def as_cwd(self):
+        """
+        Return a context manager, which changes to the path's dir during the
+        managed "with" context.
+        On __enter__ it returns the old dir, which might be ``None``.
+        """
+        old = self.chdir()
+        try:
+            yield old
+        finally:
+            if old is not None:
+                old.chdir()
+
+    def realpath(self):
+        """Return a new path which contains no symbolic links."""
+        return self.__class__(os.path.realpath(self.strpath))
+
+    def atime(self):
+        """Return last access time of the path."""
+        return self.stat().atime
+
+    def __repr__(self):
+        return f"local({self.strpath!r})"
+
+    def __str__(self):
+        """Return string representation of the Path."""
+        return self.strpath
+
+    def chmod(self, mode, rec=0):
+        """Change permissions to the given mode. If mode is an
+        integer it directly encodes the os-specific modes.
+        if rec is True perform recursively.
+        """
+        if not isinstance(mode, int):
+            raise TypeError(f"mode {mode!r} must be an integer")
+        if rec:
+            for x in self.visit(rec=rec):
+                error.checked_call(os.chmod, str(x), mode)
+        error.checked_call(os.chmod, self.strpath, mode)
+
+    def pypkgpath(self):
+        """Return the Python package path by looking for the last
+        directory upwards which still contains an __init__.py.
+        Return None if a pkgpath cannot be determined.
+        """
+        pkgpath = None
+        for parent in self.parts(reverse=True):
+            if parent.isdir():
+                if not parent.join("__init__.py").exists():
+                    break
+                if not isimportable(parent.basename):
+                    break
+                pkgpath = parent
+        return pkgpath
+
+    def _ensuresyspath(self, ensuremode, path):
+        if ensuremode:
+            s = str(path)
+            if ensuremode == "append":
+                if s not in sys.path:
+                    sys.path.append(s)
+            else:
+                if s != sys.path[0]:
+                    sys.path.insert(0, s)
+
+    def pyimport(self, modname=None, ensuresyspath=True):
+        """Return path as an imported python module.
+
+        If modname is None, look for the containing package
+        and construct an according module name.
+        The module will be put/looked up in sys.modules.
+        if ensuresyspath is True then the root dir for importing
+        the file (taking __init__.py files into account) will
+        be prepended to sys.path if it isn't there already.
+        If ensuresyspath=="append" the root dir will be appended
+        if it isn't already contained in sys.path.
+        if ensuresyspath is False no modification of syspath happens.
+
+        Special value of ensuresyspath=="importlib" is intended
+        purely for using in pytest, it is capable only of importing
+        separate .py files outside packages, e.g. for test suite
+        without any __init__.py file. It effectively allows having
+        same-named test modules in different places and offers
+        mild opt-in via this option. Note that it works only in
+        recent versions of python.
+        """
+        if not self.check():
+            raise error.ENOENT(self)
+
+        if ensuresyspath == "importlib":
+            if modname is None:
+                modname = self.purebasename
+            spec = importlib.util.spec_from_file_location(modname, str(self))
+            if spec is None or spec.loader is None:
+                raise ImportError(f"Can't find module {modname} at location {self!s}")
+            mod = importlib.util.module_from_spec(spec)
+            spec.loader.exec_module(mod)
+            return mod
+
+        pkgpath = None
+        if modname is None:
+            pkgpath = self.pypkgpath()
+            if pkgpath is not None:
+                pkgroot = pkgpath.dirpath()
+                names = self.new(ext="").relto(pkgroot).split(self.sep)
+                if names[-1] == "__init__":
+                    names.pop()
+                modname = ".".join(names)
+            else:
+                pkgroot = self.dirpath()
+                modname = self.purebasename
+
+            self._ensuresyspath(ensuresyspath, pkgroot)
+            __import__(modname)
+            mod = sys.modules[modname]
+            if self.basename == "__init__.py":
+                return mod  # we don't check anything as we might
+                # be in a namespace package ... too icky to check
+            modfile = mod.__file__
+            assert modfile is not None
+            if modfile[-4:] in (".pyc", ".pyo"):
+                modfile = modfile[:-1]
+            elif modfile.endswith("$py.class"):
+                modfile = modfile[:-9] + ".py"
+            if modfile.endswith(os.sep + "__init__.py"):
+                if self.basename != "__init__.py":
+                    modfile = modfile[:-12]
+            try:
+                issame = self.samefile(modfile)
+            except error.ENOENT:
+                issame = False
+            if not issame:
+                ignore = os.getenv("PY_IGNORE_IMPORTMISMATCH")
+                if ignore != "1":
+                    raise self.ImportMismatchError(modname, modfile, self)
+            return mod
+        else:
+            try:
+                return sys.modules[modname]
+            except KeyError:
+                # we have a custom modname, do a pseudo-import
+                import types
+
+                mod = types.ModuleType(modname)
+                mod.__file__ = str(self)
+                sys.modules[modname] = mod
+                try:
+                    with open(str(self), "rb") as f:
+                        exec(f.read(), mod.__dict__)
+                except BaseException:
+                    del sys.modules[modname]
+                    raise
+                return mod
+
+    def sysexec(self, *argv: os.PathLike[str], **popen_opts: Any) -> str:
+        """Return stdout text from executing a system child process,
+        where the 'self' path points to executable.
+        The process is directly invoked and not through a system shell.
+        """
+        from subprocess import PIPE
+        from subprocess import Popen
+
+        popen_opts.pop("stdout", None)
+        popen_opts.pop("stderr", None)
+        proc = Popen(
+            [str(self)] + [str(arg) for arg in argv],
+            **popen_opts,
+            stdout=PIPE,
+            stderr=PIPE,
+        )
+        stdout: str | bytes
+        stdout, stderr = proc.communicate()
+        ret = proc.wait()
+        if isinstance(stdout, bytes):
+            stdout = stdout.decode(sys.getdefaultencoding())
+        if ret != 0:
+            if isinstance(stderr, bytes):
+                stderr = stderr.decode(sys.getdefaultencoding())
+            raise RuntimeError(
+                ret,
+                ret,
+                str(self),
+                stdout,
+                stderr,
+            )
+        return stdout
+
+    @classmethod
+    def sysfind(cls, name, checker=None, paths=None):
+        """Return a path object found by looking at the systems
+        underlying PATH specification. If the checker is not None
+        it will be invoked to filter matching paths.  If a binary
+        cannot be found, None is returned
+        Note: This is probably not working on plain win32 systems
+        but may work on cygwin.
+        """
+        if isabs(name):
+            p = local(name)
+            if p.check(file=1):
+                return p
+        else:
+            if paths is None:
+                if iswin32:
+                    paths = os.environ["Path"].split(";")
+                    if "" not in paths and "." not in paths:
+                        paths.append(".")
+                    try:
+                        systemroot = os.environ["SYSTEMROOT"]
+                    except KeyError:
+                        pass
+                    else:
+                        paths = [
+                            path.replace("%SystemRoot%", systemroot) for path in paths
+                        ]
+                else:
+                    paths = os.environ["PATH"].split(":")
+            tryadd = []
+            if iswin32:
+                tryadd += os.environ["PATHEXT"].split(os.pathsep)
+            tryadd.append("")
+
+            for x in paths:
+                for addext in tryadd:
+                    p = local(x).join(name, abs=True) + addext
+                    try:
+                        if p.check(file=1):
+                            if checker:
+                                if not checker(p):
+                                    continue
+                            return p
+                    except error.EACCES:
+                        pass
+        return None
+
+    @classmethod
+    def _gethomedir(cls):
+        try:
+            x = os.environ["HOME"]
+        except KeyError:
+            try:
+                x = os.environ["HOMEDRIVE"] + os.environ["HOMEPATH"]
+            except KeyError:
+                return None
+        return cls(x)
+
+    # """
+    # special class constructors for local filesystem paths
+    # """
+    @classmethod
+    def get_temproot(cls):
+        """Return the system's temporary directory
+        (where tempfiles are usually created in)
+        """
+        import tempfile
+
+        return local(tempfile.gettempdir())
+
+    @classmethod
+    def mkdtemp(cls, rootdir=None):
+        """Return a Path object pointing to a fresh new temporary directory
+        (which we created ourselves).
+        """
+        import tempfile
+
+        if rootdir is None:
+            rootdir = cls.get_temproot()
+        path = error.checked_call(tempfile.mkdtemp, dir=str(rootdir))
+        return cls(path)
+
+    @classmethod
+    def make_numbered_dir(
+        cls, prefix="session-", rootdir=None, keep=3, lock_timeout=172800
+    ):  # two days
+        """Return unique directory with a number greater than the current
+        maximum one.  The number is assumed to start directly after prefix.
+        if keep is true directories with a number less than (maxnum-keep)
+        will be removed. If .lock files are used (lock_timeout non-zero),
+        algorithm is multi-process safe.
