repo stringclasses 1 value | instance_id stringlengths 20 22 | problem_statement stringlengths 126 60.8k | merge_commit stringlengths 40 40 | base_commit stringlengths 40 40 |
|---|---|---|---|---|
python/cpython | python__cpython-116151 | # Update installers to Tcl/Tk 8.6.14
Tcl/Tk 8.6.14 is out today: https://sourceforge.net/p/tcl/mailman/tcl-core/thread/SA1PR09MB887585E09B30AE57F0E7F2E3865F2%40SA1PR09MB8875.namprd09.prod.outlook.com/#msg58743251
I will open a few PRs for these shortly: one here for the macOS installer, and others at cpython-source-deps for Windows:
https://github.com/python/cpython-source-deps/pull/33
https://github.com/python/cpython-source-deps/pull/34
There is still a known test failure with Tk 8.6.14 which I have neglected: gh-107262
<!-- gh-linked-prs -->
### Linked PRs
* gh-116151
* gh-117030
* gh-119847
* gh-119922
* gh-120396
<!-- /gh-linked-prs -->
| 4fa95c6ec392b9fc80ad720cc4a8bd2786fc2835 | 3cc5ae5c2c6e729ca2750ed490dad56faa7c342d |
python/cpython | python__cpython-116144 | # Race condition in pydoc._start_server
# Bug report
### Bug description:
There's a race condition in `pydoc._start_server` - when `_start_server()` returns, we should get an object with a valid `docserver` attribute (set [here](https://github.com/python/cpython/blob/0656509033948780e6703391daca773c779041f7/Lib/pydoc.py#L2507)). However, the function only checks that the `serving` attribute is truthy before returning ([here](https://github.com/python/cpython/blob/0656509033948780e6703391daca773c779041f7/Lib/pydoc.py#L2532)).
The race is triggered if setting `serving` to `True` [here](https://github.com/python/cpython/blob/0656509033948780e6703391daca773c779041f7/Lib/pydoc.py#L2513) happens before setting the `docserver` attribute [here](https://github.com/python/cpython/blob/0656509033948780e6703391daca773c779041f7/Lib/pydoc.py#L2507) -- we observed this happening frequently in the Cinder ASAN test suite (originally observed and fixed by @jbower).
The race can be forced to happen by forcing a context switch after setting `self.serving = True`:
```diff
diff --git a/Lib/pydoc.py b/Lib/pydoc.py
index b0193b4a851..117a1dc8369 100755
--- a/Lib/pydoc.py
+++ b/Lib/pydoc.py
@@ -2511,6 +2511,7 @@ def run(self):
def ready(self, server):
self.serving = True
+ time.sleep(0.1)
self.host = server.host
self.port = server.server_port
self.url = 'http://%s:%d/' % (self.host, self.port)
```
and running the `test_pydoc.PydocServerTest.test_server` test, which would fail and hang:
```
$ ./python.exe -m test test_pydoc -v -m 'test.test_pydoc.test_pydoc.PydocServerTest.test_server'
== CPython 3.13.0a4+ (heads/main-dirty:06565090339, Feb 29 2024, 11:49:21) [Clang 15.0.0 (clang-1500.1.0.2.5)]
== macOS-14.3.1-arm64-arm-64bit-Mach-O little-endian
== Python build: debug
== cwd: /Users/itamaro/work/pyexe/main-dbg/build/test_python_worker_66701æ
== CPU count: 12
== encodings: locale=UTF-8 FS=utf-8
== resources: all test resources are disabled, use -u option to unskip tests
Using random seed: 792156149
0:00:00 load avg: 5.34 Run 1 test sequentially
0:00:00 load avg: 5.34 [1/1] test_pydoc.test_pydoc
test_server (test.test_pydoc.test_pydoc.PydocServerTest.test_server) ... ERROR
test_server (test.test_pydoc.test_pydoc.PydocServerTest.test_server) ... ERROR
Warning -- threading_cleanup() failed to clean up threads in 1.0 seconds
Warning -- before: thread count=0, dangling=1
Warning -- after: thread count=1, dangling=2
Warning -- Dangling thread: <_MainThread(MainThread, started 7977835584)>
Warning -- Dangling thread: <ServerThread(Thread-1, started 6150828032)>
======================================================================
ERROR: test_server (test.test_pydoc.test_pydoc.PydocServerTest.test_server)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/itamaro/work/cpython/Lib/test/test_pydoc/test_pydoc.py", line 1823, in test_server
self.assertIn('localhost', serverthread.url)
^^^^^^^^^^^^^^^^
AttributeError: 'ServerThread' object has no attribute 'url'
======================================================================
ERROR: test_server (test.test_pydoc.test_pydoc.PydocServerTest.test_server)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/itamaro/work/cpython/Lib/test/test_pydoc/test_pydoc.py", line 1821, in <lambda>
lambda: serverthread.stop() if serverthread.serving else None
~~~~~~~~~~~~~~~~~^^
File "/Users/itamaro/work/cpython/Lib/pydoc.py", line 2521, in stop
self.docserver.quit = True
^^^^^^^^^^^^^^
AttributeError: 'ServerThread' object has no attribute 'docserver'
----------------------------------------------------------------------
Ran 1 test in 1.321s
FAILED (errors=2)
Warning -- threading._dangling was modified by test_pydoc.test_pydoc
Warning -- Before: {<weakref at 0x10499c280; to '_MainThread' at 0x102eb0a10>}
Warning -- After: {<weakref at 0x10550f3f0; to '_MainThread' at 0x102eb0a10>, <weakref at 0x10550f380; to 'ServerThread' at 0x1049b81f0>}
test test_pydoc.test_pydoc failed
test_pydoc.test_pydoc failed (2 errors)
== Tests result: FAILURE ==
1 test failed:
test_pydoc.test_pydoc
Total duration: 1.4 sec
Total tests: run=1 (filtered)
Total test files: run=1/1 (filtered) failed=1
Result: FAILURE
```
The race can be fixed by making sure the `docserver` attribute is also set before returning (PR incoming).
### CPython versions tested on:
3.8, 3.10, 3.12, CPython main branch
### Operating systems tested on:
Linux, macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-116144
* gh-116415
* gh-116416
<!-- /gh-linked-prs -->
| 02ee475ee3ce9468d44758df2cd79df9f0926303 | e800265aa1f3451855a2fc14fbafc4d89392e35c |
python/cpython | python__cpython-116130 | # JIT support for `aarch64-pc-windows-msvc`
# Feature or enhancement
I don't have hardware to test on yet, but the linked PR at least gets things building for WoA.
<!-- gh-linked-prs -->
### Linked PRs
* gh-116130
<!-- /gh-linked-prs -->
| ffed8d985b57a97def2ec40c61b71a22a2af1b48 | 981f27dcc4be8bc4824464c9d75f2ea6c868863f |
python/cpython | python__cpython-116350 | # Implement PEP 705 (TypedDict: Read-only items)
# Feature or enhancement
PEP-705 was just accepted. For the runtime implementation, we'll need:
- [ ] Add the new `ReadOnly` special form
- [ ] Adjust the implementation of `TypedDict`
- [ ] Update docs
The [typing-extensions implementation](https://github.com/python/typing_extensions/blob/main/src/typing_extensions.py) should provide a good baseline.
cc @alicederyn
<!-- gh-linked-prs -->
### Linked PRs
* gh-116350
<!-- /gh-linked-prs -->
| df4784b3b7519d137ca6a1aeb500ef59e24a7f9b | 3265087c07c261d1b5f526953682def334a52d56 |
python/cpython | python__cpython-116129 | # Implement PEP 696 (Type parameter defaults)
# Feature or enhancement
Implement PEP-696, which was just accepted.
Off the top of my head, we'll need the following:
- [ ] Grammar changes
- [ ] Changes in typing.py to type parameter application logic
- [ ] Documentation
I'll work on the first one but contributions on the other two are appreciated. The [implementation in typing-extensions](https://github.com/python/typing_extensions/blob/main/src/typing_extensions.py) can serve as an inspiration.
cc @Gobot1234
<!-- gh-linked-prs -->
### Linked PRs
* gh-116129
<!-- /gh-linked-prs -->
| ca269e58c290be8ca11bb728004ea842d9f85e3a | 852263e1086748492602a90347ecc0a3925e1dda |
python/cpython | python__cpython-116138 | # Add SBOM regeneration to PCBuild/build.bat
Allows for Windows contributors to regenerate the SBOM file, common with the `cpython-source-deps` SBOM.
<!-- gh-linked-prs -->
### Linked PRs
* gh-116138
* gh-118435
<!-- /gh-linked-prs -->
| 72dae53e09a5344bf4922d934a34a2fa48a11c86 | 9a75d56d5d9fdffb6ce9d83ede98486df238102d |
python/cpython | python__cpython-116117 | # Fix building CPython in windows-i686 with clang-cl
# Bug report
### Bug description:
```
In file included from $(SOURCE_ROOT)/python3/src/Modules/_blake2/blake2b_impl.c:30:
$(SOURCE_ROOT)/python3/src/Modules/_blake2/impl/blake2b.c(31,23): error: conflicting types for '_mm_set_epi64x'
static inline __m128i _mm_set_epi64x( const uint64_t u1, const uint64_t u0 )
^
$(TOOL_ROOT)/clang/14.0.6/include/emmintrin.h(3613,1): note: previous definition is here
_mm_set_epi64x(long long __q1, long long __q0)
^
1 error generated.
```
### CPython versions tested on:
3.12, CPython main branch
### Operating systems tested on:
Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-116117
* gh-116315
<!-- /gh-linked-prs -->
| 9b9e819b5116302cb4e471763feb2764eb17dde8 | 0adfa8482d369899e9963206a3307f423309e10c |
python/cpython | python__cpython-116371 | # ``test_asyncio.test_streams`` raises a ``ResourceWarning``
# Bug report
### Bug description:
```python
./python.exe -m test test_asyncio.test_streams
Using random seed: 4151462817
0:00:00 load avg: 28.75 Run 1 test sequentially
0:00:00 load avg: 28.75 [1/1] test_asyncio.test_streams
/Users/admin/Projects/cpython/Lib/asyncio/streams.py:410: ResourceWarning: unclosed <StreamWriter transport=<_SelectorSocketTransport closing fd=12 read=idle write=<idle, bufsize=0>> reader=<StreamReader transport=<_SelectorSocketTransport closing fd=12 read=idle write=<idle, bufsize=0>>>>
warnings.warn(f"unclosed {self!r}", ResourceWarning)
== Tests result: SUCCESS ==
1 test OK.
Total duration: 1.5 sec
Total tests: run=69
Total test files: run=1/1
Result: SUCCESS
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-116371
<!-- /gh-linked-prs -->
| 990a5f17d05214abe8aafedf8e6418a0fb5ffd50 | e205c5cd8f1a49d0ef126123312ee8a40d1416b6 |
python/cpython | python__cpython-116234 | # Revert __signature__ to being a cache, remove string and callable support
# Feature or enhancement
### Proposal:
#100039 modified the behavior of `__signature__` as used by the inspect.signature function :
- if the fields contains a Signature object, it is returned by the function (that doesn't change)
- if it contains None, it is ignored (that doesn't change)
- if it contains a string, it is converted to a signature (new)
- if it contains a callable, it is called with no parameters and expected to return either a signature object or a string which will be treated as the above (new)
- if it contains any other value, a TypeError is raised (this used to include strings and callables, it doesn't anymore)
**As for strings :**
The `__text_signature__` attribute's purpose is to pass a string to inform the signature. It's also only used for C-written functions, and iirc there's no way to use it in pure python : I understand that, but if the ability to specify a text override of inspect.signature must happen, then it should go through `__text_signature__` and not `__signature__`.
**As for callables :**
The Signature object qualifies, and the signature function inspects, callables. So, if when asked for the signature of a given callable you return another callable, it would make more sense to consider the second callable's signature as the signature of the first callable, than considering the second callable to _return_ the signature of the first. And why no parameters ? Why not pass the first callable as parameter ? Or the actual signature of the first callable ? That implementation raises a lot of questions of arbitrariness, which makes it a bad design in my opinion.
**As for the purpose :**
The use case, which was adding signature overrides to Enums, does not require any change to the inspect module, in fact a perfectly good alternative implementation can be found in #115937. It should also make for a considerably faster execution.
I suggest reverting these changes.
### Links to previous discussion of this feature:
This was discussed in #115937 and #116086 in which it was advised to separate the question of the implementation from that of the documentation.
<!-- gh-linked-prs -->
### Linked PRs
* gh-116234
<!-- /gh-linked-prs -->
| eafd14fbe0fd464b9d700f6d00137415193aa143 | b2a7272408593355c4c8e1d2ce9018cf96691bea |
python/cpython | python__cpython-116105 | # WindowsLoadTracker.__del__ fails if __init__ failed
In the `WindowsLoadTracker` test helper, when the user doesn't have access to
performance data, `__init__` will raise an exception before setting an
attribute that `__del__` currently relies on:
```
Warning -- Failed to create WindowsLoadTracker: [WinError 5] Access is denied
Warning -- Unraisable exception
Exception ignored in: <function WindowsLoadTracker.__del__ at 0x00000182B08DB950>
Traceback (most recent call last):
File "C:\Users\cpydev\cpython\Lib\test\libregrtest\win_utils.py", line 113, in __del__
if self._running is not None:
AttributeError: 'WindowsLoadTracker' object has no attribute '_running'
```
<!-- gh-linked-prs -->
### Linked PRs
* gh-116105
* gh-116120
* gh-116121
<!-- /gh-linked-prs -->
| 186fa9387669bcba6d3974a99c012c2b2c6fb4ce | fb2e17b642fc3089e4f98e4bf6b09dd362e6b27d |
python/cpython | python__cpython-116230 | # New warning: ``‘fmt’ may be used uninitialized in this function [-Wmaybe-uninitialized]``
# Bug report
### Bug description:
Popped up in https://github.com/python/cpython/pull/116101/files and https://github.com/python/cpython/pull/116096/files
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-116230
<!-- /gh-linked-prs -->
| cad3745b87ae85285a08ad8abd60cf10a59985b5 | fb5e0344e41788988171f31c6b8d4fd1a13b9041 |
python/cpython | python__cpython-116101 | # ``test_compile`` raises a ``DeprecationWarning``
# Bug report
### Bug description:
```python
./python.exe -m test test_compile
Using random seed: 123325304
0:00:00 load avg: 1.63 Run 1 test sequentially
0:00:00 load avg: 1.63 [1/1] test_compile
/Users/admin/Projects/cpython/Lib/test/test_compile.py:530: DeprecationWarning: If.__init__ missing 1 required positional argument: 'test'. This will become an error in Python 3.15.
self.assertRaises(TypeError, compile, _ast.If(), '<ast>', 'exec')
/Users/admin/Projects/cpython/Lib/test/test_compile.py:534: DeprecationWarning: BoolOp.__init__ missing 1 required positional argument: 'op'. This will become an error in Python 3.15.
ast.body = [_ast.BoolOp()]
== Tests result: SUCCESS ==
1 test OK.
Total duration: 1.7 sec
Total tests: run=158 skipped=1
Total test files: run=1/1
Result: SUCCES
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-116101
<!-- /gh-linked-prs -->
| 6a86030bc2519b4a6b055e0b47b9870c86db8588 | bea2795be2c08dde3830f987830414f3f12bc1eb |
python/cpython | python__cpython-116164 | # ``test_interpreters`` fails when running with ``-R 3:3`` argument
# Bug report
### Bug description:
```python
./python.exe -m test -R 3:3 test_interpreters
Using random seed: 922541786
0:00:00 load avg: 2.79 Run 1 test sequentially
0:00:00 load avg: 2.79 [1/1] test_interpreters
beginning 6 repetitions. Showing number of leaks (. for 0 or less, X for 10 or more)
123:456
XX. .../Include/object.h:1030: _Py_NegativeRefcount: Assertion failed: object has negative ref count
<object at 0x104847bc0 is freed>
Fatal Python error: _PyObject_AssertFailed: _PyObject_AssertFailed
Python runtime state: initialized
Current thread 0x00000001e11dd000 (most recent call first):
<no Python frame>
Extension modules: _xxsubinterpreters, _xxinterpqueues (total: 2)
zsh: abort ./python.exe -m test -R 3:3 test_interpreters
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-116164
<!-- /gh-linked-prs -->
| 2e94a6687c1a9750e9d2408a8dff0a422aeaf0e4 | d7ddd90308324340855ddb9cc8dda2c1ee3a5944 |
python/cpython | python__cpython-116178 | # ``test_frame`` fails when running with `-R 3:3` argument
# Bug report
### Bug description:
```python
./python.exe -m test -R 3:3 test_frame
Using random seed: 617081239
0:00:00 load avg: 38.69 Run 1 test sequentially
0:00:00 load avg: 38.69 [1/1] test_frame
beginning 6 repetitions. Showing number of leaks (. for 0 or less, X for 10 or more)
123:456
Xtest test_frame failed -- Traceback (most recent call last):
File "/Users/admin/Projects/cpython/Lib/test/test_frame.py", line 353, in test_sneaky_frame_object
self.assertIs(g.gi_frame, sneaky_frame_object)
~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: <frame at 0x1063d5020, file '/Users/admin/Projects/cpython/Lib/test/test_frame.py', line 318, code f> is not <frame at 0x10637b9b0, file '/Users/admin/Projects/cpython/Lib/test/test_frame.py', line 353, code test_sneaky_frame_object>
test_frame failed (1 failure)
== Tests result: FAILURE ==
1 test failed:
test_frame
Total duration: 146 ms
Total tests: run=21 failures=1
Total test files: run=1/1 failed=1
Result: FAILURE
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-116178
* gh-116687
<!-- /gh-linked-prs -->
| 7895a61168aad4565a1d953104c9ec620e7c588f | 339c8e1c13adc299a0e2e49c93067e7817692380 |
python/cpython | python__cpython-116089 | # (Auto-?) generate bottom checks in optimizer_cases.c.h
If the abstract interpreter ever pushes `bottom` (i.e., a contradition) to the stack, it might as well stop -- this indicates we're looking at unreachable code (e.g., after a deopt that always deopts, or a branch that always branches).
My original idea was to tweak the code generator to auto-generate such checks for the output stack effects (hand-waving a bit around array outputs, which are special anyways). But when I implemented that, I quickly found that most such pushes are freshly created symbols (e.g. `sym_new_const()` or `sym_new_undefined()`) that we already know cannot be `bottom`.
Also, there's a category of stack writes that evades easy detection, e.g. when `_GUARD_BOTH_INT` calls `sym_set_type(left, &PyLong_Type)` (and ditto for `right`), this is part of an opcode whose input and output stack effects are identical, and for such opcodes, the push operation is actually a write (without changing the stack pointer) that is generated on a different code path in the generator.
So no I'm considering to just hand-write bottom checks where they seem relevant. Perhaps we can change the `sym_set_...()` functions to return a `bool` result indicating whether they produced a `bottom` value, and change the (hand-written) code that calls these to emit something like
```c
if (sym_set_null(sym)) {
goto hit_bottom;
}
```
where `hit_bottom` is a new error label that prints a different debug message.
I'm still weighing my options though...
<!-- gh-linked-prs -->
### Linked PRs
* gh-116089
<!-- /gh-linked-prs -->
| 0656509033948780e6703391daca773c779041f7 | 3b6f4cadf19e6a4edd2cbbbc96a0a4024b395648 |
python/cpython | python__cpython-116076 | # test_external_inspection.py fails on QEMU builds
See https://github.com/python/cpython/pull/116062#issuecomment-1969922416 for details. Basically `get_stack_trace()` raises "OSError: Function not implemented" on some JIT builds (those with aarch64-unknown-linux in their name).
On Discord, @erlend-aasland suggests:
> The best fix would be to have some kind of feature detection when we build the _testexternalinspection extension module, so the build will fail if the target platform cannot support this kind of introspection. That will make test_external_inspection.py skip correctly. IMO.
This test was introduced by @pablogsal in gh-115774 (brand new), in response to issue gh-115773.
<!-- gh-linked-prs -->
### Linked PRs
* gh-116076
<!-- /gh-linked-prs -->
| 4d1d35b906010c6db15f54443a9701c20af1db2d | f484a2a7486d0b4c7c11901f6c668eb23b74e81f |
python/cpython | python__cpython-116058 | # `test_walk_above_recursion_limit` uses absolute limits
# Bug report
### Bug description:
`os.walk` and `Path.walk` both have a test verifying that they're not implemented recursively. However, their recursion limits are absolute rather than relative to the current frame. Since the test framework itself already consumes about 30 frames, it only takes a few extra frames to cause a spurious failure. This can easily happen when running the tests within another script, which happens in the Android testbed.
For example, if the limit in test_pathlib is reduced from 40 to 35:
```
======================================================================
ERROR: test_walk_above_recursion_limit (test.test_pathlib.test_pathlib.PosixPathTest.test_walk_above_recursion_limit)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/msmith/git/python/cpython/Lib/pathlib/__init__.py", line 241, in __str__
return self._str
^^^^^^^^^
AttributeError: 'PosixPath' object has no attribute '_str'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/msmith/git/python/cpython/Lib/pathlib/__init__.py", line 300, in drive
return self._drv
^^^^^^^^^
AttributeError: 'PosixPath' object has no attribute '_drv'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/msmith/git/python/cpython/Lib/test/test_pathlib/test_pathlib.py", line 1203, in test_walk_above_recursion_limit
list(base.walk())
~~~~^^^^^^^^^^^^^
File "/Users/msmith/git/python/cpython/Lib/pathlib/_abc.py", line 875, in walk
scandir_obj = path._scandir()
~~~~~~~~~~~~~^^
File "/Users/msmith/git/python/cpython/Lib/pathlib/__init__.py", line 588, in _scandir
return os.scandir(self)
~~~~~~~~~~^^^^^^
File "/Users/msmith/git/python/cpython/Lib/pathlib/__init__.py", line 177, in __fspath__
return str(self)
~~~^^^^^^
File "/Users/msmith/git/python/cpython/Lib/pathlib/__init__.py", line 243, in __str__
self._str = self._format_parsed_parts(self.drive, self.root,
^^^^^^^^^^
File "/Users/msmith/git/python/cpython/Lib/pathlib/__init__.py", line 302, in drive
self._drv, self._root, self._tail_cached = self._parse_path(self._raw_path)
^^^^^^^^^^^^^^
File "/Users/msmith/git/python/cpython/Lib/pathlib/__init__.py", line 293, in _raw_path
path = self.pathmod.join(*paths)
~~~~~~~~~~~~~~~~~^^^^^^^^
File "<frozen posixpath>", line 77, in join
RecursionError: maximum recursion depth exceeded
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
* macOS
* Android
<!-- gh-linked-prs -->
### Linked PRs
* gh-116058
<!-- /gh-linked-prs -->
| 2339e7cff745271f0e4a919573a347ab2bc1c2e9 | c5fa796619a8cae5a1a8a4a043d05a99adec713d |
python/cpython | python__cpython-116049 | # Span for invalid escape sequence in multiline strings is wrong
# Bug report
### Bug description:
```python
a = """
Invalid\ Escape
"""
```
When running with `PYTHONWARNINGS=error python3.13 example.py`, i get the correct error that there is an invalid escape sequence, but the error span is located at the beginning of the string, not at the location of the actual error:
```pytb
File "/home/konsti/example.py", line 1
a = """
^
SyntaxError: invalid escape sequence '\ '
```
Similarly, for docstrings, the opening quotes are marked, not the actual location:
```python
def f():
"""This function computes f.
Invalid\ Escape
"""
```
```pytb
$ PYTHONWARNINGS=error python3.13 example.py
File "/home/konsti/example.py", line 2
"""This function computes f.
^^^
SyntaxError: invalid escape sequence '\ '
```
This makes it look like the file is somehow corrupted or there is an encoding error rather than checking the actual docstring (https://github.com/astral-sh/uv/issues/1928).
`Python 3.13.0a1+`, installed with pyenv.
I'd expected this to have been reported before, but searching for "invalid escape sequence strings", "escape sequence span" and "SyntaxWarning location" i didn't find anything matching.
### CPython versions tested on:
3.13
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-116049
* gh-130065
* gh-130066
<!-- /gh-linked-prs -->
| 56eda256336310a08d4beb75b998488cb359444b | 49b11033bd87fb26eb4b74ba2451ed30b1af9780 |
python/cpython | python__cpython-116072 | # Enum creation from values fails for certain values.
# Bug report
### Bug description:
Hello,
I tried to define an enum with custom initializer and tuple values, akin to the [Planet example](https://docs.python.org/3/howto/enum.html#planet).
When instantiating this enum from values it works for some values (0, 1) but fails for others (1, 0).
```python
from enum import Enum
class Cardinal(Enum):
RIGHT = (1, 0)
UP = (0, 1)
LEFT = (-1, 0)
DOWN = (0, -1)
def __init__(self, x: int, y: int, /) -> None:
self.x = x
self.y = y
up = Cardinal(0, 1) # works
right = Cardinal(1, 0) # ValueError: 1 is not a valid Cardinal
right_ = Cardinal((1, 0)) # works
```
I'm not quite sure if I'm allowed to construct this enum from separate x and y parameters or if I need to pass a tuple.
Either way, it should either work for both (up and right) cases or fail for both cases.
### CPython versions tested on:
3.12
### Operating systems tested on:
Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-116072
* gh-116476
* gh-116508
* gh-116619
<!-- /gh-linked-prs -->
| 13ffd4bd9f529b6a5fe33741fbd57f14b4b80137 | b2d74cdbcd0b47bc938200969bb31e5b37dc11e1 |
python/cpython | python__cpython-116031 | # ``test_unparse`` raises a DeprecationWarning
# Bug report
### Bug description:
```python
./python.exe -m test test_unparse
Using random seed: 1839524422
0:00:00 load avg: 8.33 Run 1 test sequentially
0:00:00 load avg: 8.33 [1/1] test_unparse
/Users/admin/Projects/cpython/Lib/test/test_unparse.py:721: DeprecationWarning: Name.__init__ missing 1 required positional argument: 'ctx'. This will become an error in Python 3.15.
type_params=[ast.TypeVar("T", bound=ast.Name("int"))],
/Users/admin/Projects/cpython/Lib/test/test_unparse.py:379: DeprecationWarning: Name.__init__ missing 1 required positional argument: 'ctx'. This will become an error in Python 3.15.
ast.Name(id="test"),
/Users/admin/Projects/cpython/Lib/test/test_unparse.py:373: DeprecationWarning: Name.__init__ missing 1 required positional argument: 'ctx'. This will become an error in Python 3.15.
self.check_invalid(ast.Raise(exc=None, cause=ast.Name(id="X")))
== Tests result: SUCCESS ==
1 test OK.
Total duration: 1.9 sec
Total tests: run=69
Total test files: run=1/1
Result: SUCCESS
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-116031
<!-- /gh-linked-prs -->
| 3b63d0769f49171f53e9cecc686fa01a383bd4b1 | 1752b51012269eaa35f7a28f162d18479a4f72aa |
python/cpython | python__cpython-116340 | # New warnings: ` warning: unused function 'ensure_shared_on_read' [-Wunused-function]`
# Bug report
### Bug description:
Popped up during the build (`./configure --with-pydebug && make -j`):
```bash
Objects/dictobject.c:1233:1: warning: unused function 'ensure_shared_on_read' [-Wunused-function]
ensure_shared_on_read(PyDictObject *mp)
^
In file included from Objects/obmalloc.c:16:
In file included from Objects/mimalloc/static.c:23:
Objects/mimalloc/alloc.c:77:5: warning: static function 'mi_debug_fill' is used in an inline function with external linkage [-Wstatic-in-inline]
mi_debug_fill(page, block, MI_DEBUG_UNINIT, mi_page_usable_block_size(page));
^
Objects/mimalloc/alloc.c:30:13: note: 'mi_debug_fill' declared here
static void mi_debug_fill(mi_page_t* page, mi_block_t* block, int c, size_t size) {
...
Objects/dictobject.c:5032:9: warning: logical not is only applied to the left hand side of this comparison [-Wlogical-not-parentheses]
if (!dictiter_iternext_threadsafe(d, self, &value, NULL) == 0) {
^ ~~
Objects/dictobject.c:5032:9: note: add parentheses after the '!' to evaluate the comparison first
if (!dictiter_iternext_threadsafe(d, self, &value, NULL) == 0) {
^
( )
Objects/dictobject.c:5032:9: note: add parentheses around left hand side expression to silence this warning
if (!dictiter_iternext_threadsafe(d, self, &value, NULL) == 0) {
^
( )
Objects/dictobject.c:5155:9: warning: logical not is only applied to the left hand side of this comparison [-Wlogical-not-parentheses]
if (!dictiter_iternext_threadsafe(d, self, NULL, &value) == 0) {
^ ~~
Objects/dictobject.c:5155:9: note: add parentheses after the '!' to evaluate the comparison first
if (!dictiter_iternext_threadsafe(d, self, NULL, &value) == 0) {
^
( )
Objects/dictobject.c:5155:9: note: add parentheses around left hand side expression to silence this warning
if (!dictiter_iternext_threadsafe(d, self, NULL, &value) == 0) {
^
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-116340
<!-- /gh-linked-prs -->
| 58c7919d05a360f3437a204960cddbeb78a71dce | 88b5c665ee1624af1bc5097d3eb2af090b9cabed |
python/cpython | python__cpython-116027 | # macos-13 builds are failing
# Bug report
In both #105511 and #116025, the macos-13 builds fail with:
```
Error: The `brew link` step did not complete successfully
The formula built, but is not symlinked into /usr/local
Could not symlink bin/2to3
Target /usr/local/bin/2to3
already exists. You may want to remove it:
rm '/usr/local/bin/2to3'
To force the link and overwrite all conflicting files:
brew link --overwrite python@3.12
To list all files that would be deleted:
brew link --overwrite python@3.12 --dry-run
```
The failure first appears on the main branch after #115661 was merged, but that looks unlikely to be related, especially since the failure happens before we even start building CPython. I suspect something changed in the runner.
<!-- gh-linked-prs -->
### Linked PRs
* gh-116027
* gh-116157
* gh-116158
<!-- /gh-linked-prs -->
| 02beb9f0208d22fd8bd893e6e6ec813f7e51b235 | ed4dfd8825b49e16a0fcb9e67baf1b58bb8d438f |
python/cpython | python__cpython-116037 | # Omit optional fields from `ast.dump()`
# Feature or enhancement
### Proposal:
```python
>>> ast.dump(ast.arguments())
'arguments(posonlyargs=[], args=[], kwonlyargs=[], kw_defaults=[], defaults=[])'
```
After #105858, it would be nice if `ast.dump()` also didn't output optional fields that are set to None or an empty string, so that its output is more concise. This should make it easier to understand the structure of large ASTs where most fields are missing.
### Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
### Links to previous discussion of this feature:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-116037
<!-- /gh-linked-prs -->
| 692e902c742f577f9fc8ed81e60ed9dd6c994e1e | 7e87d30f1f30d39c3005e03195f3d7648b38a1e2 |
python/cpython | python__cpython-117046 | # Improve `repr()` of AST nodes
# Feature or enhancement
### Proposal:
I often use `ast.parse` in the terminal to explore what the AST looks like:
```
>>> ast.parse("x = 3")
<ast.Module object at 0x105450b50>
```
But I have to remember to use `ast.dump()` to get useful output:
```
>>> ast.dump(ast.parse("x = 3"))
"Module(body=[Assign(targets=[Name(id='x', ctx=Store())], value=Constant(value=3))], type_ignores=[])"
```
It would be nice if the default repr() of AST nodes was more like the output of `ast.dump()`, so it's easier to see at a glance how it works.
One concern would be around the size of the output:
```
>>> from pathlib import Path
>>> import typing
>>> typing_py = Path(typing.__file__).read_text()
>>> len(ast.dump(ast.parse(typing_py)))
304244
```
As a middle ground, we could limit the depth of the AST provided in the repr(), e.g. to 2 levels, and also the number of list elements provided.
The repr() of a module's AST might then look something like:
```
Module(body=[Expr(value=Constant(...)), ..., Assign(targets=[Name(...)], value=Constant(...))], type_ignores=[])
```
### Has this already been discussed elsewhere?
This is a minor feature, which does not need previous discussion elsewhere
### Links to previous discussion of this feature:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-117046
<!-- /gh-linked-prs -->
| 21d2a9ab2f4dcbf1be462d3b7f7a231a46bc1cb7 | f9fa6ba4f8d90ae12bc1f6a792d66903bb169ba8 |
python/cpython | python__cpython-116014 | # GetLastError() not preserved across GIL operations on Windows
# Bug report
Changes to TLS usage in 3.13 may cause the last error code to be reset when ensuring, checking or releasing the GIL. We need to preserve the value.
`PyGILState_Check` was already updated, but the other public APIs need the same update. Potentially some of our internal/public ones too. It might just be best to add it to the `PyThread_tss_*` functions.
<!-- gh-linked-prs -->
### Linked PRs
* gh-116014
<!-- /gh-linked-prs -->
| 9578288a3e5a7f42d1f3bec139c0c85b87775c90 | 647053fed182066d3b8c934fb0bf52ee48ff3911 |
python/cpython | python__cpython-116246 | # FAQ: Replace PEP 6 link with devguide
# Documentation
This FAQ entry:
https://docs.python.org/3/faq/general.html#how-does-the-python-version-numbering-scheme-work
Says:
> See PEP 6 for more information about bugfix releases.
But PEP 6 says:
> This PEP is obsolete. The current release policy is documented in the devguide. See also PEP 101 for mechanics of the release process.
Let's update the link to point to the devguide instead.
PEP 387 (Backwards Compatibility Policy) would be worth linking as well.
Are there any other PEP 6 references in the docs to update?
<!-- gh-linked-prs -->
### Linked PRs
* gh-116246
* gh-116286
* gh-116287
<!-- /gh-linked-prs -->
| 3383d6afa3e4454b237bca2ef856e0f79b5b30c1 | 4859ecb8609b51e2f6b8fb1b295e9ee0f83e1be6 |
python/cpython | python__cpython-116470 | # ``Tools/cases_generator/optimizer_generator`` CLI does not work without explicit arguments
# Bug report
### Bug description:
```python
python3.11 optimizer_generator.py
usage: optimizer_generator.py [-h] [-o OUTPUT] [-d] input ...
optimizer_generator.py: error: the following arguments are required: input, base
```
I think it should work as the other generators.
However, these lines suggests that it should work:
https://github.com/python/cpython/blob/686ec17f506cddd0b14a8aad5849c15ffc20ed46/Tools/cases_generator/optimizer_generator.py#L231-L233
cc @Fidget-Spinner
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-116470
<!-- /gh-linked-prs -->
| b2d74cdbcd0b47bc938200969bb31e5b37dc11e1 | 834bf57eb79e9bf383a7173fccda032f4c53f69b |
python/cpython | python__cpython-116013 | # Make the specializing interpreter thread-safe in `--disable-gil` builds
# Feature or enhancement
### Proposal:
In free-threaded builds, the specializing adaptive interpreter needs to be made thread-safe. We should start with a small PR to simply disable it in free-threaded builds, which will be correct but will incur a performance penalty. Then we can work out how to properly support specialization in a free-threaded build.
These two commits from Sam's nogil-3.12 branch can serve as inspiration:
1. [specialize: make specialization thread-safe
](https://github.com/colesbury/nogil-3.12/commit/7e7568672d)
2. [specialize: optimize for single-threaded programs](https://github.com/colesbury/nogil-3.12/commit/90d34f0d18)
There are two primary concerns to balance while implementing this functionality on `main`:
1. **Runtime overhead**: There should be no performance impact on normal builds, and minimal performance impact on single-threaded code running in free-threaded builds.
2. **Reducing code duplication/divergence**: We should come up with a design that is minimally disruptive to ongoing work on the specializing interpreter. It should be easy for other devs to keep the free-threaded build working without having to know too much about it.