+        """
+        if rootdir is None:
+            rootdir = cls.get_temproot()
+
+        nprefix = prefix.lower()
+
+        def parse_num(path):
+            """Parse the number out of a path (if it matches the prefix)"""
+            nbasename = path.basename.lower()
+            if nbasename.startswith(nprefix):
+                try:
+                    return int(nbasename[len(nprefix) :])
+                except ValueError:
+                    pass
+
+        def create_lockfile(path):
+            """Exclusively create lockfile. Throws when failed"""
+            mypid = os.getpid()
+            lockfile = path.join(".lock")
+            if hasattr(lockfile, "mksymlinkto"):
+                lockfile.mksymlinkto(str(mypid))
+            else:
+                fd = error.checked_call(
+                    os.open, str(lockfile), os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o644
+                )
+                with os.fdopen(fd, "w") as f:
+                    f.write(str(mypid))
+            return lockfile
+
+        def atexit_remove_lockfile(lockfile):
+            """Ensure lockfile is removed at process exit"""
+            mypid = os.getpid()
+
+            def try_remove_lockfile():
+                # in a fork() situation, only the last process should
+                # remove the .lock, otherwise the other processes run the
+                # risk of seeing their temporary dir disappear.  For now
+                # we remove the .lock in the parent only (i.e. we assume
+                # that the children finish before the parent).
+                if os.getpid() != mypid:
+                    return
+                try:
+                    lockfile.remove()
+                except error.Error:
+                    pass
+
+            atexit.register(try_remove_lockfile)
+
+        # compute the maximum number currently in use with the prefix
+        lastmax = None
+        while True:
+            maxnum = -1
+            for path in rootdir.listdir():
+                num = parse_num(path)
+                if num is not None:
+                    maxnum = max(maxnum, num)
+
+            # make the new directory
+            try:
+                udir = rootdir.mkdir(prefix + str(maxnum + 1))
+                if lock_timeout:
+                    lockfile = create_lockfile(udir)
+                    atexit_remove_lockfile(lockfile)
+            except (error.EEXIST, error.ENOENT, error.EBUSY):
+                # race condition (1): another thread/process created the dir
+                #                     in the meantime - try again
+                # race condition (2): another thread/process spuriously acquired
+                #                     lock treating empty directory as candidate
+                #                     for removal - try again
+                # race condition (3): another thread/process tried to create the lock at
+                #                     the same time (happened in Python 3.3 on Windows)
+                # https://ci.appveyor.com/project/pytestbot/py/build/1.0.21/job/ffi85j4c0lqwsfwa
+                if lastmax == maxnum:
+                    raise
+                lastmax = maxnum
+                continue
+            break
+
+        def get_mtime(path):
+            """Read file modification time"""
+            try:
+                return path.lstat().mtime
+            except error.Error:
+                pass
+
+        garbage_prefix = prefix + "garbage-"
+
+        def is_garbage(path):
+            """Check if path denotes directory scheduled for removal"""
+            bn = path.basename
+            return bn.startswith(garbage_prefix)
+
+        # prune old directories
+        udir_time = get_mtime(udir)
+        if keep and udir_time:
+            for path in rootdir.listdir():
+                num = parse_num(path)
+                if num is not None and num <= (maxnum - keep):
+                    try:
+                        # try acquiring lock to remove directory as exclusive user
+                        if lock_timeout:
+                            create_lockfile(path)
+                    except (error.EEXIST, error.ENOENT, error.EBUSY):
+                        path_time = get_mtime(path)
+                        if not path_time:
+                            # assume directory doesn't exist now
+                            continue
+                        if abs(udir_time - path_time) < lock_timeout:
+                            # assume directory with lockfile exists
+                            # and lock timeout hasn't expired yet
+                            continue
+
+                    # path dir locked for exclusive use
+                    # and scheduled for removal to avoid another thread/process
+                    # treating it as a new directory or removal candidate
+                    garbage_path = rootdir.join(garbage_prefix + str(uuid.uuid4()))
+                    try:
+                        path.rename(garbage_path)
+                        garbage_path.remove(rec=1)
+                    except KeyboardInterrupt:
+                        raise
+                    except Exception:  # this might be error.Error, WindowsError ...
+                        pass
+                if is_garbage(path):
+                    try:
+                        path.remove(rec=1)
+                    except KeyboardInterrupt:
+                        raise
+                    except Exception:  # this might be error.Error, WindowsError ...
+                        pass
+
+        # make link...
+        try:
+            username = os.environ["USER"]  # linux, et al
+        except KeyError:
+            try:
+                username = os.environ["USERNAME"]  # windows
+            except KeyError:
+                username = "current"
+
+        src = str(udir)
+        dest = src[: src.rfind("-")] + "-" + username
+        try:
+            os.unlink(dest)
+        except OSError:
+            pass
+        try:
+            os.symlink(src, dest)
+        except (OSError, AttributeError, NotImplementedError):
+            pass
+
+        return udir
+
+
+def copymode(src, dest):
+    """Copy permission from src to dst."""
+    import shutil
+
+    shutil.copymode(src, dest)
+
+
+def copystat(src, dest):
+    """Copy permission,  last modification time,
+    last access time, and flags from src to dst."""
+    import shutil
+
+    shutil.copystat(str(src), str(dest))
+
+
+def copychunked(src, dest):
+    chunksize = 524288  # half a meg of bytes
+    fsrc = src.open("rb")
+    try:
+        fdest = dest.open("wb")
+        try:
+            while 1:
+                buf = fsrc.read(chunksize)
+                if not buf:
+                    break
+                fdest.write(buf)
+        finally:
+            fdest.close()
+    finally:
+        fsrc.close()
+
+
+def isimportable(name):
+    if name and (name[0].isalpha() or name[0] == "_"):
+        name = name.replace("_", "")
+        return not name or name.isalnum()
+
+
+local = LocalPath

vllm/lib/python3.10/site-packages/_pytest/assertion/__init__.py

@@ -0,0 +1,192 @@
+# mypy: allow-untyped-defs
+"""Support for presenting detailed information in failing assertions."""
+
+from __future__ import annotations
+
+import sys
+from typing import Any
+from typing import Generator
+from typing import TYPE_CHECKING
+
+from _pytest.assertion import rewrite
+from _pytest.assertion import truncate
+from _pytest.assertion import util
+from _pytest.assertion.rewrite import assertstate_key
+from _pytest.config import Config
+from _pytest.config import hookimpl
+from _pytest.config.argparsing import Parser
+from _pytest.nodes import Item
+
+
+if TYPE_CHECKING:
+    from _pytest.main import Session
+
+
+def pytest_addoption(parser: Parser) -> None:
+    group = parser.getgroup("debugconfig")
+    group.addoption(
+        "--assert",
+        action="store",
+        dest="assertmode",
+        choices=("rewrite", "plain"),
+        default="rewrite",
+        metavar="MODE",
+        help=(
+            "Control assertion debugging tools.\n"
+            "'plain' performs no assertion debugging.\n"
+            "'rewrite' (the default) rewrites assert statements in test modules"
+            " on import to provide assert expression information."
+        ),
+    )
+    parser.addini(
+        "enable_assertion_pass_hook",
+        type="bool",
+        default=False,
+        help="Enables the pytest_assertion_pass hook. "
+        "Make sure to delete any previously generated pyc cache files.",
+    )
+    Config._add_verbosity_ini(
+        parser,
+        Config.VERBOSITY_ASSERTIONS,
+        help=(
+            "Specify a verbosity level for assertions, overriding the main level. "
+            "Higher levels will provide more detailed explanation when an assertion fails."
+        ),
+    )
+
+
+def register_assert_rewrite(*names: str) -> None:
+    """Register one or more module names to be rewritten on import.
+
+    This function will make sure that this module or all modules inside
+    the package will get their assert statements rewritten.
+    Thus you should make sure to call this before the module is
+    actually imported, usually in your __init__.py if you are a plugin
+    using a package.
+
+    :param names: The module names to register.
+    """
+    for name in names:
+        if not isinstance(name, str):
+            msg = "expected module names as *args, got {0} instead"  # type: ignore[unreachable]
+            raise TypeError(msg.format(repr(names)))
+    for hook in sys.meta_path:
+        if isinstance(hook, rewrite.AssertionRewritingHook):
+            importhook = hook
+            break
+    else:
+        # TODO(typing): Add a protocol for mark_rewrite() and use it
+        # for importhook and for PytestPluginManager.rewrite_hook.
+        importhook = DummyRewriteHook()  # type: ignore
+    importhook.mark_rewrite(*names)
+
+
+class DummyRewriteHook:
+    """A no-op import hook for when rewriting is disabled."""
+
+    def mark_rewrite(self, *names: str) -> None:
+        pass
+
+
+class AssertionState:
+    """State for the assertion plugin."""
+
+    def __init__(self, config: Config, mode) -> None:
+        self.mode = mode
+        self.trace = config.trace.root.get("assertion")
+        self.hook: rewrite.AssertionRewritingHook | None = None
+
+
+def install_importhook(config: Config) -> rewrite.AssertionRewritingHook:
+    """Try to install the rewrite hook, raise SystemError if it fails."""
+    config.stash[assertstate_key] = AssertionState(config, "rewrite")
+    config.stash[assertstate_key].hook = hook = rewrite.AssertionRewritingHook(config)
+    sys.meta_path.insert(0, hook)
+    config.stash[assertstate_key].trace("installed rewrite import hook")
+
+    def undo() -> None:
+        hook = config.stash[assertstate_key].hook
+        if hook is not None and hook in sys.meta_path:
+            sys.meta_path.remove(hook)
+
+    config.add_cleanup(undo)
+    return hook
+
+
+def pytest_collection(session: Session) -> None:
+    # This hook is only called when test modules are collected
+    # so for example not in the managing process of pytest-xdist
+    # (which does not collect test modules).
+    assertstate = session.config.stash.get(assertstate_key, None)
+    if assertstate:
+        if assertstate.hook is not None:
+            assertstate.hook.set_session(session)
+
+
+@hookimpl(wrapper=True, tryfirst=True)
+def pytest_runtest_protocol(item: Item) -> Generator[None, object, object]:
+    """Setup the pytest_assertrepr_compare and pytest_assertion_pass hooks.
+
+    The rewrite module will use util._reprcompare if it exists to use custom
+    reporting via the pytest_assertrepr_compare hook.  This sets up this custom
+    comparison for the test.
+    """
+    ihook = item.ihook
+
+    def callbinrepr(op, left: object, right: object) -> str | None:
+        """Call the pytest_assertrepr_compare hook and prepare the result.
+
+        This uses the first result from the hook and then ensures the
+        following:
+        * Overly verbose explanations are truncated unless configured otherwise
+          (eg. if running in verbose mode).
+        * Embedded newlines are escaped to help util.format_explanation()
+          later.
+        * If the rewrite mode is used embedded %-characters are replaced
+          to protect later % formatting.
+
+        The result can be formatted by util.format_explanation() for
+        pretty printing.
+        """
+        hook_result = ihook.pytest_assertrepr_compare(
+            config=item.config, op=op, left=left, right=right
+        )
+        for new_expl in hook_result:
+            if new_expl:
+                new_expl = truncate.truncate_if_required(new_expl, item)
+                new_expl = [line.replace("\n", "\\n") for line in new_expl]
+                res = "\n~".join(new_expl)
+                if item.config.getvalue("assertmode") == "rewrite":
+                    res = res.replace("%", "%%")
+                return res
+        return None
+
+    saved_assert_hooks = util._reprcompare, util._assertion_pass
+    util._reprcompare = callbinrepr
+    util._config = item.config
+
+    if ihook.pytest_assertion_pass.get_hookimpls():
+
+        def call_assertion_pass_hook(lineno: int, orig: str, expl: str) -> None:
+            ihook.pytest_assertion_pass(item=item, lineno=lineno, orig=orig, expl=expl)
+
+        util._assertion_pass = call_assertion_pass_hook
+
+    try:
+        return (yield)
+    finally:
+        util._reprcompare, util._assertion_pass = saved_assert_hooks
+        util._config = None
+
+
+def pytest_sessionfinish(session: Session) -> None:
+    assertstate = session.config.stash.get(assertstate_key, None)
+    if assertstate:
+        if assertstate.hook is not None:
+            assertstate.hook.set_session(None)
+
+
+def pytest_assertrepr_compare(
+    config: Config, op: str, left: Any, right: Any
+) -> list[str] | None:
+    return util.assertrepr_compare(config=config, op=op, left=left, right=right)

vllm/lib/python3.10/site-packages/_pytest/assertion/rewrite.py

@@ -0,0 +1,1211 @@
+"""Rewrite assertion AST to produce nice error messages."""
+
+from __future__ import annotations
+
+import ast
+from collections import defaultdict
+import errno
+import functools
+import importlib.abc
+import importlib.machinery
+import importlib.util
+import io
+import itertools
+import marshal
+import os
+from pathlib import Path
+from pathlib import PurePath
+import struct
+import sys
+import tokenize
+import types
+from typing import Callable
+from typing import IO
+from typing import Iterable
+from typing import Iterator
+from typing import Sequence
+from typing import TYPE_CHECKING
+
+from _pytest._io.saferepr import DEFAULT_REPR_MAX_SIZE
+from _pytest._io.saferepr import saferepr
+from _pytest._version import version
+from _pytest.assertion import util
+from _pytest.config import Config
+from _pytest.main import Session
+from _pytest.pathlib import absolutepath
+from _pytest.pathlib import fnmatch_ex
+from _pytest.stash import StashKey
+
+
+# fmt: off
+from _pytest.assertion.util import format_explanation as _format_explanation  # noqa:F401, isort:skip
+# fmt:on
+
+if TYPE_CHECKING:
+    from _pytest.assertion import AssertionState
+
+
+class Sentinel:
+    pass
+
+
+assertstate_key = StashKey["AssertionState"]()
+
+# pytest caches rewritten pycs in pycache dirs
+PYTEST_TAG = f"{sys.implementation.cache_tag}-pytest-{version}"
+PYC_EXT = ".py" + (__debug__ and "c" or "o")
+PYC_TAIL = "." + PYTEST_TAG + PYC_EXT
+
+# Special marker that denotes we have just left a scope definition
+_SCOPE_END_MARKER = Sentinel()
+
+
+class AssertionRewritingHook(importlib.abc.MetaPathFinder, importlib.abc.Loader):
+    """PEP302/PEP451 import hook which rewrites asserts."""
+
+    def __init__(self, config: Config) -> None:
+        self.config = config
+        try:
+            self.fnpats = config.getini("python_files")
+        except ValueError:
+            self.fnpats = ["test_*.py", "*_test.py"]
+        self.session: Session | None = None
+        self._rewritten_names: dict[str, Path] = {}
+        self._must_rewrite: set[str] = set()
+        # flag to guard against trying to rewrite a pyc file while we are already writing another pyc file,
+        # which might result in infinite recursion (#3506)
+        self._writing_pyc = False
+        self._basenames_to_check_rewrite = {"conftest"}
+        self._marked_for_rewrite_cache: dict[str, bool] = {}
+        self._session_paths_checked = False
+
+    def set_session(self, session: Session | None) -> None:
+        self.session = session
+        self._session_paths_checked = False
+
+    # Indirection so we can mock calls to find_spec originated from the hook during testing
+    _find_spec = importlib.machinery.PathFinder.find_spec
+
+    def find_spec(
+        self,
+        name: str,
+        path: Sequence[str | bytes] | None = None,
+        target: types.ModuleType | None = None,
+    ) -> importlib.machinery.ModuleSpec | None:
+        if self._writing_pyc:
+            return None
+        state = self.config.stash[assertstate_key]
+        if self._early_rewrite_bailout(name, state):
+            return None
+        state.trace(f"find_module called for: {name}")
+
+        # Type ignored because mypy is confused about the `self` binding here.
+        spec = self._find_spec(name, path)  # type: ignore
+
+        if spec is None and path is not None:
+            # With --import-mode=importlib, PathFinder cannot find spec without modifying `sys.path`,
+            # causing inability to assert rewriting (#12659).
+            # At this point, try using the file path to find the module spec.
+            for _path_str in path:
+                spec = importlib.util.spec_from_file_location(name, _path_str)
+                if spec is not None:
+                    break
+
+        if (
+            # the import machinery could not find a file to import
+            spec is None
+            # this is a namespace package (without `__init__.py`)
+            # there's nothing to rewrite there
+            or spec.origin is None
+            # we can only rewrite source files
+            or not isinstance(spec.loader, importlib.machinery.SourceFileLoader)
+            # if the file doesn't exist, we can't rewrite it
+            or not os.path.exists(spec.origin)
+        ):
+            return None
+        else:
+            fn = spec.origin
+
+        if not self._should_rewrite(name, fn, state):
+            return None
+
+        return importlib.util.spec_from_file_location(
+            name,
+            fn,
+            loader=self,
+            submodule_search_locations=spec.submodule_search_locations,
+        )
+
+    def create_module(
+        self, spec: importlib.machinery.ModuleSpec
+    ) -> types.ModuleType | None:
+        return None  # default behaviour is fine
+
+    def exec_module(self, module: types.ModuleType) -> None:
+        assert module.__spec__ is not None
+        assert module.__spec__.origin is not None
+        fn = Path(module.__spec__.origin)
+        state = self.config.stash[assertstate_key]
+
+        self._rewritten_names[module.__name__] = fn
+
+        # The requested module looks like a test file, so rewrite it. This is
+        # the most magical part of the process: load the source, rewrite the
+        # asserts, and load the rewritten source. We also cache the rewritten
+        # module code in a special pyc. We must be aware of the possibility of
+        # concurrent pytest processes rewriting and loading pycs. To avoid
+        # tricky race conditions, we maintain the following invariant: The
+        # cached pyc is always a complete, valid pyc. Operations on it must be
+        # atomic. POSIX's atomic rename comes in handy.
+        write = not sys.dont_write_bytecode
+        cache_dir = get_cache_dir(fn)
+        if write:
+            ok = try_makedirs(cache_dir)
+            if not ok:
+                write = False
+                state.trace(f"read only directory: {cache_dir}")
+
+        cache_name = fn.name[:-3] + PYC_TAIL
+        pyc = cache_dir / cache_name
+        # Notice that even if we're in a read-only directory, I'm going
+        # to check for a cached pyc. This may not be optimal...