### Has this already been discussed elsewhere?
I have already discussed this feature proposal on Discourse
### Links to previous discussion of this feature:
- https://peps.python.org/pep-0703/
- https://github.com/python/cpython/issues/108219
### Specialization Families
```[tasklist]
- [x] BINARY_OP
- [x] BINARY_SUBSCR - @corona10
- [x] CALL - @mpage
- [x] CALL_KW - @mpage
- [x] COMPARE_OP - @Yhg1s
- [x] CONTAINS_OP - @corona10
- [x] FOR_ITER - @Yhg1s
- [x] LOAD_ATTR - @mpage
- [x] LOAD_CONST
- [x] LOAD_GLOBAL - @mpage
- [x] LOAD_SUPER_ATTR - @nascheme
- [x] RESUME
- [x] SEND - @nascheme
- [x] STORE_ATTR - -@nascheme
- [x] STORE_SUBSCR - @colesbury
- [x] TO_BOOL - @corona10
- [x] UNPACK_SEQUENCE - @Eclips4
```
<!-- gh-linked-prs -->
### Linked PRs
* gh-116013
* gh-123926
* gh-124953
* gh-124997
* gh-126410
* gh-126414
* gh-126440
* gh-126450
* gh-126498
* gh-126515
* gh-126600
* gh-126607
* gh-126616
* gh-127030
* gh-127123
* gh-127128
* gh-127167
* gh-127169
* gh-127227
* gh-127426
* gh-127514
* gh-127711
* gh-127713
* gh-127737
* gh-127838
* gh-128164
* gh-128166
* gh-128637
* gh-128798
* gh-129365
* gh-131285
* gh-133824
* gh-134286
* gh-134348
* gh-136249
<!-- /gh-linked-prs -->
| 339c8e1c13adc299a0e2e49c93067e7817692380 | 2e94a6687c1a9750e9d2408a8dff0a422aeaf0e4 |
python/cpython | python__cpython-116019 | # Improve documentation for `pprint` module
# Documentation
The documentation for the `pprint` module could be improved in many respects:
- Most users will probably only ever need to use `pprint.pp()` or `pprint.pprint()`, but these are buried halfway down the module. It would be nice if these were the first things on the page.
- All examples in the documentation use `pprint.pprint()`, which has some unexpected behaviour. For example, it sorts dictionaries by default, which is somewhat unintuitive now that dictionaries maintain insertion order. I suggest we change the examples to use `pprint.pp()` instead, which has the more intuitive default of `sort_dicts=False`.
- Similarly, the docs for `pprint.pprint()` could explicitly call out that it has unintuitive defaults for things such as `sort_dicts` and link to `pprint.pp()`
- Some links in the module's documentation incorrectly point to the module itself (`pprint`) instead of the function `pprint.pprint()`.
These don't all necessarily need to be tackled in the same PR
<!-- gh-linked-prs -->
### Linked PRs
* gh-116019
* gh-116061
* gh-116064
* gh-116085
* gh-116104
* gh-116382
* gh-116383
* gh-116614
* gh-117196
* gh-117197
* gh-117401
* gh-117403
* gh-118146
* gh-121098
* gh-121099
<!-- /gh-linked-prs -->
| e205c5cd8f1a49d0ef126123312ee8a40d1416b6 | 72714c0266ce6d39c7c7fb63f617573b8f5a3cb2 |
python/cpython | python__cpython-116528 | # Disable building test modules that require `dlopen()` under WASI SDK 21
`_testimportmultiple`, `_testmultiphase`, `_testsinglephase`, `xxlimited`, `xxlimited_35` all get built under WASI SDK 21 thanks to `dlopen()`, but since that function doesn't work normally under WASI we should skip building them.
https://github.com/python/cpython/blob/6087315926fb185847a52559af063cc7d337d978/configure.ac#L7582-L7593
We could either update `Tools/wasm/wasi.py` to disable test modules, update `configure.ac` so they don't get compiled under WASI, or see if we can get them compiled in statically.
<!-- gh-linked-prs -->
### Linked PRs
* gh-116528
* gh-120316
<!-- /gh-linked-prs -->
| 8c094c3095feb4de2efebd00f67fb6cc3b2bc240 | e39795f2cbad5375536f4be6b3c3906f457992bf |
python/cpython | python__cpython-116754 | # Fix `test_importlib` under WASI SDK 21
# Bug report
### Bug description:
This very likely stems from `dlopen()` being available in WASI SDK 21 but not being usable dynamically as-is.
<details>
<summary>Test failure output</summary>
```
======================================================================
ERROR: test_is_package (test.test_importlib.extension.test_loader.Frozen_LoaderTests.test_is_package)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 86, in test_is_package
self.assertFalse(self.loader.is_package(util.EXTENSIONS.name))
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
File "<frozen importlib._bootstrap_external>", line 1322, in is_package
File "<frozen importlib._bootstrap_external>", line 134, in _path_split
File "<frozen importlib._bootstrap_external>", line 134, in <genexpr>
AttributeError: 'NoneType' object has no attribute 'rfind'
======================================================================
ERROR: test_load_module_API (test.test_importlib.extension.test_loader.Frozen_LoaderTests.test_load_module_API)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 48, in test_load_module_API
self.loader.load_module()
~~~~~~~~~~~~~~~~~~~~~~~^^
File "<frozen importlib._bootstrap_external>", line 668, in _check_name_wrapper
File "<frozen importlib._bootstrap_external>", line 1195, in load_module
File "<frozen importlib._bootstrap_external>", line 1019, in load_module
File "<frozen importlib._bootstrap>", line 531, in _load_module_shim
File "<frozen importlib._bootstrap>", line 673, in spec_from_loader
File "<frozen importlib._bootstrap_external>", line 875, in spec_from_file_location
File "<frozen importlib._bootstrap_external>", line 1322, in is_package
File "<frozen importlib._bootstrap_external>", line 134, in _path_split
File "<frozen importlib._bootstrap_external>", line 134, in <genexpr>
AttributeError: 'NoneType' object has no attribute 'rfind'
======================================================================
ERROR: test_module (test.test_importlib.extension.test_loader.Frozen_LoaderTests.test_module)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 55, in test_module
module = self.load_module(util.EXTENSIONS.name)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
File "/Lib/test/test_importlib/extension/test_loader.py", line 32, in load_module
return self.loader.load_module(fullname)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
File "<frozen importlib._bootstrap_external>", line 668, in _check_name_wrapper
File "<frozen importlib._bootstrap_external>", line 1195, in load_module
File "<frozen importlib._bootstrap_external>", line 1019, in load_module
File "<frozen importlib._bootstrap>", line 531, in _load_module_shim
File "<frozen importlib._bootstrap>", line 673, in spec_from_loader
File "<frozen importlib._bootstrap_external>", line 875, in spec_from_file_location
File "<frozen importlib._bootstrap_external>", line 1322, in is_package
File "<frozen importlib._bootstrap_external>", line 134, in _path_split
File "<frozen importlib._bootstrap_external>", line 134, in <genexpr>
AttributeError: 'NoneType' object has no attribute 'rfind'
======================================================================
ERROR: test_module_reuse (test.test_importlib.extension.test_loader.Frozen_LoaderTests.test_module_reuse)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 81, in test_module_reuse
module1 = self.load_module(util.EXTENSIONS.name)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
File "/Lib/test/test_importlib/extension/test_loader.py", line 32, in load_module
return self.loader.load_module(fullname)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
File "<frozen importlib._bootstrap_external>", line 668, in _check_name_wrapper
File "<frozen importlib._bootstrap_external>", line 1195, in load_module
File "<frozen importlib._bootstrap_external>", line 1019, in load_module
File "<frozen importlib._bootstrap>", line 531, in _load_module_shim
File "<frozen importlib._bootstrap>", line 673, in spec_from_loader
File "<frozen importlib._bootstrap_external>", line 875, in spec_from_file_location
File "<frozen importlib._bootstrap_external>", line 1322, in is_package
File "<frozen importlib._bootstrap_external>", line 134, in _path_split
File "<frozen importlib._bootstrap_external>", line 134, in <genexpr>
AttributeError: 'NoneType' object has no attribute 'rfind'
======================================================================
ERROR: test_is_package (test.test_importlib.extension.test_loader.Source_LoaderTests.test_is_package)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 86, in test_is_package
self.assertFalse(self.loader.is_package(util.EXTENSIONS.name))
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 1322, in is_package
file_name = _path_split(self.path)[1]
~~~~~~~~~~~^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 134, in _path_split
i = max(path.rfind(p) for p in path_separators)
~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 134, in <genexpr>
i = max(path.rfind(p) for p in path_separators)
^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'rfind'
======================================================================
ERROR: test_load_module_API (test.test_importlib.extension.test_loader.Source_LoaderTests.test_load_module_API)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 48, in test_load_module_API
self.loader.load_module()
~~~~~~~~~~~~~~~~~~~~~~~^^
File "/Lib/importlib/_bootstrap_external.py", line 668, in _check_name_wrapper
return method(self, name, *args, **kwargs)
~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 1195, in load_module
return super(FileLoader, self).load_module(fullname)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 1019, in load_module
return _bootstrap._load_module_shim(self, fullname)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap.py", line 531, in _load_module_shim
spec = spec_from_loader(fullname, self)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap.py", line 673, in spec_from_loader
return spec_from_file_location(name, loader=loader)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 875, in spec_from_file_location
is_package = loader.is_package(name)
~~~~~~~~~~~~~~~~~^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 1322, in is_package
file_name = _path_split(self.path)[1]
~~~~~~~~~~~^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 134, in _path_split
i = max(path.rfind(p) for p in path_separators)
~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 134, in <genexpr>
i = max(path.rfind(p) for p in path_separators)
^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'rfind'
======================================================================
ERROR: test_module (test.test_importlib.extension.test_loader.Source_LoaderTests.test_module)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 55, in test_module
module = self.load_module(util.EXTENSIONS.name)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
File "/Lib/test/test_importlib/extension/test_loader.py", line 32, in load_module
return self.loader.load_module(fullname)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 668, in _check_name_wrapper
return method(self, name, *args, **kwargs)
~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 1195, in load_module
return super(FileLoader, self).load_module(fullname)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 1019, in load_module
return _bootstrap._load_module_shim(self, fullname)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap.py", line 531, in _load_module_shim
spec = spec_from_loader(fullname, self)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap.py", line 673, in spec_from_loader
return spec_from_file_location(name, loader=loader)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 875, in spec_from_file_location
is_package = loader.is_package(name)
~~~~~~~~~~~~~~~~~^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 1322, in is_package
file_name = _path_split(self.path)[1]
~~~~~~~~~~~^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 134, in _path_split
i = max(path.rfind(p) for p in path_separators)
~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 134, in <genexpr>
i = max(path.rfind(p) for p in path_separators)
^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'rfind'
======================================================================
ERROR: test_module_reuse (test.test_importlib.extension.test_loader.Source_LoaderTests.test_module_reuse)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 81, in test_module_reuse
module1 = self.load_module(util.EXTENSIONS.name)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
File "/Lib/test/test_importlib/extension/test_loader.py", line 32, in load_module
return self.loader.load_module(fullname)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 668, in _check_name_wrapper
return method(self, name, *args, **kwargs)
~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 1195, in load_module
return super(FileLoader, self).load_module(fullname)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 1019, in load_module
return _bootstrap._load_module_shim(self, fullname)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap.py", line 531, in _load_module_shim
spec = spec_from_loader(fullname, self)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap.py", line 673, in spec_from_loader
return spec_from_file_location(name, loader=loader)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 875, in spec_from_file_location
is_package = loader.is_package(name)
~~~~~~~~~~~~~~~~~^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 1322, in is_package
file_name = _path_split(self.path)[1]
~~~~~~~~~~~^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 134, in _path_split
i = max(path.rfind(p) for p in path_separators)
~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Lib/importlib/_bootstrap_external.py", line 134, in <genexpr>
i = max(path.rfind(p) for p in path_separators)
^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'rfind'
======================================================================
FAIL: test_module (test.test_importlib.extension.test_finder.Frozen_FinderTests.test_module)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_finder.py", line 29, in test_module
self.assertTrue(self.find_spec(util.EXTENSIONS.name))
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: None is not true
======================================================================
FAIL: test_module (test.test_importlib.extension.test_finder.Source_FinderTests.test_module)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_finder.py", line 29, in test_module
self.assertTrue(self.find_spec(util.EXTENSIONS.name))
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: None is not true
======================================================================
FAIL: test_bad_modules (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_bad_modules)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_functionality (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_functionality)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_load_short_name (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_load_short_name)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_load_submodule (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_load_submodule)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_load_twice (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_load_twice)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_module (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_module)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_nonascii (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_nonascii)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_nonmodule (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_nonmodule)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_nonmodule_with_methods (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_nonmodule_with_methods)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_null_slots (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_null_slots)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_reload (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_reload)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_try_registration (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_try_registration)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_unloadable (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_unloadable)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_unloadable_nonascii (test.test_importlib.extension.test_loader.Frozen_MultiPhaseExtensionModuleTests.test_unloadable_nonascii)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_module (test.test_importlib.extension.test_loader.Frozen_SinglePhaseExtensionModuleTests.test_module)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 111, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_unloadable (test.test_importlib.extension.test_loader.Frozen_SinglePhaseExtensionModuleTests.test_unloadable)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 111, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_unloadable_nonascii (test.test_importlib.extension.test_loader.Frozen_SinglePhaseExtensionModuleTests.test_unloadable_nonascii)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 111, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_bad_modules (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_bad_modules)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_functionality (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_functionality)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_load_short_name (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_load_short_name)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_load_submodule (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_load_submodule)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_load_twice (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_load_twice)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_module (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_module)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_nonascii (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_nonascii)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_nonmodule (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_nonmodule)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_nonmodule_with_methods (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_nonmodule_with_methods)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_null_slots (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_null_slots)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_reload (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_reload)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_try_registration (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_try_registration)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_unloadable (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_unloadable)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_unloadable_nonascii (test.test_importlib.extension.test_loader.Source_MultiPhaseExtensionModuleTests.test_unloadable_nonascii)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 192, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_module (test.test_importlib.extension.test_loader.Source_SinglePhaseExtensionModuleTests.test_module)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 111, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_unloadable (test.test_importlib.extension.test_loader.Source_SinglePhaseExtensionModuleTests.test_unloadable)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 111, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_unloadable_nonascii (test.test_importlib.extension.test_loader.Source_SinglePhaseExtensionModuleTests.test_unloadable_nonascii)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/extension/test_loader.py", line 111, in setUp
assert self.spec
^^^^^^^^^
AssertionError
======================================================================
FAIL: test_spec_from_file_location_smsl_default (test.test_importlib.test_spec.Frozen_FactoryTests.test_spec_from_file_location_smsl_default)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/test_spec.py", line 629, in test_spec_from_file_location_smsl_default
self.assertEqual(spec.submodule_search_locations, [os.getcwd()])
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: Lists differ: [''] != ['/']
First differing element 0:
''
'/'
- ['']
+ ['/']
? +
======================================================================
FAIL: test_spec_from_file_location_smsl_empty (test.test_importlib.test_spec.Frozen_FactoryTests.test_spec_from_file_location_smsl_empty)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/test_spec.py", line 604, in test_spec_from_file_location_smsl_empty
self.assertEqual(spec.submodule_search_locations, [os.getcwd()])
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: Lists differ: [''] != ['/']
First differing element 0:
''
'/'
- ['']
+ ['/']
? +
======================================================================
FAIL: test_spec_from_loader_is_package_true_with_fileloader (test.test_importlib.test_spec.Frozen_FactoryTests.test_spec_from_loader_is_package_true_with_fileloader)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/test_spec.py", line 505, in test_spec_from_loader_is_package_true_with_fileloader
self.assertEqual(spec.submodule_search_locations, [os.getcwd()])
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: Lists differ: [''] != ['/']
First differing element 0:
''
'/'
- ['']
+ ['/']
? +
======================================================================
FAIL: test_spec_from_file_location_smsl_default (test.test_importlib.test_spec.Source_FactoryTests.test_spec_from_file_location_smsl_default)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/test_spec.py", line 629, in test_spec_from_file_location_smsl_default
self.assertEqual(spec.submodule_search_locations, [os.getcwd()])
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: Lists differ: [''] != ['/']
First differing element 0:
''
'/'
- ['']
+ ['/']
? +
======================================================================
FAIL: test_spec_from_file_location_smsl_empty (test.test_importlib.test_spec.Source_FactoryTests.test_spec_from_file_location_smsl_empty)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/test_spec.py", line 604, in test_spec_from_file_location_smsl_empty
self.assertEqual(spec.submodule_search_locations, [os.getcwd()])
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: Lists differ: [''] != ['/']
First differing element 0:
''
'/'
- ['']
+ ['/']
? +
======================================================================
FAIL: test_spec_from_loader_is_package_true_with_fileloader (test.test_importlib.test_spec.Source_FactoryTests.test_spec_from_loader_is_package_true_with_fileloader)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/test_spec.py", line 505, in test_spec_from_loader_is_package_true_with_fileloader
self.assertEqual(spec.submodule_search_locations, [os.getcwd()])
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: Lists differ: [''] != ['/']
First differing element 0:
''
'/'
- ['']
+ ['/']
? +
======================================================================
FAIL: test_cache_from_source_respects_pycache_prefix_relative (test.test_importlib.test_util.Frozen_PEP3147Tests.test_cache_from_source_respects_pycache_prefix_relative)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/test_util.py", line 578, in test_cache_from_source_respects_pycache_prefix_relative
self.assertEqual(
~~~~~~~~~~~~~~~~^
self.util.cache_from_source(path, optimization=''),
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
expect)
^^^^^^^
AssertionError: '/tmp/bytecode/foo/bar/baz/qux.cpython-313.pyc' != '/tmp/bytecode/./foo/bar/baz/qux.cpython-313.pyc'
- /tmp/bytecode/foo/bar/baz/qux.cpython-313.pyc
+ /tmp/bytecode/./foo/bar/baz/qux.cpython-313.pyc
? ++
======================================================================
FAIL: test_cache_from_source_respects_pycache_prefix_relative (test.test_importlib.test_util.Source_PEP3147Tests.test_cache_from_source_respects_pycache_prefix_relative)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Lib/test/test_importlib/test_util.py", line 578, in test_cache_from_source_respects_pycache_prefix_relative
self.assertEqual(
~~~~~~~~~~~~~~~~^
self.util.cache_from_source(path, optimization=''),
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
expect)
^^^^^^^
AssertionError: '/tmp/bytecode/foo/bar/baz/qux.cpython-313.pyc' != '/tmp/bytecode/./foo/bar/baz/qux.cpython-313.pyc'
- /tmp/bytecode/foo/bar/baz/qux.cpython-313.pyc
+ /tmp/bytecode/./foo/bar/baz/qux.cpython-313.pyc
? ++
```
</details>
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Other
<!-- gh-linked-prs -->
### Linked PRs
* gh-116754
* gh-116759
* gh-116762
<!-- /gh-linked-prs -->
| 61733a2fb9dc36d2246d922146a3462a2248832d | 5ff012a4495060fe9f53ed034c90033e7eafb780 |
python/cpython | python__cpython-116228 | # Turn off `preadv()`, `readv()`, `pwritev()`, and `writev()` under WASI
# Bug report
### Bug description:
The POSIX functions `preadv()`, `readv()`, `pwritev()`, and `writev()` don't work as expected under [WASI 0.2 on wasmtime](https://github.com/bytecodealliance/wasmtime/issues/7830). Since there are no plans to change that as their semantics are still POSIX-compliant, we should turn them off for WASI via https://github.com/python/cpython/blob/main/Tools/wasm/config.site-wasm32-wasi .