+        co = _read_pyc(fn, pyc, state.trace)
+        if co is None:
+            state.trace(f"rewriting {fn!r}")
+            source_stat, co = _rewrite_test(fn, self.config)
+            if write:
+                self._writing_pyc = True
+                try:
+                    _write_pyc(state, co, source_stat, pyc)
+                finally:
+                    self._writing_pyc = False
+        else:
+            state.trace(f"found cached rewritten pyc for {fn}")
+        exec(co, module.__dict__)
+
+    def _early_rewrite_bailout(self, name: str, state: AssertionState) -> bool:
+        """A fast way to get out of rewriting modules.
+
+        Profiling has shown that the call to PathFinder.find_spec (inside of
+        the find_spec from this class) is a major slowdown, so, this method
+        tries to filter what we're sure won't be rewritten before getting to
+        it.
+        """
+        if self.session is not None and not self._session_paths_checked:
+            self._session_paths_checked = True
+            for initial_path in self.session._initialpaths:
+                # Make something as c:/projects/my_project/path.py ->
+                #     ['c:', 'projects', 'my_project', 'path.py']
+                parts = str(initial_path).split(os.sep)
+                # add 'path' to basenames to be checked.
+                self._basenames_to_check_rewrite.add(os.path.splitext(parts[-1])[0])
+
+        # Note: conftest already by default in _basenames_to_check_rewrite.
+        parts = name.split(".")
+        if parts[-1] in self._basenames_to_check_rewrite:
+            return False
+
+        # For matching the name it must be as if it was a filename.
+        path = PurePath(*parts).with_suffix(".py")
+
+        for pat in self.fnpats:
+            # if the pattern contains subdirectories ("tests/**.py" for example) we can't bail out based
+            # on the name alone because we need to match against the full path
+            if os.path.dirname(pat):
+                return False
+            if fnmatch_ex(pat, path):
+                return False
+
+        if self._is_marked_for_rewrite(name, state):
+            return False
+
+        state.trace(f"early skip of rewriting module: {name}")
+        return True
+
+    def _should_rewrite(self, name: str, fn: str, state: AssertionState) -> bool:
+        # always rewrite conftest files
+        if os.path.basename(fn) == "conftest.py":
+            state.trace(f"rewriting conftest file: {fn!r}")
+            return True
+
+        if self.session is not None:
+            if self.session.isinitpath(absolutepath(fn)):
+                state.trace(f"matched test file (was specified on cmdline): {fn!r}")
+                return True
+
+        # modules not passed explicitly on the command line are only
+        # rewritten if they match the naming convention for test files
+        fn_path = PurePath(fn)
+        for pat in self.fnpats:
+            if fnmatch_ex(pat, fn_path):
+                state.trace(f"matched test file {fn!r}")
+                return True
+
+        return self._is_marked_for_rewrite(name, state)
+
+    def _is_marked_for_rewrite(self, name: str, state: AssertionState) -> bool:
+        try:
+            return self._marked_for_rewrite_cache[name]
+        except KeyError:
+            for marked in self._must_rewrite:
+                if name == marked or name.startswith(marked + "."):
+                    state.trace(f"matched marked file {name!r} (from {marked!r})")
+                    self._marked_for_rewrite_cache[name] = True
+                    return True
+
+            self._marked_for_rewrite_cache[name] = False
+            return False
+
+    def mark_rewrite(self, *names: str) -> None:
+        """Mark import names as needing to be rewritten.
+
+        The named module or package as well as any nested modules will
+        be rewritten on import.
+        """
+        already_imported = (
+            set(names).intersection(sys.modules).difference(self._rewritten_names)
+        )
+        for name in already_imported:
+            mod = sys.modules[name]
+            if not AssertionRewriter.is_rewrite_disabled(
+                mod.__doc__ or ""
+            ) and not isinstance(mod.__loader__, type(self)):
+                self._warn_already_imported(name)
+        self._must_rewrite.update(names)
+        self._marked_for_rewrite_cache.clear()
+
+    def _warn_already_imported(self, name: str) -> None:
+        from _pytest.warning_types import PytestAssertRewriteWarning
+
+        self.config.issue_config_time_warning(
+            PytestAssertRewriteWarning(
+                f"Module already imported so cannot be rewritten: {name}"
+            ),
+            stacklevel=5,
+        )
+
+    def get_data(self, pathname: str | bytes) -> bytes:
+        """Optional PEP302 get_data API."""
+        with open(pathname, "rb") as f:
+            return f.read()
+
+    if sys.version_info >= (3, 10):
+        if sys.version_info >= (3, 12):
+            from importlib.resources.abc import TraversableResources
+        else:
+            from importlib.abc import TraversableResources
+
+        def get_resource_reader(self, name: str) -> TraversableResources:
+            if sys.version_info < (3, 11):
+                from importlib.readers import FileReader
+            else:
+                from importlib.resources.readers import FileReader
+
+            return FileReader(types.SimpleNamespace(path=self._rewritten_names[name]))
+
+
+def _write_pyc_fp(
+    fp: IO[bytes], source_stat: os.stat_result, co: types.CodeType
+) -> None:
+    # Technically, we don't have to have the same pyc format as
+    # (C)Python, since these "pycs" should never be seen by builtin
+    # import. However, there's little reason to deviate.
+    fp.write(importlib.util.MAGIC_NUMBER)
+    # https://www.python.org/dev/peps/pep-0552/
+    flags = b"\x00\x00\x00\x00"
+    fp.write(flags)
+    # as of now, bytecode header expects 32-bit numbers for size and mtime (#4903)
+    mtime = int(source_stat.st_mtime) & 0xFFFFFFFF
+    size = source_stat.st_size & 0xFFFFFFFF
+    # "<LL" stands for 2 unsigned longs, little-endian.
+    fp.write(struct.pack("<LL", mtime, size))
+    fp.write(marshal.dumps(co))
+
+
+def _write_pyc(
+    state: AssertionState,
+    co: types.CodeType,
+    source_stat: os.stat_result,
+    pyc: Path,
+) -> bool:
+    proc_pyc = f"{pyc}.{os.getpid()}"
+    try:
+        with open(proc_pyc, "wb") as fp:
+            _write_pyc_fp(fp, source_stat, co)
+    except OSError as e:
+        state.trace(f"error writing pyc file at {proc_pyc}: errno={e.errno}")
+        return False
+
+    try:
+        os.replace(proc_pyc, pyc)
+    except OSError as e:
+        state.trace(f"error writing pyc file at {pyc}: {e}")
+        # we ignore any failure to write the cache file
+        # there are many reasons, permission-denied, pycache dir being a
+        # file etc.
+        return False
+    return True
+
+
+def _rewrite_test(fn: Path, config: Config) -> tuple[os.stat_result, types.CodeType]:
+    """Read and rewrite *fn* and return the code object."""
+    stat = os.stat(fn)
+    source = fn.read_bytes()
+    strfn = str(fn)
+    tree = ast.parse(source, filename=strfn)
+    rewrite_asserts(tree, source, strfn, config)
+    co = compile(tree, strfn, "exec", dont_inherit=True)
+    return stat, co
+
+
+def _read_pyc(
+    source: Path, pyc: Path, trace: Callable[[str], None] = lambda x: None
+) -> types.CodeType | None:
+    """Possibly read a pytest pyc containing rewritten code.
+
+    Return rewritten code if successful or None if not.
+    """
+    try:
+        fp = open(pyc, "rb")
+    except OSError:
+        return None
+    with fp:
+        try:
+            stat_result = os.stat(source)
+            mtime = int(stat_result.st_mtime)
+            size = stat_result.st_size
+            data = fp.read(16)
+        except OSError as e:
+            trace(f"_read_pyc({source}): OSError {e}")
+            return None
+        # Check for invalid or out of date pyc file.
+        if len(data) != (16):
+            trace(f"_read_pyc({source}): invalid pyc (too short)")
+            return None
+        if data[:4] != importlib.util.MAGIC_NUMBER:
+            trace(f"_read_pyc({source}): invalid pyc (bad magic number)")
+            return None
+        if data[4:8] != b"\x00\x00\x00\x00":
+            trace(f"_read_pyc({source}): invalid pyc (unsupported flags)")
+            return None
+        mtime_data = data[8:12]
+        if int.from_bytes(mtime_data, "little") != mtime & 0xFFFFFFFF:
+            trace(f"_read_pyc({source}): out of date")
+            return None
+        size_data = data[12:16]
+        if int.from_bytes(size_data, "little") != size & 0xFFFFFFFF:
+            trace(f"_read_pyc({source}): invalid pyc (incorrect size)")
+            return None
+        try:
+            co = marshal.load(fp)
+        except Exception as e:
+            trace(f"_read_pyc({source}): marshal.load error {e}")
+            return None
+        if not isinstance(co, types.CodeType):
+            trace(f"_read_pyc({source}): not a code object")
+            return None
+        return co
+
+
+def rewrite_asserts(
+    mod: ast.Module,
+    source: bytes,
+    module_path: str | None = None,
+    config: Config | None = None,
+) -> None:
+    """Rewrite the assert statements in mod."""
+    AssertionRewriter(module_path, config, source).run(mod)
+
+
+def _saferepr(obj: object) -> str:
+    r"""Get a safe repr of an object for assertion error messages.
+
+    The assertion formatting (util.format_explanation()) requires
+    newlines to be escaped since they are a special character for it.
+    Normally assertion.util.format_explanation() does this but for a
+    custom repr it is possible to contain one of the special escape
+    sequences, especially '\n{' and '\n}' are likely to be present in
+    JSON reprs.
+    """
+    if isinstance(obj, types.MethodType):
+        # for bound methods, skip redundant <bound method ...> information
+        return obj.__name__
+
+    maxsize = _get_maxsize_for_saferepr(util._config)
+    return saferepr(obj, maxsize=maxsize).replace("\n", "\\n")
+
+
+def _get_maxsize_for_saferepr(config: Config | None) -> int | None:
+    """Get `maxsize` configuration for saferepr based on the given config object."""
+    if config is None:
+        verbosity = 0
+    else:
+        verbosity = config.get_verbosity(Config.VERBOSITY_ASSERTIONS)
+    if verbosity >= 2:
+        return None
+    if verbosity >= 1:
+        return DEFAULT_REPR_MAX_SIZE * 10
+    return DEFAULT_REPR_MAX_SIZE
+
+
+def _format_assertmsg(obj: object) -> str:
+    r"""Format the custom assertion message given.
+
+    For strings this simply replaces newlines with '\n~' so that
+    util.format_explanation() will preserve them instead of escaping
+    newlines.  For other objects saferepr() is used first.
+    """
+    # reprlib appears to have a bug which means that if a string
+    # contains a newline it gets escaped, however if an object has a
+    # .__repr__() which contains newlines it does not get escaped.
+    # However in either case we want to preserve the newline.
+    replaces = [("\n", "\n~"), ("%", "%%")]
+    if not isinstance(obj, str):
+        obj = saferepr(obj, _get_maxsize_for_saferepr(util._config))
+        replaces.append(("\\n", "\n~"))
+
+    for r1, r2 in replaces:
+        obj = obj.replace(r1, r2)
+
+    return obj
+
+
+def _should_repr_global_name(obj: object) -> bool:
+    if callable(obj):
+        return False
+
+    try:
+        return not hasattr(obj, "__name__")
+    except Exception:
+        return True
+
+
+def _format_boolop(explanations: Iterable[str], is_or: bool) -> str:
+    explanation = "(" + (is_or and " or " or " and ").join(explanations) + ")"
+    return explanation.replace("%", "%%")
+
+
+def _call_reprcompare(
+    ops: Sequence[str],
+    results: Sequence[bool],
+    expls: Sequence[str],
+    each_obj: Sequence[object],
+) -> str:
+    for i, res, expl in zip(range(len(ops)), results, expls):
+        try:
+            done = not res
+        except Exception:
+            done = True
+        if done:
+            break
+    if util._reprcompare is not None:
+        custom = util._reprcompare(ops[i], each_obj[i], each_obj[i + 1])
+        if custom is not None:
+            return custom
+    return expl
+
+
+def _call_assertion_pass(lineno: int, orig: str, expl: str) -> None:
+    if util._assertion_pass is not None:
+        util._assertion_pass(lineno, orig, expl)
+
+
+def _check_if_assertion_pass_impl() -> bool:
+    """Check if any plugins implement the pytest_assertion_pass hook
+    in order not to generate explanation unnecessarily (might be expensive)."""
+    return True if util._assertion_pass else False
+
+
+UNARY_MAP = {ast.Not: "not %s", ast.Invert: "~%s", ast.USub: "-%s", ast.UAdd: "+%s"}
+
+BINOP_MAP = {
+    ast.BitOr: "|",
+    ast.BitXor: "^",
+    ast.BitAnd: "&",
+    ast.LShift: "<<",
+    ast.RShift: ">>",
+    ast.Add: "+",
+    ast.Sub: "-",
+    ast.Mult: "*",
+    ast.Div: "/",
+    ast.FloorDiv: "//",
+    ast.Mod: "%%",  # escaped for string formatting
+    ast.Eq: "==",
+    ast.NotEq: "!=",
+    ast.Lt: "<",
+    ast.LtE: "<=",
+    ast.Gt: ">",
+    ast.GtE: ">=",
+    ast.Pow: "**",
+    ast.Is: "is",
+    ast.IsNot: "is not",
+    ast.In: "in",
+    ast.NotIn: "not in",
+    ast.MatMult: "@",
+}
+
+
+def traverse_node(node: ast.AST) -> Iterator[ast.AST]:
+    """Recursively yield node and all its children in depth-first order."""
+    yield node
+    for child in ast.iter_child_nodes(node):
+        yield from traverse_node(child)
+
+
+@functools.lru_cache(maxsize=1)
+def _get_assertion_exprs(src: bytes) -> dict[int, str]:
+    """Return a mapping from {lineno: "assertion test expression"}."""
+    ret: dict[int, str] = {}
+
+    depth = 0
+    lines: list[str] = []
+    assert_lineno: int | None = None
+    seen_lines: set[int] = set()
+
+    def _write_and_reset() -> None:
+        nonlocal depth, lines, assert_lineno, seen_lines
+        assert assert_lineno is not None
+        ret[assert_lineno] = "".join(lines).rstrip().rstrip("\\")
+        depth = 0
+        lines = []
+        assert_lineno = None
+        seen_lines = set()
+
+    tokens = tokenize.tokenize(io.BytesIO(src).readline)
+    for tp, source, (lineno, offset), _, line in tokens:
+        if tp == tokenize.NAME and source == "assert":
+            assert_lineno = lineno
+        elif assert_lineno is not None:
+            # keep track of depth for the assert-message `,` lookup
+            if tp == tokenize.OP and source in "([{":
+                depth += 1
+            elif tp == tokenize.OP and source in ")]}":
+                depth -= 1
+
+            if not lines:
+                lines.append(line[offset:])
+                seen_lines.add(lineno)
+            # a non-nested comma separates the expression from the message
+            elif depth == 0 and tp == tokenize.OP and source == ",":
+                # one line assert with message
+                if lineno in seen_lines and len(lines) == 1:
+                    offset_in_trimmed = offset + len(lines[-1]) - len(line)
+                    lines[-1] = lines[-1][:offset_in_trimmed]
+                # multi-line assert with message
+                elif lineno in seen_lines:
+                    lines[-1] = lines[-1][:offset]
+                # multi line assert with escaped newline before message
+                else:
+                    lines.append(line[:offset])
+                _write_and_reset()
+            elif tp in {tokenize.NEWLINE, tokenize.ENDMARKER}:
+                _write_and_reset()
+            elif lines and lineno not in seen_lines:
+                lines.append(line)
+                seen_lines.add(lineno)
+
+    return ret
+
+
+class AssertionRewriter(ast.NodeVisitor):
+    """Assertion rewriting implementation.
+
+    The main entrypoint is to call .run() with an ast.Module instance,
+    this will then find all the assert statements and rewrite them to
+    provide intermediate values and a detailed assertion error.  See
+    http://pybites.blogspot.be/2011/07/behind-scenes-of-pytests-new-assertion.html
+    for an overview of how this works.
+
+    The entry point here is .run() which will iterate over all the
+    statements in an ast.Module and for each ast.Assert statement it
+    finds call .visit() with it.  Then .visit_Assert() takes over and
+    is responsible for creating new ast statements to replace the
+    original assert statement: it rewrites the test of an assertion
+    to provide intermediate values and replace it with an if statement
+    which raises an assertion error with a detailed explanation in
+    case the expression is false and calls pytest_assertion_pass hook
+    if expression is true.
+
+    For this .visit_Assert() uses the visitor pattern to visit all the
+    AST nodes of the ast.Assert.test field, each visit call returning
+    an AST node and the corresponding explanation string.  During this
+    state is kept in several instance attributes:
+
+    :statements: All the AST statements which will replace the assert
+       statement.
+
+    :variables: This is populated by .variable() with each variable
+       used by the statements so that they can all be set to None at
+       the end of the statements.
+
+    :variable_counter: Counter to create new unique variables needed
+       by statements.  Variables are created using .variable() and
+       have the form of "@py_assert0".
+
+    :expl_stmts: The AST statements which will be executed to get
+       data from the assertion.  This is the code which will construct
+       the detailed assertion message that is used in the AssertionError
+       or for the pytest_assertion_pass hook.
+
+    :explanation_specifiers: A dict filled by .explanation_param()
+       with %-formatting placeholders and their corresponding
+       expressions to use in the building of an assertion message.
+       This is used by .pop_format_context() to build a message.
+
+    :stack: A stack of the explanation_specifiers dicts maintained by
+       .push_format_context() and .pop_format_context() which allows
+       to build another %-formatted string while already building one.
+
+    :scope: A tuple containing the current scope used for variables_overwrite.
+
+    :variables_overwrite: A dict filled with references to variables
+       that change value within an assert. This happens when a variable is
+       reassigned with the walrus operator
+
+    This state, except the variables_overwrite,  is reset on every new assert
+    statement visited and used by the other visitors.