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Other
<!-- gh-linked-prs -->
### Linked PRs
* gh-116228
* gh-116231
* gh-116232
<!-- /gh-linked-prs -->
| 5dc8c84d397110f9edfa56793ad8887b1f176d79 | cad3745b87ae85285a08ad8abd60cf10a59985b5 |
python/cpython | python__cpython-116516 | # Add WASI to CI
I asked if anyone had objections at https://discuss.python.org/t/adding-wasi-to-ci/46481 and no one had any. The biggest question will be how to install/cache WASI SDK for faster runs.
This will also only be on `main` as it's the only branch to reach tier 2.
<!-- gh-linked-prs -->
### Linked PRs
* gh-116516
<!-- /gh-linked-prs -->
| 05070f40bbc3384c36c8b3dab76345ba92098d42 | 113053a070ba753101f73553ef6435c5c6c9f3f7 |
python/cpython | python__cpython-115963 | # Add name and mode attributes to compressed file-like objects
# Feature or enhancement
Regular file objects returned by the `open()` building have `name` and `name` and `mode` attributes. Some code may use these optional attributes for different purposes, for example to distinguish readable files from writable files, binary files from text files, or just for formatting the repr or error messages. For example:
* https://github.com/python/cpython/blob/5a832922130908994d313b56a3345ff410a0e11a/Lib/tarfile.py#L1666
* https://github.com/python/cpython/blob/5a832922130908994d313b56a3345ff410a0e11a/Lib/tarfile.py#L1669
* https://github.com/python/cpython/blob/5a832922130908994d313b56a3345ff410a0e11a/Lib/socket.py#L455
* https://github.com/python/cpython/blob/5a832922130908994d313b56a3345ff410a0e11a/Lib/gzip.py#L201
* https://github.com/python/cpython/blob/5a832922130908994d313b56a3345ff410a0e11a/Lib/asyncio/base_events.py#L982
* https://github.com/python/cpython/blob/5a832922130908994d313b56a3345ff410a0e11a/Lib/wave.py#L654
There are several file-like objects in compressing modules `gzip`, `bz2` and `lama` and archiving modules `zipfile` and `tarfile`. They usually implement the raw or buffered file protocols from `io`, but not always have `name` and `mode` attributes, and when they have, they not always have common semantic.
`GzipFile`, unlike to `BZ2File` and `LZMAFile`, has `name` and `mode` attributes, but `mode` is an integer, that confuses `tarfile` (see #62775).
`ZipExtFile` has the `mode` attribute which is always `'r'`. It is a legacy from Python 2, when it could also be `'U'` or `'rU'` for files with universal newlines. But this mode was removed long time ago, and since it is a binary file, its mode should be `'rb'`.
See also #68446, #91373, #91374. I opened this issue because consider it all the parts of larger image.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115963
* gh-116032
* gh-116036
* gh-116039
<!-- /gh-linked-prs -->
| e72576c48b8be1e4f22c2f387f9769efa073c5be | 02beb9f0208d22fd8bd893e6e6ec813f7e51b235 |
python/cpython | python__cpython-116009 | # asyncio.TaskGroup does not close unawaited coroutines
# Bug report
### Bug description:
Consider the following code:
```python
import asyncio
async def wait_and_raise():
await asyncio.sleep(0.5)
raise RuntimeError(1)
async def wait_and_start(tg):
try:
await asyncio.sleep(1)
finally:
try:
tg.create_task(asyncio.sleep(1))
except RuntimeError as e:
print(f"wait_and_start() caught {e!r}")
async def main():
try:
async with asyncio.TaskGroup() as tg:
tg.create_task(wait_and_start(tg))
tg.create_task(wait_and_raise())
except Exception as e:
print(f"main() caught {e!r}")
try:
tg.create_task(asyncio.sleep(1))
except RuntimeError as e:
print(f"main() caught {e!r}")
asyncio.run(main())
```
This gives the following output
```
wait_and_start() caught RuntimeError('TaskGroup <TaskGroup tasks=1 errors=1 cancelling> is shutting down')
C:\code\taskgrouptest.py:16: RuntimeWarning: coroutine 'sleep' was never awaited
print(f"wait_and_start() caught {e!r}")
RuntimeWarning: Enable tracemalloc to get the object allocation traceback
main() caught ExceptionGroup('unhandled errors in a TaskGroup', [RuntimeError(1)])
main() caught RuntimeError('TaskGroup <TaskGroup cancelling> is finished')
C:\code\taskgrouptest.py:29: RuntimeWarning: coroutine 'sleep' was never awaited
print(f"main() caught {e!r}")
RuntimeWarning: Enable tracemalloc to get the object allocation traceback
```
Arguably, when you call `tg.create_task()` on a task group that is shutting down or has finished, the calling code "knows" about the error because it gets a `RuntimeError` exception (as you can see above), so there is no need to get a warning about a coroutine that was not awaited. So, when a `TaskGroup` encounters this situation, it should close the coroutine before raising the error.
The other argument would be that this still represents a design mistake so should still get the warning. I can see both points of view but I'm raising this issue so a conscious decision can be made.
For comparison, when you do this on a [Trio Nursery](https://trio.readthedocs.io/en/stable/reference-core.html#nurseries-and-spawning) or [AnyIO TaskGroup](https://anyio.readthedocs.io/en/stable/tasks.html#differences-with-asyncio-taskgroup) that has already closed, a coroutine never even gets created in the first place, because you use a different syntax (`nursery.start_soon(foo, 1, 2)` rather than `tg.create_task(foo(1, 2))`), so it's a lot like if asyncio were to close the coroutine. The situation is a bit different for a nursery that is shutting down: then it runs till the first (unshielded) `await` and is cancelled at that point, which is possible because they use level-based cancellation rather than edge-based cancellation.
### CPython versions tested on:
3.12
### Operating systems tested on:
Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-116009
<!-- /gh-linked-prs -->
| ce0ae1d784871085059a415aa589d9bd16ea8301 | 7114cf20c015b99123b32c1ba4f5475b7a6c3a13 |
python/cpython | python__cpython-115944 | # `AcquirerProxy` object has no attribute `locked`
# Bug report
### Bug description:
According to the documentation, both [multiprocessing.Manager.Lock](https://docs.python.org/3.12/library/multiprocessing.html#multiprocessing.managers.SyncManager.Lock) and [RLock](https://docs.python.org/3.12/library/multiprocessing.html#multiprocessing.managers.SyncManager.RLock) should be the equivalent of an [threading.Lock](https://docs.python.org/3.12/library/threading.html#threading.Lock) and [RLock](https://docs.python.org/3.12/library/threading.html#threading.RLock), but the underlying [AcquirerProxy](https://github.com/python/cpython/blob/79061af448ada100a8c038beae927fb1debb2a64/Lib/multiprocessing/managers.py#L1047) is missing the implementation of the `.locked()` method to query the state of the lock.
E.g.
```python
from multiprocessing import Manager
from threading import Lock
if __name__ == "__main__":
lock_th = Lock()
lock_th.locked() # this one works
with Manager() as manager:
lock_man = manager.Lock()
lock_man.locked() # this throws an "AttributeError: 'AcquirerProxy' object has no attribute 'locked'"
```
### CPython versions tested on:
3.11, 3.12
### Operating systems tested on:
Linux, macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-115944
<!-- /gh-linked-prs -->
| f7305a06c7a322d23b39ad9d16af814d467624c6 | 6cd1d6c6b142697fb72f422b7b448c27ebc30534 |
python/cpython | python__cpython-116196 | # Documentation: PyDictKeysObjects layout diagram in the comments section of Objects/dictobjects.c file
# Documentation
The `PyDictKeysObjects` layout diagram in the file `Objects/dictobjects.c` comments section, shown below:
```
layout:
+---------------------+
| dk_refcnt |
| dk_log2_size |
| dk_log2_index_bytes |
| dk_kind |
| dk_usable |
| dk_nentries |
+---------------------+
| dk_indices[] |
| |
+---------------------+
| dk_entries[] |
| |
+---------------------+
```
seems not to correspond with the actual definition of `PyDictKeysObjects` which is a typedef of `_dictkeysobject`, where `_dictkeysobject` is located in the file ```Include/internal/pycore_dict.h```, and its structure is reproduced below:
```c
/* See dictobject.c for actual layout of DictKeysObject */
struct _dictkeysobject {
Py_ssize_t dk_refcnt;
/* Size of the hash table (dk_indices). It must be a power of 2. */
uint8_t dk_log2_size;
/* Size of the hash table (dk_indices) by bytes. */
uint8_t dk_log2_index_bytes;
/* Kind of keys */
uint8_t dk_kind;
/* Version number -- Reset to 0 by any modification to keys */
uint32_t dk_version;
/* Number of usable entries in dk_entries. */
Py_ssize_t dk_usable;
/* Number of used entries in dk_entries. */
Py_ssize_t dk_nentries;
/* Actual hash table of dk_size entries. It holds indices in dk_entries,
or DKIX_EMPTY(-1) or DKIX_DUMMY(-2).
Indices must be: 0 <= indice < USABLE_FRACTION(dk_size).
The size in bytes of an indice depends on dk_size:
- 1 byte if dk_size <= 0xff (char*)
- 2 bytes if dk_size <= 0xffff (int16_t*)
- 4 bytes if dk_size <= 0xffffffff (int32_t*)
- 8 bytes otherwise (int64_t*)
Dynamically sized, SIZEOF_VOID_P is minimum. */
char dk_indices[]; /* char is required to avoid strict aliasing. */
/* "PyDictKeyEntry or PyDictUnicodeEntry dk_entries[USABLE_FRACTION(DK_SIZE(dk))];" array follows:
see the DK_ENTRIES() macro */
};
```
The struct ```_dictkeysobject``` has a ```dk_version``` field and it doesn't contain a ```dk_entries``` field, whereas the layout diagram in the code comments' section shows such fields.
End.
<!-- gh-linked-prs -->
### Linked PRs
* gh-116196
<!-- /gh-linked-prs -->
| 5e0c7bc1d311048e8252bae6fc91cb51c556f807 | ff96b81d78c4a52fb1eb8384300af3dd0dd2db0d |
python/cpython | python__cpython-115935 | # ``test_unparse`` raises a ``SyntaxWarning``
# Bug report
### Bug description:
```python
./python.exe -m test test_unparse
Using random seed: 1838242075
0:00:00 load avg: 3.28 Run 1 test sequentially
0:00:00 load avg: 3.28 [1/1] test_unparse
<unknown>:1: SyntaxWarning: invalid escape sequence '\ '
<unknown>:1: SyntaxWarning: invalid escape sequence '\ '
== Tests result: SUCCESS ==
1 test OK.
Total duration: 2.9 sec
Total tests: run=69
Total test files: run=1/1
Result: SUCCESS
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-115935
* gh-115948
<!-- /gh-linked-prs -->
| b7383b8b71d49c761480ae9a8b2111644310e61d | 37f5d06b1bf830048c09ed967bb2cda945d56541 |
python/cpython | python__cpython-115927 | # Non-equation in random.uniform
# Documentation
The [`random.uniform`](https://docs.python.org/3/library/random.html#random.uniform) doc says:
> the equation `a + (b-a) * random()`
That's not an equation. Just an expression.
The page mentions "equation" twice more right above, but I think those refer to actual equations like the `pdf(x) = ...` for [`random.gammavariate`](https://docs.python.org/3/library/random.html#random.gammavariate) and are thus correct.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115927
* gh-115928
* gh-115929
<!-- /gh-linked-prs -->
| de0b4f95cbfe1f868514029289597204074c05c8 | bee7bb3310b356e99e3a0f75f23efbc97f1b0a24 |
python/cpython | python__cpython-115916 | # double init filename_obj value in pythonrun.c function PyRun_AnyFileExFlags
# Bug report
### Bug description:
```c
/* Parse input from a file and execute it */
int
PyRun_AnyFileExFlags(FILE *fp, const char *filename, int closeit,
PyCompilerFlags *flags)
{
PyObject *filename_obj;
if (filename != NULL) {
filename_obj = PyUnicode_DecodeFSDefault(filename);
if (filename_obj == NULL) {
PyErr_Print();
return -1;
}
}
else {
filename_obj = NULL;
}
int res = _PyRun_AnyFileObject(fp, filename_obj, closeit, flags);
Py_XDECREF(filename_obj);
return res;
}
```
===================== more better =============
```c
/* Parse input from a file and execute it */
int
PyRun_AnyFileExFlags(FILE *fp, const char *filename, int closeit,
PyCompilerFlags *flags)
{
PyObject *filename_obj = NULL;
if (filename != NULL) {
filename_obj = PyUnicode_DecodeFSDefault(filename);
if (filename_obj == NULL) {
PyErr_Print();
return -1;
}
}
int res = _PyRun_AnyFileObject(fp, filename_obj, closeit, flags);
Py_XDECREF(filename_obj);
return res;
}
```
### CPython versions tested on:
3.8, 3.9, 3.10, 3.11, 3.12, 3.13, CPython main branch
### Operating systems tested on:
Linux, macOS, Windows, Other
<!-- gh-linked-prs -->
### Linked PRs
* gh-115916
<!-- /gh-linked-prs -->
| f082a05c67cc949ccd1a940ecf6721953bbdc34f | 84a275c4a2c8a22d198c6f227d538e6b27bbb029 |
python/cpython | python__cpython-116131 | # importlib: PermissionError during startup if working directory isn't readable
# Bug report
### Bug description:
On macOS `importlib._bootstrap_external.PathFinder._path_importer_cache()` raises `PermissionError` during interpreter startup if `''` is included in `sys.path` and the current working directory is not readable.
# Reproduction
Given a CWD that is not readable by fred, the user fred cannot run Python
```
➜ private su fred -c "whoami; python3.13 -c 'pass'"
Password:
fred
Traceback (most recent call last):
File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
File "<frozen importlib._bootstrap>", line 1322, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 1262, in _find_spec
File "<frozen importlib._bootstrap_external>", line 1544, in find_spec
File "<frozen importlib._bootstrap_external>", line 1516, in _get_spec
File "<frozen importlib._bootstrap_external>", line 1495, in _path_importer_cache
PermissionError: [Errno 13] Permission denied
➜ private uname -mv; whoami; pwd; ls -ld
Darwin Kernel Version 23.3.0: Wed Dec 20 21:30:44 PST 2023; root:xnu-10002.81.5~7/RELEASE_ARM64_T6000 arm64
alex
/Users/alex/private
drwx------ 2 alex staff 64 25 Feb 10:44 .
➜ private python3.13 -c "import sys;print(sys.version)"
3.13.0a4+ (heads/main:6550b54813, Feb 25 2024, 10:56:11) [Clang 15.0.0 (clang-1500.1.0.2.5)]
```
# Workaround
Adding `-P`, prevents `''` being added to `sys.path`, so avoids the exception
```
➜ private su fred -c "whoami; python3.13 -P -c 'pass'"
Password:
fred
```
# Discussion
On macOS the libc function `getcwd()` can return `EACCES`. From the manpage
> [EACCES] Read or search permission was denied for a component of the pathname. This is only checked in limited cases, depending on implementation details.
When searching for importable modules `PathFinder._path_importer_cache()` attempts to determine the cwd by calling `os.getcwd()`, it handles a `FileNotFoundError` exception, but not `PermissionError`. Because `PathFinder` is used during interpreter startup user code has no opportunity to catch the exception.
# Proposed fix
Ignore `PermissionError` in `PathFinder._path_importer_cache()`, the same way `FileNotFoundError` is currently. This would result in imports succeeding, but without getting cached. E.g. applying the below change & rebuilding/reinstalling
```
➜ private su fred -c "whoami; python3.13 -c 'import sys;print(sys.version)'"
Password:
fred
3.13.0a4+ (heads/main:6550b54813, Feb 25 2024, 10:56:11) [Clang 15.0.0 (clang-1500.1.0.2.5)]
```
I'm happy to submit a PR with this, and unit tests as deemed suitable
```diff
➜ cpython git:(main) ✗ git diff
diff --git a/Lib/importlib/_bootstrap_external.py b/Lib/importlib/_bootstrap_external.py
index 2a9aef0317..5d1f4f1de0 100644
--- a/Lib/importlib/_bootstrap_external.py
+++ b/Lib/importlib/_bootstrap_external.py
@@ -1493,7 +1493,7 @@ def _path_importer_cache(cls, path):
if path == '':
try:
path = _os.getcwd()
- except FileNotFoundError:
+ except (FileNotFoundError, PermissionError):
# Don't cache the failure as the cwd can easily change to
# a valid directory later on.
return None
```
# Other Python Versions
In Python 3.10, 3.11 & 3.12 the same exception can occur when user code imports a non-builtin module (e.g. `base64`, zlib), but it does not occur during interpreter startup. I presume this is due to a change in which modules are required during interpreter initialisation.