+    """
+
+    def __init__(
+        self, module_path: str | None, config: Config | None, source: bytes
+    ) -> None:
+        super().__init__()
+        self.module_path = module_path
+        self.config = config
+        if config is not None:
+            self.enable_assertion_pass_hook = config.getini(
+                "enable_assertion_pass_hook"
+            )
+        else:
+            self.enable_assertion_pass_hook = False
+        self.source = source
+        self.scope: tuple[ast.AST, ...] = ()
+        self.variables_overwrite: defaultdict[tuple[ast.AST, ...], dict[str, str]] = (
+            defaultdict(dict)
+        )
+
+    def run(self, mod: ast.Module) -> None:
+        """Find all assert statements in *mod* and rewrite them."""
+        if not mod.body:
+            # Nothing to do.
+            return
+
+        # We'll insert some special imports at the top of the module, but after any
+        # docstrings and __future__ imports, so first figure out where that is.
+        doc = getattr(mod, "docstring", None)
+        expect_docstring = doc is None
+        if doc is not None and self.is_rewrite_disabled(doc):
+            return
+        pos = 0
+        item = None
+        for item in mod.body:
+            if (
+                expect_docstring
+                and isinstance(item, ast.Expr)
+                and isinstance(item.value, ast.Constant)
+                and isinstance(item.value.value, str)
+            ):
+                doc = item.value.value
+                if self.is_rewrite_disabled(doc):
+                    return
+                expect_docstring = False
+            elif (
+                isinstance(item, ast.ImportFrom)
+                and item.level == 0
+                and item.module == "__future__"
+            ):
+                pass
+            else:
+                break
+            pos += 1
+        # Special case: for a decorated function, set the lineno to that of the
+        # first decorator, not the `def`. Issue #4984.
+        if isinstance(item, ast.FunctionDef) and item.decorator_list:
+            lineno = item.decorator_list[0].lineno
+        else:
+            lineno = item.lineno
+        # Now actually insert the special imports.
+        if sys.version_info >= (3, 10):
+            aliases = [
+                ast.alias("builtins", "@py_builtins", lineno=lineno, col_offset=0),
+                ast.alias(
+                    "_pytest.assertion.rewrite",
+                    "@pytest_ar",
+                    lineno=lineno,
+                    col_offset=0,
+                ),
+            ]
+        else:
+            aliases = [
+                ast.alias("builtins", "@py_builtins"),
+                ast.alias("_pytest.assertion.rewrite", "@pytest_ar"),
+            ]
+        imports = [
+            ast.Import([alias], lineno=lineno, col_offset=0) for alias in aliases
+        ]
+        mod.body[pos:pos] = imports
+
+        # Collect asserts.
+        self.scope = (mod,)
+        nodes: list[ast.AST | Sentinel] = [mod]
+        while nodes:
+            node = nodes.pop()
+            if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef, ast.ClassDef)):
+                self.scope = tuple((*self.scope, node))
+                nodes.append(_SCOPE_END_MARKER)
+            if node == _SCOPE_END_MARKER:
+                self.scope = self.scope[:-1]
+                continue
+            assert isinstance(node, ast.AST)
+            for name, field in ast.iter_fields(node):
+                if isinstance(field, list):
+                    new: list[ast.AST] = []
+                    for i, child in enumerate(field):
+                        if isinstance(child, ast.Assert):
+                            # Transform assert.
+                            new.extend(self.visit(child))
+                        else:
+                            new.append(child)
+                            if isinstance(child, ast.AST):
+                                nodes.append(child)
+                    setattr(node, name, new)
+                elif (
+                    isinstance(field, ast.AST)
+                    # Don't recurse into expressions as they can't contain
+                    # asserts.
+                    and not isinstance(field, ast.expr)
+                ):
+                    nodes.append(field)
+
+    @staticmethod
+    def is_rewrite_disabled(docstring: str) -> bool:
+        return "PYTEST_DONT_REWRITE" in docstring
+
+    def variable(self) -> str:
+        """Get a new variable."""
+        # Use a character invalid in python identifiers to avoid clashing.
+        name = "@py_assert" + str(next(self.variable_counter))
+        self.variables.append(name)
+        return name
+
+    def assign(self, expr: ast.expr) -> ast.Name:
+        """Give *expr* a name."""
+        name = self.variable()
+        self.statements.append(ast.Assign([ast.Name(name, ast.Store())], expr))
+        return ast.copy_location(ast.Name(name, ast.Load()), expr)
+
+    def display(self, expr: ast.expr) -> ast.expr:
+        """Call saferepr on the expression."""
+        return self.helper("_saferepr", expr)
+
+    def helper(self, name: str, *args: ast.expr) -> ast.expr:
+        """Call a helper in this module."""
+        py_name = ast.Name("@pytest_ar", ast.Load())
+        attr = ast.Attribute(py_name, name, ast.Load())
+        return ast.Call(attr, list(args), [])
+
+    def builtin(self, name: str) -> ast.Attribute:
+        """Return the builtin called *name*."""
+        builtin_name = ast.Name("@py_builtins", ast.Load())
+        return ast.Attribute(builtin_name, name, ast.Load())
+
+    def explanation_param(self, expr: ast.expr) -> str:
+        """Return a new named %-formatting placeholder for expr.
+
+        This creates a %-formatting placeholder for expr in the
+        current formatting context, e.g. ``%(py0)s``.  The placeholder
+        and expr are placed in the current format context so that it
+        can be used on the next call to .pop_format_context().
+        """
+        specifier = "py" + str(next(self.variable_counter))
+        self.explanation_specifiers[specifier] = expr
+        return "%(" + specifier + ")s"
+
+    def push_format_context(self) -> None:
+        """Create a new formatting context.
+
+        The format context is used for when an explanation wants to
+        have a variable value formatted in the assertion message.  In
+        this case the value required can be added using
+        .explanation_param().  Finally .pop_format_context() is used
+        to format a string of %-formatted values as added by
+        .explanation_param().
+        """
+        self.explanation_specifiers: dict[str, ast.expr] = {}
+        self.stack.append(self.explanation_specifiers)
+
+    def pop_format_context(self, expl_expr: ast.expr) -> ast.Name:
+        """Format the %-formatted string with current format context.
+
+        The expl_expr should be an str ast.expr instance constructed from
+        the %-placeholders created by .explanation_param().  This will
+        add the required code to format said string to .expl_stmts and
+        return the ast.Name instance of the formatted string.
+        """
+        current = self.stack.pop()
+        if self.stack:
+            self.explanation_specifiers = self.stack[-1]
+        keys: list[ast.expr | None] = [ast.Constant(key) for key in current.keys()]
+        format_dict = ast.Dict(keys, list(current.values()))
+        form = ast.BinOp(expl_expr, ast.Mod(), format_dict)
+        name = "@py_format" + str(next(self.variable_counter))
+        if self.enable_assertion_pass_hook:
+            self.format_variables.append(name)
+        self.expl_stmts.append(ast.Assign([ast.Name(name, ast.Store())], form))
+        return ast.Name(name, ast.Load())
+
+    def generic_visit(self, node: ast.AST) -> tuple[ast.Name, str]:
+        """Handle expressions we don't have custom code for."""
+        assert isinstance(node, ast.expr)
+        res = self.assign(node)
+        return res, self.explanation_param(self.display(res))
+
+    def visit_Assert(self, assert_: ast.Assert) -> list[ast.stmt]:
+        """Return the AST statements to replace the ast.Assert instance.
+
+        This rewrites the test of an assertion to provide
+        intermediate values and replace it with an if statement which
+        raises an assertion error with a detailed explanation in case
+        the expression is false.
+        """
+        if isinstance(assert_.test, ast.Tuple) and len(assert_.test.elts) >= 1:
+            import warnings
+
+            from _pytest.warning_types import PytestAssertRewriteWarning
+
+            # TODO: This assert should not be needed.
+            assert self.module_path is not None
+            warnings.warn_explicit(
+                PytestAssertRewriteWarning(
+                    "assertion is always true, perhaps remove parentheses?"
+                ),
+                category=None,
+                filename=self.module_path,
+                lineno=assert_.lineno,
+            )
+
+        self.statements: list[ast.stmt] = []
+        self.variables: list[str] = []
+        self.variable_counter = itertools.count()
+
+        if self.enable_assertion_pass_hook:
+            self.format_variables: list[str] = []
+
+        self.stack: list[dict[str, ast.expr]] = []
+        self.expl_stmts: list[ast.stmt] = []
+        self.push_format_context()
+        # Rewrite assert into a bunch of statements.
+        top_condition, explanation = self.visit(assert_.test)
+
+        negation = ast.UnaryOp(ast.Not(), top_condition)
+
+        if self.enable_assertion_pass_hook:  # Experimental pytest_assertion_pass hook
+            msg = self.pop_format_context(ast.Constant(explanation))
+
+            # Failed
+            if assert_.msg:
+                assertmsg = self.helper("_format_assertmsg", assert_.msg)
+                gluestr = "\n>assert "
+            else:
+                assertmsg = ast.Constant("")
+                gluestr = "assert "
+            err_explanation = ast.BinOp(ast.Constant(gluestr), ast.Add(), msg)
+            err_msg = ast.BinOp(assertmsg, ast.Add(), err_explanation)
+            err_name = ast.Name("AssertionError", ast.Load())
+            fmt = self.helper("_format_explanation", err_msg)
+            exc = ast.Call(err_name, [fmt], [])
+            raise_ = ast.Raise(exc, None)
+            statements_fail = []
+            statements_fail.extend(self.expl_stmts)
+            statements_fail.append(raise_)
+
+            # Passed
+            fmt_pass = self.helper("_format_explanation", msg)
+            orig = _get_assertion_exprs(self.source)[assert_.lineno]
+            hook_call_pass = ast.Expr(
+                self.helper(
+                    "_call_assertion_pass",
+                    ast.Constant(assert_.lineno),
+                    ast.Constant(orig),
+                    fmt_pass,
+                )
+            )
+            # If any hooks implement assert_pass hook
+            hook_impl_test = ast.If(
+                self.helper("_check_if_assertion_pass_impl"),
+                [*self.expl_stmts, hook_call_pass],
+                [],
+            )
+            statements_pass: list[ast.stmt] = [hook_impl_test]
+
+            # Test for assertion condition
+            main_test = ast.If(negation, statements_fail, statements_pass)
+            self.statements.append(main_test)
+            if self.format_variables:
+                variables: list[ast.expr] = [
+                    ast.Name(name, ast.Store()) for name in self.format_variables
+                ]
+                clear_format = ast.Assign(variables, ast.Constant(None))
+                self.statements.append(clear_format)
+
+        else:  # Original assertion rewriting
+            # Create failure message.
+            body = self.expl_stmts
+            self.statements.append(ast.If(negation, body, []))
+            if assert_.msg:
+                assertmsg = self.helper("_format_assertmsg", assert_.msg)
+                explanation = "\n>assert " + explanation
+            else:
+                assertmsg = ast.Constant("")
+                explanation = "assert " + explanation
+            template = ast.BinOp(assertmsg, ast.Add(), ast.Constant(explanation))
+            msg = self.pop_format_context(template)
+            fmt = self.helper("_format_explanation", msg)
+            err_name = ast.Name("AssertionError", ast.Load())
+            exc = ast.Call(err_name, [fmt], [])
+            raise_ = ast.Raise(exc, None)
+
+            body.append(raise_)
+
+        # Clear temporary variables by setting them to None.
+        if self.variables:
+            variables = [ast.Name(name, ast.Store()) for name in self.variables]
+            clear = ast.Assign(variables, ast.Constant(None))
+            self.statements.append(clear)
+        # Fix locations (line numbers/column offsets).
+        for stmt in self.statements:
+            for node in traverse_node(stmt):
+                if getattr(node, "lineno", None) is None:
+                    # apply the assertion location to all generated ast nodes without source location
+                    # and preserve the location of existing nodes or generated nodes with an correct location.
+                    ast.copy_location(node, assert_)
+        return self.statements
+
+    def visit_NamedExpr(self, name: ast.NamedExpr) -> tuple[ast.NamedExpr, str]:
+        # This method handles the 'walrus operator' repr of the target
+        # name if it's a local variable or _should_repr_global_name()
+        # thinks it's acceptable.
+        locs = ast.Call(self.builtin("locals"), [], [])
+        target_id = name.target.id
+        inlocs = ast.Compare(ast.Constant(target_id), [ast.In()], [locs])
+        dorepr = self.helper("_should_repr_global_name", name)
+        test = ast.BoolOp(ast.Or(), [inlocs, dorepr])
+        expr = ast.IfExp(test, self.display(name), ast.Constant(target_id))
+        return name, self.explanation_param(expr)
+
+    def visit_Name(self, name: ast.Name) -> tuple[ast.Name, str]:
+        # Display the repr of the name if it's a local variable or
+        # _should_repr_global_name() thinks it's acceptable.
+        locs = ast.Call(self.builtin("locals"), [], [])
+        inlocs = ast.Compare(ast.Constant(name.id), [ast.In()], [locs])
+        dorepr = self.helper("_should_repr_global_name", name)
+        test = ast.BoolOp(ast.Or(), [inlocs, dorepr])
+        expr = ast.IfExp(test, self.display(name), ast.Constant(name.id))
+        return name, self.explanation_param(expr)
+
+    def visit_BoolOp(self, boolop: ast.BoolOp) -> tuple[ast.Name, str]:
+        res_var = self.variable()
+        expl_list = self.assign(ast.List([], ast.Load()))
+        app = ast.Attribute(expl_list, "append", ast.Load())
+        is_or = int(isinstance(boolop.op, ast.Or))
+        body = save = self.statements
+        fail_save = self.expl_stmts
+        levels = len(boolop.values) - 1
+        self.push_format_context()
+        # Process each operand, short-circuiting if needed.
+        for i, v in enumerate(boolop.values):
+            if i:
+                fail_inner: list[ast.stmt] = []
+                # cond is set in a prior loop iteration below
+                self.expl_stmts.append(ast.If(cond, fail_inner, []))  # noqa: F821
+                self.expl_stmts = fail_inner
+                # Check if the left operand is a ast.NamedExpr and the value has already been visited
+                if (
+                    isinstance(v, ast.Compare)
+                    and isinstance(v.left, ast.NamedExpr)
+                    and v.left.target.id
+                    in [
+                        ast_expr.id
+                        for ast_expr in boolop.values[:i]
+                        if hasattr(ast_expr, "id")
+                    ]
+                ):
+                    pytest_temp = self.variable()
+                    self.variables_overwrite[self.scope][v.left.target.id] = v.left  # type:ignore[assignment]
+                    v.left.target.id = pytest_temp
+            self.push_format_context()
+            res, expl = self.visit(v)
+            body.append(ast.Assign([ast.Name(res_var, ast.Store())], res))
+            expl_format = self.pop_format_context(ast.Constant(expl))
+            call = ast.Call(app, [expl_format], [])
+            self.expl_stmts.append(ast.Expr(call))
+            if i < levels:
+                cond: ast.expr = res
+                if is_or:
+                    cond = ast.UnaryOp(ast.Not(), cond)
+                inner: list[ast.stmt] = []
+                self.statements.append(ast.If(cond, inner, []))
+                self.statements = body = inner
+        self.statements = save
+        self.expl_stmts = fail_save
+        expl_template = self.helper("_format_boolop", expl_list, ast.Constant(is_or))
+        expl = self.pop_format_context(expl_template)
+        return ast.Name(res_var, ast.Load()), self.explanation_param(expl)
+
+    def visit_UnaryOp(self, unary: ast.UnaryOp) -> tuple[ast.Name, str]:
+        pattern = UNARY_MAP[unary.op.__class__]
+        operand_res, operand_expl = self.visit(unary.operand)
+        res = self.assign(ast.copy_location(ast.UnaryOp(unary.op, operand_res), unary))
+        return res, pattern % (operand_expl,)
+
+    def visit_BinOp(self, binop: ast.BinOp) -> tuple[ast.Name, str]:
+        symbol = BINOP_MAP[binop.op.__class__]
+        left_expr, left_expl = self.visit(binop.left)
+        right_expr, right_expl = self.visit(binop.right)
+        explanation = f"({left_expl} {symbol} {right_expl})"
+        res = self.assign(
+            ast.copy_location(ast.BinOp(left_expr, binop.op, right_expr), binop)
+        )
+        return res, explanation
+
+    def visit_Call(self, call: ast.Call) -> tuple[ast.Name, str]:
+        new_func, func_expl = self.visit(call.func)
+        arg_expls = []
+        new_args = []
+        new_kwargs = []
+        for arg in call.args:
+            if isinstance(arg, ast.Name) and arg.id in self.variables_overwrite.get(
+                self.scope, {}
+            ):
+                arg = self.variables_overwrite[self.scope][arg.id]  # type:ignore[assignment]
+            res, expl = self.visit(arg)
+            arg_expls.append(expl)
+            new_args.append(res)
+        for keyword in call.keywords:
+            if isinstance(
+                keyword.value, ast.Name
+            ) and keyword.value.id in self.variables_overwrite.get(self.scope, {}):
+                keyword.value = self.variables_overwrite[self.scope][keyword.value.id]  # type:ignore[assignment]
+            res, expl = self.visit(keyword.value)
+            new_kwargs.append(ast.keyword(keyword.arg, res))
+            if keyword.arg:
+                arg_expls.append(keyword.arg + "=" + expl)
+            else:  # **args have `arg` keywords with an .arg of None
+                arg_expls.append("**" + expl)
+
+        expl = "{}({})".format(func_expl, ", ".join(arg_expls))
+        new_call = ast.copy_location(ast.Call(new_func, new_args, new_kwargs), call)
+        res = self.assign(new_call)
+        res_expl = self.explanation_param(self.display(res))
+        outer_expl = f"{res_expl}\n{{{res_expl} = {expl}\n}}"
+        return res, outer_expl
+
+    def visit_Starred(self, starred: ast.Starred) -> tuple[ast.Starred, str]:
+        # A Starred node can appear in a function call.