```
➜ private su fred -c "whoami; python3.10 -c 'import sys;print(sys.version);import zlib'"
Password:
fred
3.10.13 (main, Aug 24 2023, 12:59:26) [Clang 15.0.0 (clang-1500.1.0.2.5)]
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
File "<frozen importlib._bootstrap>", line 1002, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 945, in _find_spec
File "<frozen importlib._bootstrap_external>", line 1439, in find_spec
File "<frozen importlib._bootstrap_external>", line 1408, in _get_spec
File "<frozen importlib._bootstrap_external>", line 1366, in _path_importer_cache
PermissionError: [Errno 13] Permission denied
➜ private su fred -c "whoami; python3.11 -c 'import sys;print(sys.version);import zlib'"
Password:
fred
3.11.7 (main, Dec 4 2023, 18:10:11) [Clang 15.0.0 (clang-1500.1.0.2.5)]
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
File "<frozen importlib._bootstrap>", line 1138, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 1078, in _find_spec
File "<frozen importlib._bootstrap_external>", line 1504, in find_spec
File "<frozen importlib._bootstrap_external>", line 1473, in _get_spec
File "<frozen importlib._bootstrap_external>", line 1431, in _path_importer_cache
PermissionError: [Errno 13] Permission denied
➜ private su fred -c "whoami; python3.12 -c 'import sys;print(sys.version);import zlib'"
Password:
fred
3.12.1 (main, Dec 7 2023, 20:45:44) [Clang 15.0.0 (clang-1500.1.0.2.5)]
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
File "<frozen importlib._bootstrap>", line 1322, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 1262, in _find_spec
File "<frozen importlib._bootstrap_external>", line 1524, in find_spec
File "<frozen importlib._bootstrap_external>", line 1496, in _get_spec
File "<frozen importlib._bootstrap_external>", line 1475, in _path_importer_cache
PermissionError: [Errno 13] Permission denied
```
### CPython versions tested on:
3.10, 3.11, 3.12, CPython main branch
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-116131
<!-- /gh-linked-prs -->
| a8dc6d6d44a141a8f839deb248a02148dcfb509e | 914c232e9391e8e5014b089ba12c75d4a3b0cc7f |
python/cpython | python__cpython-116018 | # test_capi failure when GIL disabled
# Bug report
### Bug description:
`test_capi` is failing reliably for me on Ubuntu 22.04 (Intel) and MacOS Sonoma (M1 Pro). Repeat with:
```bash
git clean -fdx
./configure
make
./python -E -m test --fast-ci --timeout= test_capi
# test_capi succeeds
git clean -fdx
./configure --disable-gil
make
./python -E -m test --fast-ci --timeout= test_capi
# test_capi fails
```
Output:
```
FAIL: test_pyobject_freed_is_freed (test.test_capi.test_mem.PyMemDebugTests.test_pyobject_freed_is_freed)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/skip/src/python/cpython/Lib/test/test_capi/test_mem.py", line 113, in test_pyobject_freed_is_freed
self.check_pyobject_is_freed('check_pyobject_freed_is_freed')
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/skip/src/python/cpython/Lib/test/test_capi/test_mem.py", line 97, in check_pyobject_is_freed
assert_python_ok(
~~~~~~~~~~~~~~~~^
'-c', code,
^^^^^^^^^^^
PYTHONMALLOC=self.PYTHONMALLOC,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
MALLOC_CONF="junk:false",
^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/Users/skip/src/python/cpython/Lib/test/support/script_helper.py", line 180, in assert_python_ok
return _assert_python(True, *args, **env_vars)
~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/skip/src/python/cpython/Lib/test/support/script_helper.py", line 165, in _assert_python
res.fail(cmd_line)
~~~~~~~~^^^^^^^^^^
File "/Users/skip/src/python/cpython/Lib/test/support/script_helper.py", line 75, in fail
raise AssertionError("Process return code is %d\n"
...<13 lines>...
err))
AssertionError: Process return code is 1
command line: ['/Users/skip/src/python/cpython/python.exe', '-X', 'faulthandler', '-c', '\nimport gc, os, sys, _testinternalcapi\n# Disable the GC to avoid crash on GC collection\ngc.disable()\n_testinternalcapi.check_pyobject_freed_is_freed()\n# Exit immediately to avoid a crash while deallocating\n# the invalid object\nos._exit(0)\n']
stdout:
---
---
stderr:
---
Traceback (most recent call last):
File "<string>", line 5, in <module>
_testinternalcapi.check_pyobject_freed_is_freed()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
AssertionError: object is not seen as freed
---
```
I tried this on both MacOS Sonoma (14.3) and Dell (Intel) Ubuntu 22.04. Results were the same.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux, macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-116018
<!-- /gh-linked-prs -->
| 75c6c05fea212330f4b0259602ffae1b2cb91be3 | df5212df6c6f08308c68de4b3ed8a1b51ac6334b |
python/cpython | python__cpython-115887 | # shm_open() and shm_unlink() truncate names with embedded null characters
# Bug report
Posix functions `shm_open()` and `shm_unlink()` take a null terminated C strings using `PyUnicode_AsUTF8AndSize(path, NULL)` which returns a pointer to char buffer which can include embedded null characters. When interpreted as C strings they are terminated at embedded null characters.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115887
* gh-115906
* gh-115907
<!-- /gh-linked-prs -->
| 79811ededd160b6e8bcfbe4b0f9d5b4589280f19 | 5770006ffac2abd4f1c9fd33bf5015c9ef023576 |
python/cpython | python__cpython-115350 | # Fix building CPython with -DWIN32_LEAN_AND_MEAN on Windows
# Feature or enhancement
### Proposal:
We use customized build of CPython which compiles all the sources with `-WIN32_LEAN_AND_MEAN`, thus limiting the amount of transitive `#include` from `Windows.h` header.
I would like to propose a series of enhancements to make CPython buildable in this configuration.
### Has this already been discussed elsewhere?
No response given
### Links to previous discussion of this feature:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-115350
<!-- /gh-linked-prs -->
| 96c10c648565c7406d5606099dbbb937310c26dc | c0fdfba7ff981c55ac13325e4dddaf382601b246 |
python/cpython | python__cpython-115920 | # `ast.parse()` believes valid context manager py38 syntax to be invalid when `feature_version=(3, 8)` is passed
# Bug report
### Bug description:
The following code is completely valid on Python 3.8:
```python
from contextlib import nullcontext
with (
nullcontext() if bool() else nullcontext()
):
pass
```
However, following https://github.com/python/cpython/commit/0daba822212cd5d6c63384a27f390f0945330c2b (which was backported to Python 3.11 and Python 3.10), `ast.parse()` incorrectly throws an error if you try to parse this code with `feature_version=(3, 8)`:
```pycon
% python
Python 3.10.6 (main, Feb 24 2024, 10:35:05) [Clang 15.0.0 (clang-1500.1.0.2.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import ast
>>> source = """
... with (
... nullcontext() if bool() else nullcontext()
... ):
... pass
... """
>>> ast.parse(source, feature_version=(3, 8))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/alexw/.pyenv/versions/3.10.6/lib/python3.10/ast.py", line 50, in parse
return compile(source, filename, mode, flags,
File "<unknown>", line 5
pass
^
SyntaxError: Parenthesized context managers are only supported in Python 3.9 and greater
```
Cc. @hauntsaninja / @pablogsal
### CPython versions tested on:
3.8, 3.9, 3.10, 3.11, 3.12
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-115920
* gh-115959
* gh-115960
* gh-115980
* gh-116173
* gh-116174
<!-- /gh-linked-prs -->
| 7a3518e43aa50ea57fd35863da831052749b6115 | 8e8ab75d97f51c2850eb8cd711010662d5f1d360 |
python/cpython | python__cpython-116204 | # Segfaults when accessing module state in `tp_dealloc` (itertools teedataobject clear)
# Crash report
### What happened?
```python
from dataclasses import dataclass
from itertools import tee
from typing import Optional
# if we remove @dataclass, then no segfault
@dataclass
class SomeDataClass:
pass
class SomeClass:
# if we remove Optional, then no segfault
_value: Optional[SomeDataClass]
def __init__(self, it):
self._it = it
def prepare_segfault(self):
(lhs, _) = tee(self._it)
# if we don't assign lhs to self._it, then no segfault
self._it = lhs
# if some_object isn't bound at the top-level scope, then no segfault
some_object = SomeClass(iter("testing"))
some_object.prepare_segfault()
```
Running the file from the terminal with `python3.12 minimal.py` is sufficient. When the interpreter exits, it segfaults.
Crash does not occur in python 3.8-3.11, but does occur in 3.12 and 3.13. Crash not observed on Windows with 3.12.
Backtrace:
```
#0 0x00007fc2c1a72e01 in teedataobject_clear (tdo=tdo@entry=0x7fc2b3ed2040) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Modules/itertoolsmodule.c:836
#1 0x00007fc2c1a72d49 in teedataobject_dealloc (tdo=0x7fc2b3ed2040) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Modules/itertoolsmodule.c:845
#2 0x00007fc2c1b06a0e in Py_DECREF (op=<optimized out>) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Include/object.h:706
#3 tee_clear (to=to@entry=0x7fc2b3c13b00) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Modules/itertoolsmodule.c:1050
#4 0x00007fc2c1b069ac in tee_dealloc (to=0x7fc2b3c13b00) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Modules/itertoolsmodule.c:1059
#5 0x00007fc2c1a390d8 in _Py_Dealloc (op=<optimized out>) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Objects/object.c:2608
#6 Py_DECREF (op=<optimized out>) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Include/object.h:706
#7 Py_XDECREF (op=<optimized out>) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Include/object.h:799
#8 _PyObject_FreeInstanceAttributes (self=0x7fc2b3daf1d0) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Objects/dictobject.c:5571
#9 subtype_dealloc (self=0x7fc2b3daf1d0) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Objects/typeobject.c:2017
#10 0x00007fc2c19f5440 in _Py_Dealloc (op=<optimized out>) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Objects/object.c:2625
#11 Py_DECREF (op=<optimized out>) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Include/object.h:706
#12 Py_XDECREF (op=<optimized out>) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Include/object.h:799
#13 free_keys_object (interp=0x7fc2c1df0d48 <_PyRuntime+76392>, keys=0x7fc2b3d7a100) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Objects/dictobject.c:673
#14 0x00007fc2c1aa72bd in dict_tp_clear (op=<optimized out>) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Objects/dictobject.c:3564
#15 0x00007fc2c1a02cfa in delete_garbage (old=0x7fc2c1df0e00 <_PyRuntime+76576>, collectable=0x7ffcdfc26270, gcstate=0x7fc2c1df0db8 <_PyRuntime+76504>, tstate=0x7fc2c1e4e668 <_PyRuntime+459656>)
at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Modules/gcmodule.c:1029
#16 gc_collect_main (tstate=0x7fc2c1e4e668 <_PyRuntime+459656>, generation=generation@entry=2, n_collected=n_collected@entry=0x0, n_uncollectable=n_uncollectable@entry=0x0, nofail=nofail@entry=1)
at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Modules/gcmodule.c:1303
#17 0x00007fc2c1abe201 in _PyGC_CollectNoFail (tstate=<optimized out>) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Modules/gcmodule.c:2135
#18 0x00007fc2c1aaacda in Py_FinalizeEx () at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Python/pylifecycle.c:1889
#19 0x00007fc2c1ab96c9 in Py_RunMain () at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Modules/main.c:711
#20 0x00007fc2c1a74f5c in Py_BytesMain (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/python3.12-3.12.1-2.fc39.x86_64/Modules/main.c:763
#21 0x00007fc2c164614a in __libc_start_call_main (main=main@entry=0x56033de41160 <main>, argc=argc@entry=2, argv=argv@entry=0x7ffcdfc26698) at ../sysdeps/nptl/libc_start_call_main.h:58
#22 0x00007fc2c164620b in __libc_start_main_impl (main=0x56033de41160 <main>, argc=2, argv=0x7ffcdfc26698, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffcdfc26688)
at ../csu/libc-start.c:360
#23 0x000056033de41095 in _start ()
```
### CPython versions tested on:
3.12
### Operating systems tested on:
Linux
### Output from running 'python -VV' on the command line:
Python 3.12.1 (main, Dec 18 2023, 00:00:00) [GCC 13.2.1 20231205 (Red Hat 13.2.1-6)]
<!-- gh-linked-prs -->
### Linked PRs
* gh-116204
* gh-116955
* gh-117741
* gh-118114
<!-- /gh-linked-prs -->
| e2fcaf19d302b05d3466807bad0a61f39db2a51b | cd2ed917801b93fb46d1dcf19dd480e5146932d8 |
python/cpython | python__cpython-115873 | # Doc: obsolete reference to MSI packages
https://docs.python.org/3.13/using/windows.html page refers to "MSI packages" in the following sentence:
To make Python available, the CPython team has compiled Windows installers (**MSI packages**) with every release for many years.
However, MSI packages have been replaced regular Windows installer since python-3.5; for example see here:
https://docs.python.org/3.13/whatsnew/3.5.html
Windows improvements:
* A new installer for Windows has replaced the old MSI.
because of this the reference for MSI packages should be removed from documentation here: https://docs.python.org/3.13/using/windows.html
<!-- gh-linked-prs -->
### Linked PRs
* gh-115873
* gh-115876
* gh-115877
<!-- /gh-linked-prs -->
| 52517118685dd3cc35068af6bba80b650775a89b | 200271c61db44d90759f8a8934949aefd72d5724 |
python/cpython | python__cpython-115860 | # Type propagation: just because something is const doesn't mean it automatically matches the type
# Bug report
### Bug description:
See log files for failure:
https://github.com/python/cpython/actions/runs/8021737661/job/21914497578
An example failure from my Windows machine:
```
Assertion failed: PyFloat_CheckExact(sym_get_const(left)), file C:\Users\Ken\Documents\GitHub\cpython\Python\tier2_redundancy_eliminator_cases.c.h, line 279
Fatal Python error: Aborted
```
Just because a constant is present, doesn't mean it's the right type. In such a case, I think we should bail from the abstract interpreter, because it's a guaranteed deopt.
E.g.
```C
op(_GUARD_BOTH_FLOAT, (left, right -- left, right)) {
if (sym_matches_type(left, &PyFloat_Type) &&
sym_matches_type(right, &PyFloat_Type)) {
REPLACE_OP(this_instr, _NOP, 0 ,0);
}
sym_set_type(left, &PyFloat_Type);
sym_set_type(right, &PyFloat_Type);
}
```
should become
```C
op(_GUARD_BOTH_FLOAT, (left, right -- left, right)) {
if (sym_matches_type(left, &PyFloat_Type) &&
sym_matches_type(right, &PyFloat_Type)) {
REPLACE_OP(this_instr, _NOP, 0 ,0);
}
if (sym_is_const(left)) {
if (!sym_const_is_type(left, &PyFloat_Type) goto guaranteed_deopt;
}
if (sym_is_const(right)) {
if (!sym_const_is_type(right, &PyFloat_Type) goto guaranteed_deopt;
}
sym_set_type(left, &PyFloat_Type);
sym_set_type(right, &PyFloat_Type);
}
```
While
```C
op(_BINARY_OP_ADD_FLOAT, (left, right -- res)) {
if (sym_is_const(left) && sym_is_const(right)) {
assert(PyFloat_CheckExact(sym_get_const(left)));
assert(PyFloat_CheckExact(sym_get_const(right)));
PyObject *temp = PyFloat_FromDouble(
PyFloat_AS_DOUBLE(sym_get_const(left)) +
PyFloat_AS_DOUBLE(sym_get_const(right)));
ERROR_IF(temp == NULL, error);
OUT_OF_SPACE_IF_NULL(res = sym_new_const(ctx, temp));
// TODO gh-115506:
// replace opcode with constant propagated one and update tests!
}
else {
OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, &PyFloat_Type));
}
}
```
should become
```C
op(_BINARY_OP_ADD_FLOAT, (left, right -- res)) {
if (sym_is_const(left) && sym_is_const(right)) {
if(!PyFloat_CheckExact(sym_get_const(left))) {
goto guaranteed_deopt;
}
if(!PyFloat_CheckExact(sym_get_const(right))) {
goto guaranteed_deopt;
}
PyObject *temp = PyFloat_FromDouble(
PyFloat_AS_DOUBLE(sym_get_const(left)) +
PyFloat_AS_DOUBLE(sym_get_const(right)));
ERROR_IF(temp == NULL, error);
OUT_OF_SPACE_IF_NULL(res = sym_new_const(ctx, temp));
// TODO gh-115506:
// replace opcode with constant propagated one and update tests!
}
else {
OUT_OF_SPACE_IF_NULL(res = sym_new_known_type(ctx, &PyFloat_Type));
}
}
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-115860
* gh-116062
* gh-116079
<!-- /gh-linked-prs -->
| 3409bc29c9f06051c28ae0791155e3aebd76ff2d | 75c6c05fea212330f4b0259602ffae1b2cb91be3 |
python/cpython | python__cpython-115837 | # test_monitoring contains hardcoded line numbers
# Bug report
### Bug description:
`test_lines_single`, `test_lines_loop`, and `test_lines_two` in [`test_monitoring.LinesMonitoringTest`](https://github.com/python/cpython/blob/main/Lib/test/test_monitoring.py#L520) all contain some hardcoded line numbers in their expected values. They should consistently use offsets from `co_firstlineno` on the relevant code objects instead.
I ran into this while adding a test for gh-115832, and already have a fix ready to put up as a PR.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-115837
<!-- /gh-linked-prs -->
| a494a3dd8e0e74861972698c37b14a4087a4688c | b48101864c724a7eab41a6878a836f38e54e04fb |
python/cpython | python__cpython-115856 | # Coverage.py test suite failure since commit 0749244d134
# Bug report
### Bug description:
Coverage.py runs its test suite against nightly builds of Python. The tests stalled last night. Running them locally, there's one test that freezes the suite. The GitHub action is eventually cancelled by timing out after six hours: https://github.com/nedbat/coveragepy/actions/runs/8000886484
Bisecting CPython, the first bad commit is 0749244d13412d7cb5b53d834f586f2198f5b9a6
```
commit 0749244d13412d7cb5b53d834f586f2198f5b9a6
Author: Brett Simmers <swtaarrs@users.noreply.github.com>
Date: Tue Feb 20 06:57:48 2024 -0800
gh-112175: Add `eval_breaker` to `PyThreadState` (#115194)
This change adds an `eval_breaker` field to `PyThreadState`. The primary
motivation is for performance in free-threaded builds: with thread-local eval
breakers, we can stop a specific thread (e.g., for an async exception) without
interrupting other threads.