+        res, expl = self.visit(starred.value)
+        new_starred = ast.Starred(res, starred.ctx)
+        return new_starred, "*" + expl
+
+    def visit_Attribute(self, attr: ast.Attribute) -> tuple[ast.Name, str]:
+        if not isinstance(attr.ctx, ast.Load):
+            return self.generic_visit(attr)
+        value, value_expl = self.visit(attr.value)
+        res = self.assign(
+            ast.copy_location(ast.Attribute(value, attr.attr, ast.Load()), attr)
+        )
+        res_expl = self.explanation_param(self.display(res))
+        pat = "%s\n{%s = %s.%s\n}"
+        expl = pat % (res_expl, res_expl, value_expl, attr.attr)
+        return res, expl
+
+    def visit_Compare(self, comp: ast.Compare) -> tuple[ast.expr, str]:
+        self.push_format_context()
+        # We first check if we have overwritten a variable in the previous assert
+        if isinstance(
+            comp.left, ast.Name
+        ) and comp.left.id in self.variables_overwrite.get(self.scope, {}):
+            comp.left = self.variables_overwrite[self.scope][comp.left.id]  # type:ignore[assignment]
+        if isinstance(comp.left, ast.NamedExpr):
+            self.variables_overwrite[self.scope][comp.left.target.id] = comp.left  # type:ignore[assignment]
+        left_res, left_expl = self.visit(comp.left)
+        if isinstance(comp.left, (ast.Compare, ast.BoolOp)):
+            left_expl = f"({left_expl})"
+        res_variables = [self.variable() for i in range(len(comp.ops))]
+        load_names: list[ast.expr] = [ast.Name(v, ast.Load()) for v in res_variables]
+        store_names = [ast.Name(v, ast.Store()) for v in res_variables]
+        it = zip(range(len(comp.ops)), comp.ops, comp.comparators)
+        expls: list[ast.expr] = []
+        syms: list[ast.expr] = []
+        results = [left_res]
+        for i, op, next_operand in it:
+            if (
+                isinstance(next_operand, ast.NamedExpr)
+                and isinstance(left_res, ast.Name)
+                and next_operand.target.id == left_res.id
+            ):
+                next_operand.target.id = self.variable()
+                self.variables_overwrite[self.scope][left_res.id] = next_operand  # type:ignore[assignment]
+            next_res, next_expl = self.visit(next_operand)
+            if isinstance(next_operand, (ast.Compare, ast.BoolOp)):
+                next_expl = f"({next_expl})"
+            results.append(next_res)
+            sym = BINOP_MAP[op.__class__]
+            syms.append(ast.Constant(sym))
+            expl = f"{left_expl} {sym} {next_expl}"
+            expls.append(ast.Constant(expl))
+            res_expr = ast.copy_location(ast.Compare(left_res, [op], [next_res]), comp)
+            self.statements.append(ast.Assign([store_names[i]], res_expr))
+            left_res, left_expl = next_res, next_expl
+        # Use pytest.assertion.util._reprcompare if that's available.
+        expl_call = self.helper(
+            "_call_reprcompare",
+            ast.Tuple(syms, ast.Load()),
+            ast.Tuple(load_names, ast.Load()),
+            ast.Tuple(expls, ast.Load()),
+            ast.Tuple(results, ast.Load()),
+        )
+        if len(comp.ops) > 1:
+            res: ast.expr = ast.BoolOp(ast.And(), load_names)
+        else:
+            res = load_names[0]
+
+        return res, self.explanation_param(self.pop_format_context(expl_call))
+
+
+def try_makedirs(cache_dir: Path) -> bool:
+    """Attempt to create the given directory and sub-directories exist.
+
+    Returns True if successful or if it already exists.
+    """
+    try:
+        os.makedirs(cache_dir, exist_ok=True)
+    except (FileNotFoundError, NotADirectoryError, FileExistsError):
+        # One of the path components was not a directory:
+        # - we're in a zip file
+        # - it is a file
+        return False
+    except PermissionError:
+        return False
+    except OSError as e:
+        # as of now, EROFS doesn't have an equivalent OSError-subclass
+        #
+        # squashfuse_ll returns ENOSYS "OSError: [Errno 38] Function not
+        # implemented" for a read-only error
+        if e.errno in {errno.EROFS, errno.ENOSYS}:
+            return False
+        raise
+    return True
+
+
+def get_cache_dir(file_path: Path) -> Path:
+    """Return the cache directory to write .pyc files for the given .py file path."""
+    if sys.pycache_prefix:
+        # given:
+        #   prefix = '/tmp/pycs'
+        #   path = '/home/user/proj/test_app.py'
+        # we want:
+        #   '/tmp/pycs/home/user/proj'
+        return Path(sys.pycache_prefix) / Path(*file_path.parts[1:-1])
+    else:
+        # classic pycache directory
+        return file_path.parent / "__pycache__"

vllm/lib/python3.10/site-packages/_pytest/assertion/truncate.py

@@ -0,0 +1,117 @@
+"""Utilities for truncating assertion output.
+
+Current default behaviour is to truncate assertion explanations at
+terminal lines, unless running with an assertions verbosity level of at least 2 or running on CI.
+"""
+
+from __future__ import annotations
+
+from _pytest.assertion import util
+from _pytest.config import Config
+from _pytest.nodes import Item
+
+
+DEFAULT_MAX_LINES = 8
+DEFAULT_MAX_CHARS = 8 * 80
+USAGE_MSG = "use '-vv' to show"
+
+
+def truncate_if_required(
+    explanation: list[str], item: Item, max_length: int | None = None
+) -> list[str]:
+    """Truncate this assertion explanation if the given test item is eligible."""
+    if _should_truncate_item(item):
+        return _truncate_explanation(explanation)
+    return explanation
+
+
+def _should_truncate_item(item: Item) -> bool:
+    """Whether or not this test item is eligible for truncation."""
+    verbose = item.config.get_verbosity(Config.VERBOSITY_ASSERTIONS)
+    return verbose < 2 and not util.running_on_ci()
+
+
+def _truncate_explanation(
+    input_lines: list[str],
+    max_lines: int | None = None,
+    max_chars: int | None = None,
+) -> list[str]:
+    """Truncate given list of strings that makes up the assertion explanation.
+
+    Truncates to either 8 lines, or 640 characters - whichever the input reaches
+    first, taking the truncation explanation into account. The remaining lines
+    will be replaced by a usage message.
+    """
+    if max_lines is None:
+        max_lines = DEFAULT_MAX_LINES
+    if max_chars is None:
+        max_chars = DEFAULT_MAX_CHARS
+
+    # Check if truncation required
+    input_char_count = len("".join(input_lines))
+    # The length of the truncation explanation depends on the number of lines
+    # removed but is at least 68 characters:
+    # The real value is
+    # 64 (for the base message:
+    # '...\n...Full output truncated (1 line hidden), use '-vv' to show")'
+    # )
+    # + 1 (for plural)
+    # + int(math.log10(len(input_lines) - max_lines)) (number of hidden line, at least 1)
+    # + 3 for the '...' added to the truncated line
+    # But if there's more than 100 lines it's very likely that we're going to
+    # truncate, so we don't need the exact value using log10.
+    tolerable_max_chars = (
+        max_chars + 70  # 64 + 1 (for plural) + 2 (for '99') + 3 for '...'
+    )
+    # The truncation explanation add two lines to the output
+    tolerable_max_lines = max_lines + 2
+    if (
+        len(input_lines) <= tolerable_max_lines
+        and input_char_count <= tolerable_max_chars
+    ):
+        return input_lines
+    # Truncate first to max_lines, and then truncate to max_chars if necessary
+    truncated_explanation = input_lines[:max_lines]
+    truncated_char = True
+    # We reevaluate the need to truncate chars following removal of some lines
+    if len("".join(truncated_explanation)) > tolerable_max_chars:
+        truncated_explanation = _truncate_by_char_count(
+            truncated_explanation, max_chars
+        )
+    else:
+        truncated_char = False
+
+    truncated_line_count = len(input_lines) - len(truncated_explanation)
+    if truncated_explanation[-1]:
+        # Add ellipsis and take into account part-truncated final line
+        truncated_explanation[-1] = truncated_explanation[-1] + "..."
+        if truncated_char:
+            # It's possible that we did not remove any char from this line
+            truncated_line_count += 1
+    else:
+        # Add proper ellipsis when we were able to fit a full line exactly
+        truncated_explanation[-1] = "..."
+    return [
+        *truncated_explanation,
+        "",
+        f"...Full output truncated ({truncated_line_count} line"
+        f"{'' if truncated_line_count == 1 else 's'} hidden), {USAGE_MSG}",
+    ]
+
+
+def _truncate_by_char_count(input_lines: list[str], max_chars: int) -> list[str]:
+    # Find point at which input length exceeds total allowed length
+    iterated_char_count = 0
+    for iterated_index, input_line in enumerate(input_lines):
+        if iterated_char_count + len(input_line) > max_chars:
+            break
+        iterated_char_count += len(input_line)
+
+    # Create truncated explanation with modified final line
+    truncated_result = input_lines[:iterated_index]
+    final_line = input_lines[iterated_index]
+    if final_line:
+        final_line_truncate_point = max_chars - iterated_char_count
+        final_line = final_line[:final_line_truncate_point]
+    truncated_result.append(final_line)
+    return truncated_result