The source of truth for the global instrumentation version is stored in the
`instrumentation_version` field in PyInterpreterState. Threads usually read the
version from their local `eval_breaker`, where it continues to be colocated
with the eval breaker bits.
```
I'm still investigating, but I'm hoping that someone familiar with the change (@swtaarrs?) will be able to help.
To reproduce:
```
% git clone https://github.com/nedbat/coveragepy
% cd coveragepy
% export COVERAGE_ANYPY=/path/to/your/python3
% pip install tox
% tox -qre anypy -- -n 0 -vvv -k test_multiprocessing_simple
=== CPython 3.13.0a4+ (rev 0749244d13) with C tracer (.tox/anypy/bin/python) ===
===================================================================== test session starts ======================================================================
platform darwin -- Python 3.13.0a4+, pytest-8.0.1, pluggy-1.4.0 -- /Users/ned/coverage/trunk/.tox/anypy/bin/python
cachedir: .tox/anypy/.pytest_cache
hypothesis profile 'default' -> database=DirectoryBasedExampleDatabase(PosixPath('/Users/ned/coverage/trunk/.hypothesis/examples'))
rootdir: /Users/ned/coverage/trunk
configfile: pyproject.toml
plugins: flaky-3.7.0, xdist-3.5.0, hypothesis-6.98.9
collected 1386 items / 1384 deselected / 2 selected
run-last-failure: no previously failed tests, not deselecting items.
tests/test_concurrency.py::MultiprocessingTest::test_multiprocessing_simple[fork] PASSED [ 50%]
tests/test_concurrency.py::MultiprocessingTest::test_multiprocessing_simple[spawn] PASSED [100%]
============================================================== 2 passed, 1384 deselected in 3.37s ==============================================================
=== CPython 3.13.0a4+ (rev 0749244d13) with sys.monitoring (.tox/anypy/bin/python) ===
===================================================================== test session starts ======================================================================
platform darwin -- Python 3.13.0a4+, pytest-8.0.1, pluggy-1.4.0 -- /Users/ned/coverage/trunk/.tox/anypy/bin/python
cachedir: .tox/anypy/.pytest_cache
hypothesis profile 'default' -> database=DirectoryBasedExampleDatabase(PosixPath('/Users/ned/coverage/trunk/.hypothesis/examples'))
rootdir: /Users/ned/coverage/trunk
configfile: pyproject.toml
plugins: flaky-3.7.0, xdist-3.5.0, hypothesis-6.98.9
collected 1386 items / 1384 deselected / 2 selected
run-last-failure: no previously failed tests, not deselecting items.
tests/test_concurrency.py::MultiprocessingTest::test_multiprocessing_simple[fork] PASSED [ 50%]
tests/test_concurrency.py::MultiprocessingTest::test_multiprocessing_simple[spawn]
```
and there it is stuck.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux, macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-115856
<!-- /gh-linked-prs -->
| 0adfa8482d369899e9963206a3307f423309e10c | 15dc2979bc1b24269177f0e150495abb7f3eb546 |
python/cpython | python__cpython-115828 | # Warning "Objects/longobject.c:1186:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]"
# Bug report
It happens here: https://github.com/python/cpython/blob/b348313e7a48811acacc293ac4b2c8b20b4c631b/Objects/longobject.c#L1166-L1193
Line `1186`. The problem is:
- (no warning) https://github.com/python/cpython/blob/b348313e7a48811acacc293ac4b2c8b20b4c631b/Objects/longobject.c#L1173
- (warning) https://github.com/python/cpython/blob/b348313e7a48811acacc293ac4b2c8b20b4c631b/Objects/longobject.c#L1186
Buildbot link: https://buildbot.python.org/all/#/builders/332/builds/1372
I have a PR ready.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115828
<!-- /gh-linked-prs -->
| 465df8855e9fff771e119ea525344de48869ef1a | b348313e7a48811acacc293ac4b2c8b20b4c631b |
python/cpython | python__cpython-115824 | # Invalid error range when the tokeniser finds invalid bytes
When the tokeniser raises errors due to invalid byte sequences **only when the parser encoding is implicit** (such when parsing a file), the error locations are not properly transformed to character offsets
<!-- gh-linked-prs -->
### Linked PRs
* gh-115824
* gh-115949
* gh-115950
<!-- /gh-linked-prs -->
| 015b97d19a24a169cc3c0939119e1228791e4253 | b7383b8b71d49c761480ae9a8b2111644310e61d |
python/cpython | python__cpython-116063 | # Document in the main Enum page that super().__new__ should not be called
The HowTo page says [here](https://docs.python.org/3/howto/enum.html#when-to-use-new-vs-init) that `super().__new__` should not be called in user-defined `__new__` methods of an Enum (subclass), along with a short explanation for why it is the case.
But this is a hard limitation, not a bonus explanation. When I tried using the super, I ended up with an exception I didn't understand and the doc entry for `Enum.__new__` didn't help me at all as per why that was failing.
The explanation should probably remain in the howto page, but a similar red warning should be added to [`Enum.__new__`](https://docs.python.org/3/library/enum.html#enum.Enum.__new__), saying that calling `super().__new__` inside user-defined `__new__` functions is forbidden.
<!-- gh-linked-prs -->
### Linked PRs
* gh-116063
* gh-116065
<!-- /gh-linked-prs -->
| 3ea78fd5bc93fc339ef743e6a5dfde35f04d972e | 4d1d35b906010c6db15f54443a9701c20af1db2d |
python/cpython | python__cpython-116355 | # Eliminate boolean and `None` guards for constants
Eliminate the following guard ops if the input is constant:
* `_GUARD_IS_TRUE_POP`
* `_GUARD_IS_FALSE_POP`
* `_GUARD_IS_NONE_POP`
* `_GUARD_IS_NOT_NONE_POP`
<!-- gh-linked-prs -->
### Linked PRs
* gh-116355
<!-- /gh-linked-prs -->
| 0c81ce13602b88fd59f23f701ed8dc377d74e76e | c91bdf86ef1cf9365b61a46aa2e51e5d1932b00a |
python/cpython | python__cpython-116109 | # Undocumented attributes of logging.Logger
# Documentation
The `logging.Logger` class has a few undocumented, useful, relatively well-known attributes, namely
- `name`
- `level`
- `parent`
- `handlers`
- `disabled`
It would be useful to add them to the documentation or, if that is undesired, perhaps to add a caveat that these should not be accessed even though there naming without an underscore suggests public visibility.
<!-- gh-linked-prs -->
### Linked PRs
* gh-116109
* gh-116185
* gh-116186
<!-- /gh-linked-prs -->
| 3b6f4cadf19e6a4edd2cbbbc96a0a4024b395648 | 04d1000071b5eefd4b1dd69051aacad343da4b21 |
python/cpython | python__cpython-115812 | # TimedRotatingFileHandler: reliable algorithm to determine the files to delete
# Bug report
There were many issues related to removing old files in TimedRotatingFileHandler:
* bpo-44753/#88916
* bpo-45628/#89791
* bpo-46063/#90221
* #93205
It is complicated because the namer attribute allows arbitrary transformation of the file name.
1. #93205 almost nailed the case without namer. But when there are two handlers with the same basename, and one has no namer, while other has a simple namer that adds an extension, the former handler will delete logs of the latter one. This is because the regular expression `extMatch` includes an optional extension. It is a remnant from former attempts to handle rotation, and is not needed now. The issue can be fixed by removing it.
2. It is even more complicated when we have more complex namer. It can add more complex suffix, it can modify the prefix. We can only expect that it leaves the datetime part unchanged. I think that the most reliable way to find candidates for deletion is to find the datetime part in the file, then generate a new filename for this datetime and compare it with the original filename. It should work for arbitrary deterministic namer that does not modify the datetime part, and should not produce false positives.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115812
* gh-116261
* gh-116262
<!-- /gh-linked-prs -->
| 87faec28c78f6fa8eaaebbd1ababf687c7508e71 | 002a5948fc9139abec2ecf92df8b543e093c43fb |
python/cpython | python__cpython-115814 | # Add operator.is_none()
# Feature or enhancement
### Proposal:
With floating point data, the `float('NaN')` special value is commonly used as a placeholder for missing values. We provide `math.isnan` to support stripping out those values prior to sorting or summation:
```python
>>> from math import isnan
>>> from itertools import filterfalse
>>> data = [3.3, float('nan'), 1.1, 2.2]
>>> sorted(filterfalse(isnan, data))
[1.1, 2.2, 3.3]
```
For non-float data, the `None` special value is commonly used as a placeholder for missing values. I propose a new function in the operator module analogous to `math.isnan()`:
```pycon
>>> data = ['c', None, 'a', 'b']
>>> sorted(filterfalse(is_none, data))
['a', 'b', 'c']
```
This helps fulfill a primary use case for the operator module which is to support functional programming with `map()`, `filter()`, etc.
### Has this already been discussed elsewhere?
No response given
### Links to previous discussion of this feature:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-115814
<!-- /gh-linked-prs -->
| 5580f31c56e6f90909bdceddda077504cc2d18b0 | 0fd97e46c75bb3060485b796ca597b13af7e6bec |
python/cpython | python__cpython-115807 | # Configure UX
# Feature or enhancement
The LDLIBRARY and HOSTRUNNER checks overlap; this results in garbled output:
```console
$ ./configure
[...]
checking LDLIBRARY... checking HOSTRUNNER...
libpython$(VERSION)$(ABIFLAGS).a
```
The IPv6 library check is very subtle:
```console
$ ./configure
[...]
configure: using libc
```
Suggesting to clean this up, for improved `configure` user experience:
```console
$ ./configure
[...]
checking LDLIBRARY... libpython$(VERSION)$(ABIFLAGS).a
checking HOSTRUNNER...
[...]
checking ipv6 stack type... kame
checking ipv6 library... libc
```
<!-- gh-linked-prs -->
### Linked PRs
* gh-115807
* gh-116165
* gh-129390
<!-- /gh-linked-prs -->
| e74cd0f9101d06045464ac3173ab73e0b78d175e | 2e92ffd7fa89e3bd33ee2f31541d3dc53aaa2d12 |
python/cpython | python__cpython-118333 | # difflib._check_types allows string inputs instead of sequences of strings as documented
# Bug report
### Bug description:
Both `difflib.unified_diff` and `difflib.context_diff` document that `a` and `b` input arguments are to be lists of strings. These functions perform argument type checking by way of `difflib._check_types`, however this function allows `a` and `b` to be direct `str` arguments. Technically this does not cause a failure in `difflib.unified_diff` (and I assume the same is true for `context_diff` but I have not tested it), however, for very large strings `a` and/or `b`, `difflib.unified_diff` is exponentially slower to calculate the diff, because the underlying `SequenceMatcher` is optimized to compare two lists of string, not two sequences of chars.
We can obviously see that the implementation of `_check_types` uses a seemingly naive type check of the first element in `a` and `b` which will pass for both the documented input of a list of strings, but also for a positive length string itself.
```python
def _check_types(a, b, *args):
# Checking types is weird, but the alternative is garbled output when
# someone passes mixed bytes and str to {unified,context}_diff(). E.g.
# without this check, passing filenames as bytes results in output like
# --- b'oldfile.txt'
# +++ b'newfile.txt'
# because of how str.format() incorporates bytes objects.
if a and not isinstance(a[0], str):
raise TypeError('lines to compare must be str, not %s (%r)' %
(type(a[0]).__name__, a[0]))
if b and not isinstance(b[0], str):
raise TypeError('lines to compare must be str, not %s (%r)' %
(type(b[0]).__name__, b[0]))
for arg in args:
if not isinstance(arg, str):
raise TypeError('all arguments must be str, not: %r' % (arg,))
```
This would be rather trivial to fix in `_check_types` but I want to first make sure that the documentation of a list of string is to be considered correct behavior?
### CPython versions tested on:
3.8, 3.9, 3.10, 3.11, 3.12, 3.13, CPython main branch
### Operating systems tested on:
Linux, macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-118333
<!-- /gh-linked-prs -->
| c3b6dbff2c8886de1edade737febe85dd47ff4d0 | b90bd3e5bbc136f53b24ee791824acd6b17e0d42 |
python/cpython | python__cpython-115884 | # An error in python Exception Handling doc.
[link](https://docs.python.org/3.13/c-api/exceptions.html#c.PyErr_FormatUnraisable)
void PyErr_FormatUnraisable(const char *format, ...)
Similar to PyErr_WriteUnraisable(), but the format and subsequent parameters help format the warning message; they have the same meaning and values as in [PyUnicode_FromFormat()](https://docs.python.org/3.13/c-api/unicode.html#c.PyUnicode_FromFormat). PyErr_WriteUnraisable(obj) is roughtly equivalent to PyErr_FormatUnraisable("Exception ignored in: %R, obj). If format is NULL, only the traceback is printed.
I think the PyErr_FormatUnraisable("Exception ignored in: %R, obj) should be PyErr_FormatUnraisable("Exception ignored in: %R", obj).
<!-- gh-linked-prs -->
### Linked PRs
* gh-115884
<!-- /gh-linked-prs -->
| 6a3236fe2e61673cf9f819534afbf14a18678408 | 8f5be78bce95deb338e2e1cf13a0a579b3b42dd2 |
python/cpython | python__cpython-115797 | # _testinternalcapi.assemble_code_object doesn't construct the exception table
The code object returned from `_testinternalcapi.assemble_code_object.` doesn't have a code object:
```
from _testinternalcapi import compiler_codegen, optimize_cfg, assemble_code_object
metadata = {
'filename' : 'exc.py',
'name' : 'exc',
'consts' : {2 : 0},
}
# code for "try: pass\n except: pass"
insts = [
('RESUME', 0),
('SETUP_FINALLY', 3),
('RETURN_CONST', 0),
('SETUP_CLEANUP', 8),
('PUSH_EXC_INFO', 0),
('POP_TOP', 0),
('POP_EXCEPT', 0),
('RETURN_CONST', 0),
('COPY', 3),
('POP_EXCEPT', 0),
('RERAISE', 1),
]
from test.test_compiler_assemble import IsolatedAssembleTests
metadata = IsolatedAssembleTests().complete_metadata(metadata)
insts = IsolatedAssembleTests().complete_insts_info(insts)
co = assemble_code_object(metadata['filename'], insts, metadata)
print(co.co_exceptiontable)
```
Output:
`b''`
<!-- gh-linked-prs -->
### Linked PRs
* gh-115797
<!-- /gh-linked-prs -->
| 96c1737591b45bc1c528df1103eb0e500751fefe | 8aa372edcd857d2fbec8da0cb993de15b4179308 |
python/cpython | python__cpython-115749 | # Doc: Windows set up documentation refers to obsolete URL
# Documentation
Using python on Windows documentation refers to an old URL for windows releases here:
https://docs.python.org/3.13/using/windows.html
In the sentence: "To make Python available, the CPython team has compiled Windows installers (MSI packages) with every [release](https://www.python.org/download/releases/) for many years."
https://www.python.org/download/releases/ should be replaced with https://www.python.org/downloads/
<!-- gh-linked-prs -->
### Linked PRs
* gh-115749
* gh-115803
* gh-115804
<!-- /gh-linked-prs -->
| 7bc79371a62e8f45542cf5679ed35d0d29e94226 | fac99b8b0df209ca6546545193b1873672d536ca |
python/cpython | python__cpython-115815 | # Bytecodes cleanup: promote TIER_{ONE,TWO}_ONLY to properties
Instead of
```
op(FOO, (left, right -- res)) {
TIER_TWO_ONLY
<actual code>
}
```
I'd like to be able to write
```
tier2 op(FOO, (left, right -- res)) {
<actual code>
}
```
<!-- gh-linked-prs -->
### Linked PRs
* gh-115815
<!-- /gh-linked-prs -->
| e4561e050148f6dc347e8c7ba30c8125b5fc0e45 | 59057ce55a443f35bfd685c688071aebad7b3671 |
python/cpython | python__cpython-116269 | # Double ``versionadded`` labels in ``typing.NoReturn`` doc
I think it was added by mistake:
https://github.com/python/cpython/blob/5f7df88821347c5f44fc4e2c691e83a60a6c6cd5/Doc/library/typing.rst#L957-L958
cc @JelleZijlstra @AlexWaygood
<!-- gh-linked-prs -->
### Linked PRs
* gh-116269
* gh-116361
* gh-116362
<!-- /gh-linked-prs -->
| 0064dfa0919cc93257c351a609f99461f6e4e3ac | 23db9c62272f7470aadf8f52fe3ebb42b5e5d380 |
python/cpython | python__cpython-115774 | # Exercise the debug structs placed in PyRuntime
To avoid breaking external inspection, profilers and debuggers too often or to make supporting them too difficult, we added a [special offset struct](https://github.com/python/cpython/blob/5f7df88821347c5f44fc4e2c691e83a60a6c6cd5/Include/internal/pycore_runtime.h#L53) in the `PyRuntime` structure. Unfortunately there is nothing testing that this offsets are correct or that they are enough to analyse or profile a Python application on their own. To fix this, we should add some testing that exercises the offsets and ensure they are enough to serve the purpose they were added.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115774
* gh-116212
* gh-118591
* gh-120112
* gh-121283
<!-- /gh-linked-prs -->
| 1752b51012269eaa35f7a28f162d18479a4f72aa | d53560deb2c9ae12147201003fe63b266654ee21 |
python/cpython | python__cpython-137326 | # IP Interface is_unspecified broken
# Bug report
### Bug description:
```python
from ipaddress import ip_interface
ip_interface('0.0.0.0/32').is_unspecified == False
ip_interface('0.0.0.0/32').network.is_unspecified == True
ip_interface('0.0.0.0/32').ip.is_unspecified == True
```
Per the [documentation](https://docs.python.org/3/library/ipaddress.html#ipaddress.IPv4Interface), the IP interface classes inherit all properties from the associated address classes. As such, `is_unspecified` is available as a property, although as implemented now, it will always return `False` for an interface.
Given that an interface is just a network and host combined, it might be reasonable for the implementation of `is_unspecified` to be something along the lines of `self.network.is_unspecified and self.ip.is_unspecifed`, possibly implemented more efficiently (for example `self._ip == 0 and self._prefixlen == 32` for IPv4)
The current implementation isn't specified for an interface, so it falls back to the [address implementation](https://github.com/python/cpython/blob/main/Lib/ipaddress.py#L1362) which checks if the address equals '0.0.0.0', although this subtly always fails because the [interface equality function](https://github.com/python/cpython/blob/main/Lib/ipaddress.py#L1421) is used which will never return `True` comparing an interface and address object.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-137326
<!-- /gh-linked-prs -->
| deb0020e3d478fa72104b82e2ba1a1c0c6eb4eae | bc4996c125b3cd5c73d41c6bf4e71571a2b832c2 |
python/cpython | python__cpython-128411 | # Upgrade to GNU Autoconf 2.72
# Feature or enhancement
Autoconf 2.72 was [released 2023-12-22](https://lists.gnu.org/archive/html/info-gnu/2023-12/msg00002.html). Relevant highlights (some C&P verbatim) from the release announcement:
- Pre-C89 compilers are no longer supported. This should not be a problem for us, as [we're using C11](https://peps.python.org/pep-0007/#c-dialect).
- `AC_USE_SYSTEM_EXTENSIONS` now enables C23 Annex F extensions
by defining `__STDC_WANT_IEC_60559_EXT__` (is this a problem?)
- ~~Autoconf now quotes ```'like this'``` instead of ``` `like this'```; perhaps we should clean up our quoting in a separate first, so the 2.72 change is easier to review.~~ <= not worth the churn
- Improved compatibility with a wide variety of systems and tools
including CheriBSD, Darwin (macOS), GNU Guix, OS/2, z/OS, Bash 5.2,
the BusyBox shell and utilities, Clang/LLVM version 16, the upcoming
GCC version 14, etc.
The other version requirements (Perl, M4, etc.) should not affect us.
Preliminary actions:
- [x] #116016
- [x] #115792
<!-- gh-linked-prs -->
### Linked PRs
* gh-128411
* gh-128502
<!-- /gh-linked-prs -->
| 8abd6cef68a0582a4d912be76caddd9da5d55ccd | 4ed36d6efb3e3bc613045016dee594d671997709 |
python/cpython | python__cpython-115781 | # Make PyCode_GetFirstFree a PEP-689 unstable API
> It was and it wasn't. We don't really want to expose it, but if we don't then Cython and other C extensions will access the internal fields directly, which is worse.
>
> Now that we have an unstable API, it should probably be part of that.
I'd like all code object C APIs to be unstable, but it's probably too late for that.
>
> Maybe rename it to `PyUnstableCode_GetFirstFree`?
_Originally posted by @markshannon in https://github.com/python/cpython/pull/115654#discussion_r1497192136_
<!-- gh-linked-prs -->
### Linked PRs
* gh-115781
<!-- /gh-linked-prs -->
| a8e93d3dca086896e668b88b6c5450eaf644c0e7 | a3cf0fada09b74b1a6981cc06c4dd0bb1091b092 |
python/cpython | python__cpython-115750 | # "dyld: Library not loaded: /lib/libpython3.13.dylib" in 3.13.0a4 MacOS non-framework build with custom prefix
# Bug report
### Bug description:
The above error was discovered in [Pyenv CI check](https://github.com/pyenv/pyenv/actions/runs/7927748950/job/21644695424?pr=2903) (logs are on the link).
See https://github.com/pyenv/pyenv/pull/2903#issuecomment-1954681384 for diagnostics and probable cause.
### CPython versions tested on:
3.13
### Operating systems tested on:
macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-115750
<!-- /gh-linked-prs -->
| 074bbec9c4911da1d1155e56bd1693665800b814 | 10fc4675fdb14e19f2fdd15102c6533b9f71e992 |
python/cpython | python__cpython-115736 | # segfault with PYTHON_LLTRACE=3 and PYTHON_UOPS=1 on debug build
# Crash report
### What happened?
On main, run
```
PYTHON_UOPS=1 PYTHON_LLTRACE=3 ./python
```
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
_No response_
### Output from running 'python -VV' on the command line:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-115736
<!-- /gh-linked-prs -->
| 7a8c3ed43abb4b7a18e7a271aaee3ca69c0d83bc | e3ad6ca56f9b49db0694f432a870f907a8039f79 |
python/cpython | python__cpython-115740 | # 3.13.0a4 SIGSEGV when calling next on a list-iterator in for that loops the same iterator
# Bug report
### Bug description:
---
EDIT smaller reproducer:
```python
parts = iter([...] * 3) # odd number of elements
for part in parts:
next(parts, ...)
```
---
Hello, when we try to build Flask in Fedora with Python 3.13.0a4, we see a SIGSEGV. With @befeleme we've been able to isolate the failure to the following:
```python
# reporducer.py
import flask
app = flask.Flask("flask_test")
app.config.update(TESTING=True)
@app.route("/")
def index():
return "x"
with app.app_context():
app.test_client().get("/")
```
```
$ sudo dnf --enablerepo=updates-testing install python3.13-debug
$ sudo dnf --enablerepo=updates-testing debuginfo-install python3.13
$ python3.13d --version
Python 3.13.0a4
$ python3.13d -m venv venv3.13d
$ . venv3.13d/bin/activate
(venv3.13d)$ pip install flask
...
(venv3.13d)$ pip list
Package Version
------------ -------
blinker 1.7.0
click 8.1.7
Flask 3.0.2
itsdangerous 2.1.2
Jinja2 3.1.3
MarkupSafe 2.1.5
pip 23.2.1
Werkzeug 3.0.1
(venv3.13d)$ rm venv3.13d/lib64/python3.13/site-packages/markupsafe/_speedups.cpython-313-x86_64-linux-gnu.so # to eliminate possibility of SIGSEGV in markupsafe
(venv3.13d)$ python -X dev reproducer.py
Fatal Python error: Segmentation fault
Current thread 0x00007f9445ba8740 (most recent call first):
File "/tmp/venv3.13d/lib64/python3.13/site-packages/werkzeug/urls.py", line 40 in _unquote_partial
File "/tmp/venv3.13d/lib64/python3.13/site-packages/werkzeug/urls.py", line 85 in uri_to_iri
File "/tmp/venv3.13d/lib64/python3.13/site-packages/werkzeug/sansio/utils.py", line 137 in get_current_url
File "/tmp/venv3.13d/lib64/python3.13/site-packages/werkzeug/wsgi.py", line 66 in get_current_url
File "/tmp/venv3.13d/lib64/python3.13/site-packages/werkzeug/test.py", line 944 in _add_cookies_to_wsgi
File "/tmp/venv3.13d/lib64/python3.13/site-packages/werkzeug/test.py", line 985 in run_wsgi_app
File "/tmp/venv3.13d/lib64/python3.13/site-packages/werkzeug/test.py", line 1114 in open
File "/tmp/venv3.13d/lib64/python3.13/site-packages/flask/testing.py", line 235 in open
File "/tmp/venv3.13d/lib64/python3.13/site-packages/werkzeug/test.py", line 1160 in get
File "/tmp/reproducer.py", line 10 in <module>
Segmentation fault (core dumped)
```
Here's a bt from gdb:
```
(gdb) bt
#0 0x00007ffff7af344f in Py_TYPE (ob=0x0) at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Include/object.h:333
#1 0x00007ffff7af3f7c in PyList_GET_SIZE (op=0x0) at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Include/cpython/listobject.h:31
#2 0x00007ffff7b04e26 in _PyEval_EvalFrameDefault (tstate=0x7ffff7f2a8b8 <_PyRuntime+247704>, frame=0x7ffff7fb8620, throwflag=0)
at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Python/generated_cases.c.h:2544
#3 0x00007ffff7af53d3 in _PyEval_EvalFrame (tstate=0x7ffff7f2a8b8 <_PyRuntime+247704>, frame=0x7ffff7fb8120, throwflag=0)
at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Include/internal/pycore_ceval.h:115
#4 0x00007ffff7b25677 in _PyEval_Vector (tstate=0x7ffff7f2a8b8 <_PyRuntime+247704>, func=0x7fffe8570b90, locals=0x0, args=0x7fffe88d8fd0, argcount=2,
kwnames=('method',)) at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Python/ceval.c:1788
#5 0x00007ffff796cfe2 in _PyFunction_Vectorcall (func=<function at remote 0x7fffe8570b90>, stack=0x7fffe88d8fd0, nargsf=2, kwnames=('method',))
at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Objects/call.c:413
#6 0x00007ffff7970daa in _PyObject_VectorcallTstate (tstate=0x7ffff7f2a8b8 <_PyRuntime+247704>, callable=<function at remote 0x7fffe8570b90>,
args=0x7fffe88d8fd0, nargsf=2, kwnames=('method',)) at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Include/internal/pycore_call.h:168
#7 0x00007ffff79714d6 in method_vectorcall (method=<method at remote 0x7fffe8dc0c50>, args=0x7fffe88d8fd8, nargsf=9223372036854775809,
kwnames=('method',)) at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Objects/classobject.c:62
#8 0x00007ffff796ca02 in _PyVectorcall_Call (tstate=0x7ffff7f2a8b8 <_PyRuntime+247704>, func=0x7ffff7971329 <method_vectorcall>,
callable=<method at remote 0x7fffe8dc0c50>, tuple=('/',), kwargs={'method': 'GET'})
at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Objects/call.c:285
#9 0x00007ffff796cd00 in _PyObject_Call (tstate=0x7ffff7f2a8b8 <_PyRuntime+247704>, callable=<method at remote 0x7fffe8dc0c50>, args=('/',),
kwargs={'method': 'GET'}) at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Objects/call.c:348
#10 0x00007ffff796cddb in PyObject_Call (callable=<method at remote 0x7fffe8dc0c50>, args=('/',), kwargs={'method': 'GET'})
at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Objects/call.c:373
#11 0x00007ffff7afdbbf in _PyEval_EvalFrameDefault (tstate=0x7ffff7f2a8b8 <_PyRuntime+247704>, frame=0x7ffff7fb8098, throwflag=0)
at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Python/generated_cases.c.h:1250
#12 0x00007ffff7af53d3 in _PyEval_EvalFrame (tstate=0x7ffff7f2a8b8 <_PyRuntime+247704>, frame=0x7ffff7fb8020, throwflag=0)
at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Include/internal/pycore_ceval.h:115
#13 0x00007ffff7b25677 in _PyEval_Vector (tstate=0x7ffff7f2a8b8 <_PyRuntime+247704>, func=0x7fffe9d4dcd0,
locals={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/tmp/reproducer.py') at remote 0x7fffe9d60e20>, '__spec__': None, '__annotations__': {}, '__builtins__': <module at remote 0x7ffff74e3830>, '__file__': '/tmp/reproducer.py', '__cached__': None, 'flask': <module at remote 0x7fffe9dcc290>, 'app': <Flask(import_name='flask_test', _static_folder='static', _static_url_path=None, template_folder='templates', root_path='/tmp', cli=<AppGroup(name='flask_test', context_settings={}, callback=None, params=[], help=None, epilog=None, options_metavar='[OPTIONS]', short_help=None, add_help_option=True, no_args_is_help=True, hidden=False, deprecated=False, invoke_without_command=False, subcommand_metavar='COMMAND [ARGS]...', chain=False, _result_callback=None, commands={}) at remote 0x7fffe8709eb0>, view_functions={'static': <function at remote 0x7fffe8adb1d0>, 'index': <function at remote 0x7fffe87559d0>}, err...(truncated), args=0x0,
argcount=0, kwnames=0x0) at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Python/ceval.c:1788
#14 0x00007ffff7af6edd in PyEval_EvalCode (co=<code at remote 0x5555555ece50>,
globals={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/tmp/reproducer.py') at remote 0x7fffe9d60e20>, '__spec__': None, '__annotations__': {}, '__builtins__': <module at remote 0x7ffff74e3830>, '__file__': '/tmp/reproducer.py', '__cached__': None, 'flask': <module at remote 0x7fffe9dcc290>, 'app': <Flask(import_name='flask_test', _static_folder='static', _static_url_path=None, template_folder='templates', root_path='/tmp', cli=<AppGroup(name='flask_test', context_settings={}, callback=None, params=[], help=None, epilog=None, options_metavar='[OPTIONS]', short_help=None, add_help_option=True, no_args_is_help=True, hidden=False, deprecated=False, invoke_without_command=False, subcommand_metavar='COMMAND [ARGS]...', chain=False, _result_callback=None, commands={}) at remote 0x7fffe8709eb0>, view_functions={'static': <function at remote 0x7fffe8adb1d0>, 'index': <function at remote 0x7fffe87559d0>}, err...(truncated),
locals={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/tmp/reproducer.py') at remote 0x7fffe9d60e20>, '__spec__': None, '__annotations__': {}, '__builtins__': <module at remote 0x7ffff74e3830>, '__file__': '/tmp/reproducer.py', '__cached__': None, 'flask': <module at remote 0x7fffe9dcc290>, 'app': <Flask(import_name='flask_test', _static_folder='static', _static_url_path=None, template_folder='templates', root_path='/tmp', cli=<AppGroup(name='flask_test', context_settings={}, callback=None, params=[], help=None, epilog=None, options_metavar='[OPTIONS]', short_help=None, add_help_option=True, no_args_is_help=True, hidden=False, deprecated=False, invoke_without_command=False, subcommand_metavar='COMMAND [ARGS]...', chain=False, _result_callback=None, commands={}) at remote 0x7fffe8709eb0>, view_functions={'static': <function at remote 0x7fffe8adb1d0>, 'index': <function at remote 0x7fffe87559d0>}, err...(truncated))
at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Python/ceval.c:592
#15 0x00007ffff7bcd505 in run_eval_code_obj (tstate=0x7ffff7f2a8b8 <_PyRuntime+247704>, co=0x5555555ece50,
globals={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/tmp/reproducer.py') at remote 0x7fffe9d60e20>, '__spec__': None, '__annotations__': {}, '__builtins__': <module at remote 0x7ffff74e3830>, '__file__': '/tmp/reproducer.py', '__cached__': None, 'flask': <module at remote 0x7fffe9dcc290>, 'app': <Flask(import_name='flask_test', _static_folder='static', _static_url_path=None, template_folder='templates', root_path='/tmp', cli=<AppGroup(name='flask_test', context_settings={}, callback=None, params=[], help=None, epilog=None, options_metavar='[OPTIONS]', short_help=None, add_help_option=True, no_args_is_help=True, hidden=False, deprecated=False, invoke_without_command=False, subcommand_metavar='COMMAND [ARGS]...', chain=False, _result_callback=None, commands={}) at remote 0x7fffe8709eb0>, view_functions={'static': <function at remote 0x7fffe8adb1d0>, 'index': <function at remote 0x7fffe87559d0>}, err...(truncated),
locals={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/tmp/reproducer.py') at remote 0x7fffe9d60e20>, '__spec__': None, '__annotations__': {}, '__builtins__': <module at remote 0x7ffff74e3830>, '__file__': '/tmp/reproducer.py', '__cached__': None, 'flask': <module at remote 0x7fffe9dcc290>, 'app': <Flask(import_name='flask_test', _static_folder='static', _static_url_path=None, template_folder='templates', root_path='/tmp', cli=<AppGroup(name='flask_test', context_settings={}, callback=None, params=[], help=None, epilog=None, options_metavar='[OPTIONS]', short_help=None, add_help_option=True, no_args_is_help=True, hidden=False, deprecated=False, invoke_without_command=False, subcommand_metavar='COMMAND [ARGS]...', chain=False, _result_callback=None, commands={}) at remote 0x7fffe8709eb0>, view_functions={'static': <function at remote 0x7fffe8adb1d0>, 'index': <function at remote 0x7fffe87559d0>}, err...(truncated))
at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Python/pythonrun.c:1294
#16 0x00007ffff7bcd8d5 in run_mod (mod=0x55555561ffd0, filename='/tmp/reproducer.py',
globals={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/tmp/reproducer.py') at remote 0x7fffe9d60e20>, '__spec__': None, '__annotations__': {}, '__builtins__': <module at remote 0x7ffff74e3830>, '__file__': '/tmp/reproducer.py', '__cached__': None, 'flask': <module at remote 0x7fffe9dcc290>, 'app': <Flask(import_name='flask_test', _static_folder='static', _static_url_path=None, template_folder='templates', root_path='/tmp', cli=<AppGroup(name='flask_test', context_settings={}, callback=None, params=[], help=None, epilog=None, options_metavar='[OPTIONS]', short_help=None, add_help_option=True, no_args_is_help=True, hidden=False, deprecated=False, invoke_without_command=False, subcommand_metavar='COMMAND [ARGS]...', chain=False, _result_callback=None, commands={}) at remote 0x7fffe8709eb0>, view_functions={'static': <function at remote 0x7fffe8adb1d0>, 'index': <function at remote 0x7fffe87559d0>}, err...(truncated),
locals={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/tmp/reproducer.py') at remote 0x7fffe9d60e20>, '__spec__': None, '__annotations__': {}, '__builtins__': <module at remote 0x7ffff74e3830>, '__file__': '/tmp/reproducer.py', '__cached__': None, 'flask': <module at remote 0x7fffe9dcc290>, 'app': <Flask(import_name='flask_test', _static_folder='static', _static_url_path=None, template_folder='templates', root_path='/tmp', cli=<AppGroup(name='flask_test', context_settings={}, callback=None, params=[], help=None, epilog=None, options_metavar='[OPTIONS]', short_help=None, add_help_option=True, no_args_is_help=True, hidden=False, deprecated=False, invoke_without_command=False, subcommand_metavar='COMMAND [ARGS]...', chain=False, _result_callback=None, commands={}) at remote 0x7fffe8709eb0>, view_functions={'static': <function at remote 0x7fffe8adb1d0>, 'index': <function at remote 0x7fffe87559d0>}, err...(truncated),
flags=0x7fffffffd318, arena=0x7fffe9daf700, interactive_src=0x0, generate_new_source=0)
at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Python/pythonrun.c:1379
#17 0x00007ffff7bcd2e2 in pyrun_file (fp=0x5555555851b0, filename='/tmp/reproducer.py', start=257,
globals={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/tmp/reproducer.py') at remote 0x7fffe9d60e20>, '__spec__': None, '__annotations__': {}, '__builtins__': <module at remote 0x7ffff74e3830>, '__file__': '/tmp/reproducer.py', '__cached__': None, 'flask': <module at remote 0x7fffe9dcc290>, 'app': <Flask(import_name='flask_test', _static_folder='static', _static_url_path=None, template_folder='templates', root_path='/tmp', cli=<AppGroup(name='flask_test', context_settings={}, callback=None, params=[], help=None, epilog=None, options_metavar='[OPTIONS]', short_help=None, add_help_option=True, no_args_is_help=True, hidden=False, deprecated=False, invoke_without_command=False, subcommand_metavar='COMMAND [ARGS]...', chain=False, _result_callback=None, commands={}) at remote 0x7fffe8709eb0>, view_functions={'static': <function at remote 0x7fffe8adb1d0>, 'index': <function at remote 0x7fffe87559d0>}, err...(truncated),
locals={'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <SourceFileLoader(name='__main__', path='/tmp/reproducer.py') at remote 0x7fffe9d60e20>, '__spec__': None, '__annotations__': {}, '__builtins__': <module at remote 0x7ffff74e3830>, '__file__': '/tmp/reproducer.py', '__cached__': None, 'flask': <module at remote 0x7fffe9dcc290>, 'app': <Flask(import_name='flask_test', _static_folder='static', _static_url_path=None, template_folder='templates', root_path='/tmp', cli=<AppGroup(name='flask_test', context_settings={}, callback=None, params=[], help=None, epilog=None, options_metavar='[OPTIONS]', short_help=None, add_help_option=True, no_args_is_help=True, hidden=False, deprecated=False, invoke_without_command=False, subcommand_metavar='COMMAND [ARGS]...', chain=False, _result_callback=None, commands={}) at remote 0x7fffe8709eb0>, view_functions={'static': <function at remote 0x7fffe8adb1d0>, 'index': <function at remote 0x7fffe87559d0>}, err...(truncated), closeit=1,
flags=0x7fffffffd318) at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Python/pythonrun.c:1215
#18 0x00007ffff7bcb69d in _PyRun_SimpleFileObject (fp=0x5555555851b0, filename='/tmp/reproducer.py', closeit=1, flags=0x7fffffffd318)
at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Python/pythonrun.c:464
#19 0x00007ffff7bcaa1c in _PyRun_AnyFileObject (fp=0x5555555851b0, filename='/tmp/reproducer.py', closeit=1, flags=0x7fffffffd318)
at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Python/pythonrun.c:77
#20 0x00007ffff7c033cb in pymain_run_file_obj (program_name='/tmp/venv3.13d/bin/python',
filename='/tmp/reproducer.py', skip_source_first_line=0) at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Modules/main.c:357
#21 0x00007ffff7c034a5 in pymain_run_file (config=0x7ffff7f05838 <_PyRuntime+96024>)
at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Modules/main.c:376
#22 0x00007ffff7c03d17 in pymain_run_python (exitcode=0x7fffffffd4b4) at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Modules/main.c:628
#23 0x00007ffff7c03e5c in Py_RunMain () at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Modules/main.c:707
#24 0x00007ffff7c03f32 in pymain_main (args=0x7fffffffd530) at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Modules/main.c:737
#25 0x00007ffff7c03ffa in Py_BytesMain (argc=4, argv=0x7fffffffd6a8) at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Modules/main.c:761
#26 0x000055555555517d in main (argc=4, argv=0x7fffffffd6a8) at /usr/src/debug/python3.13-3.13.0~a4-1.fc39.x86_64/Programs/python.c:15
```
### CPython versions tested on:
3.13
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-115740
<!-- /gh-linked-prs -->
| 520403ed4cdf4890d63403c9cf01ac63233f5ef4 | 494739e1f71f8e290a2c869d4f40f4ea36a045c2 |
python/cpython | python__cpython-115726 | # Show number of leaks in --huntrleaks
# Feature or enhancement
Currently, `-R` (`--huntrleaks`) only displays the reference counts when the test fails. It also uses a [generous heuristic](https://github.com/python/cpython/issues/74959), which avoid false positives, but might hide issues.
To get more insight into what's going on, I propose to show the number of leaks instead of the *dot*, with
- `.` instead of `0`, so leaks stand out
- `X` instead of 10 or more, to keep the display as a single digit
Additionally, I'd like to separate warmup runs, so you know when to start worrying.
The output would look like this:
```
beginning 9 repetitions. Showing number of leaks (. for zero, X for 10 or more)
12345:6789
XX.1. ....
```
meaning the first 2 warmups “leaked” a lot, then one more had a single “leak”, and there were no more leaks.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115726
<!-- /gh-linked-prs -->
| af5f9d682c20c951b90e3c020eeccac386c9bbb0 | 6087315926fb185847a52559af063cc7d337d978 |
python/cpython | python__cpython-115757 | # On WASI, time.process_time is not in seconds
In a fresh WASI build, `time.process_time`, which should be in seconds, counts 10⁶ times faster than `time.time`:
```
>>> import time
>>> time.time(); time.process_time()
1708435312.596558
4775079350.12
>>> time.time(); time.process_time()
1708435313.0949461
4780063256.54
>>> time.get_clock_info('process_time')
namespace(implementation='clock_gettime(CLOCK_PROCESS_CPUTIME_ID)', monotonic=True, adjustable=False, resolution=1e-09)
```
It looks like [WASI might remove `CLOCK_PROCESS_CPUTIME_ID`](https://github.com/WebAssembly/wasi-libc/issues/266). Should we wait for that? Remove it from Python sooner? Work around the issue?
(Codespaces has an “unexpected error” for me right now, so I built the container from `.devcontainer/Dockerfile` directly. Hope that doesn't affect the result.)
<!-- gh-linked-prs -->
### Linked PRs
* gh-115757
<!-- /gh-linked-prs -->
| 8aa372edcd857d2fbec8da0cb993de15b4179308 | baae73d7307214ee97abbe80aaa8c1c773a6f682 |
python/cpython | python__cpython-115721 | # CSV dialect with delimiter=' ' and skipinitialspace=True
# Bug report
Combination of `delimiter=' '` and `skipinitialspace=True` was considered illegal in #113796, because it is ambiguous in case of empty fields. But there may be a use case for this, when the input is a preformatted table with a series of spaces considered as a delimiter:
```
apples red 100
bananas yellow 3
```
Empty fields are not compatible with such format, so the writer should either quote them, or fail if quoting is not possible.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115721
* gh-115729
* gh-115738
<!-- /gh-linked-prs -->
| 937d2821501de7adaa5ed8491eef4b7f3dc0940a | cc82e33af978df793b83cefe4e25e07223a3a09e |
python/cpython | python__cpython-118639 | # Type propagation does not account for the setting local variables via `frame.f_locals` in a debugger or similar.
# Bug report
### Bug description:
Consider
```Py
def testfunc(loops):
for _ in range(loops):
a = 1
a + a
a + a
change_a()
a + a
```
and suppose that `change_a` manages to change the value of the local `a` to `"a"`.
Specialization will have converted the subsequent `a + a` to integer addition, and type propagation will have stripped the guard, resulting in a crash.
This is incredibly unlikely, and very hard to come up with a test for but it is theoretically possible.
It may be become more likely (and easier to test for) if PEP 667 is accepted.
<!-- gh-linked-prs -->
### Linked PRs
* gh-118639
<!-- /gh-linked-prs -->
| 616b745b89a52a1d27123107718f85e65918afdc | 00d913c6718aa365027c6dcf850e8f40731e54fc |
python/cpython | python__cpython-115708 | # `PCbuild\build.bat` script cannot generate `Python\generated_cases.c.h` files and so on
# Bug report
### Bug description:
When I ran the script `PCbuild/build.bat` with and without the `--regen` argument, it could not regenerate `Python\generated_cases.c.h` file. I found the files in `Tools\cases_generateor` changed. Is it the reason why the script fail?
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-115708
<!-- /gh-linked-prs -->
| a2bb8ad14409c7ecb8dea437b0e281eb1f65b5d8 | 626c414995bad1dab51c7222a6f7bf388255eb9e |
python/cpython | python__cpython-115693 | # Increase coverage of `json` module
I'll open a PR to increase some test coverage, following https://devguide.python.org/testing/coverage/
For my own reference, here's a one-liner to run tests and generate HTML coverage report:
`python -m coverage run --pylib --branch --source=json Lib/test/regrtest.py test_json -v && python -m coverage html -i --include="Lib/*" --omit="Lib/test/*,Lib/*/tests/*"`
<!-- gh-linked-prs -->
### Linked PRs
* gh-115693
* gh-117867
<!-- /gh-linked-prs -->
| 8fc953f606cae5545a4d766dc3031316646b014a | 9c93b7402ba11d1d68e856516e56ca72989a7db9 |
python/cpython | python__cpython-115688 | # Type/value propagate through COMPARE_OP
- [x] Split up into uops
- [x] Propagate bool value and constants too.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115688
* gh-116360
<!-- /gh-linked-prs -->
| dcba21f905ef170b2cd0a6433b6fe6bcb4316a67 | a2bb8ad14409c7ecb8dea437b0e281eb1f65b5d8 |
python/cpython | python__cpython-115686 | # Type/value propagation for `TO_BOOL`
* [x] Normal _TO_BOOL specializations and friends.
* [x] TO_BOOL_ALWAYS_TRUE (only if it's worth it?)
<!-- gh-linked-prs -->
### Linked PRs
* gh-115686
* gh-116311
* gh-116352
<!-- /gh-linked-prs -->
| d01886c5c9e3a62921b304ba7e5145daaa56d3cf | c04a981ff414b101736688773dbe24f824ca32ce |
python/cpython | python__cpython-116519 | # datetime.date.replace() description not clear enough
# Documentation
In documentation explanation to command date.replace() is not clear enough.
I'm not that experienced, so it's maybe look from junior perspective, but since documentation quite needed for beginers i think my opinion might be valuable.
In documentation description to this function says "Return a date with the same value, except for those parameters given new values by whichever keyword arguments are specified." and gives an examle:
```python
--- from datetime import date
--- d = date(2002, 12, 31)
--- d.replace(day=26)
datetime.date(2002, 12, 26)
```
But it confused me, since it looks like you can change datetime object and as documentation says - datetime objects are immutable, so i had to check and of course you can't change variable like that, the only way that works if you create a new variable (for example: d2 = d.replace(day=26))
So i propose to make this part that there won't be any confusion for anyone by rephrasing it.
For example:
Return a new date object with the same value as initial, except for those parameters given new values by whichever keyword arguments are specified.
```python
--- from datetime import date
--- d = date(2002, 12, 31)
--- d2 = d.replace(day=26)
--- d2
datetime.date(2002, 12, 26)
```
I haven't seen any tickets issued about this one, but i apologise if there is and i've missed it, or if i miss something in documentation itself.
<!-- gh-linked-prs -->
### Linked PRs
* gh-116519
* gh-131676
* gh-131683
* gh-131694
<!-- /gh-linked-prs -->
| d2d886215cf694d5f3e7f0cbd76507a96bac322b | d716ea34cb8a105e8e39a1ddfd610c3c0f11a0e7 |
python/cpython | python__cpython-115665 | # Fix the use of versionadded and versionchanged directives
While reviewing the PR for #115652 I noticed other errors in multiprocessing.rst: incorrect order of `versionchanged` directives, using `versionadded` instead of `versionchanged`, misusing the term "argument" instead of "parameter". Then I tried to search similar errors in other files, and found tens possible candidates. So I opened an issue to fix all these errors.
`versionadded` indicates when the entity (module, class, function, method, attribute, etc) was added. It should be aligned with the description of the entity.
`versionchanged` indicates when the behavior of the entity was changed, including adding or removal of parameters or support of protocols. When a new parameter is added to the function or when the class starts supporting the context manager protocol, `versionchanged` should be used. If a new attribute or method was added, but they do not have their own entry, `versionchanged` can be used, applied to the parent class.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115665
* gh-115676
* gh-115677
* gh-115678
* gh-115681
* gh-115682
* gh-116298
* gh-116304
* gh-116450
* gh-116452
* gh-116456
* gh-117900
<!-- /gh-linked-prs -->
| 8f602981ba95273f036968cfc5ac28fdcd1808fa | b02ab65e8083185b76a7dd06f470b779580a3b03 |
python/cpython | python__cpython-115790 | # Tools/build/generate_sbom.py fails if `expat` and `_decimal/libmpdec/**` are configured to come from the system
# Bug report
### Bug description:
I try to build Python 3.13.0a4 for Fedora Linux, but unsuccessfully.
`expat` and `_decimal/libmpdec` are removed from our version of Python. We configure it with the options `--with-system-expat` and `--with-system-libmpdec`.
The traceback:
```pytb
$ python3.13 /builddir/build/BUILD/Python-3.13.0a4/Tools/build/generate_sbom.py
fatal: no path specified
Traceback (most recent call last):
File "/builddir/build/BUILD/Python-3.13.0a4/Tools/build/generate_sbom.py", line 228, in <module>
main()
~~~~^^
File "/builddir/build/BUILD/Python-3.13.0a4/Tools/build/generate_sbom.py", line 190, in main
paths = filter_gitignored_paths(paths)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^
File "/builddir/build/BUILD/Python-3.13.0a4/Tools/build/generate_sbom.py", line 121, in filter_gitignored_paths
assert git_check_ignore_proc.returncode in (0, 1)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError
make: *** [Makefile:2885: regen-sbom] Error 1
```
`paths` for the removed Modules resolves to an empty list, this is passed to the subprocess invoking git which ends with return code 128, hence assertion error visible above.
generate_sbom, if really has to be a part of `regen all`, should not require the presence of those libraries if Python is configured without them.
### CPython versions tested on:
3.13
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-115790
* gh-115820
<!-- /gh-linked-prs -->
| c6a47de70966e6899871245e800a0a9271e25b12 | 96c1737591b45bc1c528df1103eb0e500751fefe |
python/cpython | python__cpython-115654 | # Missing documentation for public C-API function
# Documentation
There are no documentation for the ```PyCode_GetFirstFree``` and incorrect return type for ```PyCode_GetNumFree```
<!-- gh-linked-prs -->
### Linked PRs
* gh-115654
* gh-115752
<!-- /gh-linked-prs -->
| 10fc4675fdb14e19f2fdd15102c6533b9f71e992 | 77430b6a329bb04ca884d08afefda25112372afa |
python/cpython | python__cpython-115658 | # Indentation in the documentation of multiprocessing.get_start_method
# Documentation
There is a problem with the indentation in the documentation of [`multiprocessing.get_start_method`](https://docs.python.org/3/library/multiprocessing.html#multiprocessing.get_start_method). "Changed in version 3.8: [...]" and "New in version 3.4." should be indented.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115658
* gh-115659
* gh-115660
<!-- /gh-linked-prs -->
| d504968983c5cd5ddbdf73ccd3693ffb89e7952f | aa8c1a0d1626b5965c2f3a1d5af15acbb110eac1 |
python/cpython | python__cpython-115711 | # Convert `LOAD_ATTR_MODULE` to a constant where the module is already a constant
Expressions like `mod.attr`, where `mod` is a module, are in almost all cases effectively constants.
We should optimize them as such.
We already treat the `mod` as a constant, so it is a relatively simple step to treat `mod.attr` as a constant.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115711
<!-- /gh-linked-prs -->
| b348313e7a48811acacc293ac4b2c8b20b4c631b | c6a47de70966e6899871245e800a0a9271e25b12 |
python/cpython | python__cpython-115628 | # `PySSL_SetError` needs to be updated
# Bug report
### Bug description:
It was dealt with other issues before, but the contents are not intuitive, so I rearrange them.
The `SSL_write()` and `SSL_read()` used in python 3.9 were modified from python 3.10 to `SSL_write_ex()` and `SSL_read_ex()`, and the return value was fixed to 0 on error. However, in `PySSL_SetError`, there is no update accordingly, so this part needs to be modified.
Related issue can be referred to the following link.
[OpenSSL 1.1.1: use SSL_write_ex() and SSL_read_ex()](https://github.com/python/cpython/issues/87020)
The difference between `SSL_write()` and `SSL_write_ex()` is as follows.
```c
int SSL_write(SSL *s, const void *buf, int num)
{
int ret;
size_t written;
if (num < 0) {
ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
return -1;
}
ret = ssl_write_internal(s, buf, (size_t)num, 0, &written);
/*
* The cast is safe here because ret should be <= INT_MAX because num is
* <= INT_MAX
*/
if (ret > 0)
ret = (int)written;
return ret;
}
```
`SSL_write()` has a return value of 0 or less when an error occurs.
```c
int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written)
{
return SSL_write_ex2(s, buf, num, 0, written);
}
int SSL_write_ex2(SSL *s, const void *buf, size_t num, uint64_t flags,
size_t *written)
{
int ret = ssl_write_internal(s, buf, num, flags, written);
if (ret < 0)
ret = 0;
return ret;
}
```
`SSL_write_ex()` is fixed to 0 when an error occurs. As the return value changes, the behavior of the `PySSL_SetError` function changes.
https://github.com/python/cpython/blob/f9154f8f237e31e7c30f8698f980bee5e494f1e0/Modules/_ssl.c#L648
```c
case SSL_ERROR_SYSCALL:
{
if (e == 0) {
PySocketSockObject *s = GET_SOCKET(sslsock);
if (ret == 0 || (((PyObject *)s) == Py_None)) {
p = PY_SSL_ERROR_EOF;
type = state->PySSLEOFErrorObject;
errstr = "EOF occurred in violation of protocol";
} else if (s && ret == -1) {
/* underlying BIO reported an I/O error */
ERR_clear_error();
#ifdef MS_WINDOWS
if (err.ws) {
return PyErr_SetFromWindowsErr(err.ws);
}
#endif
if (err.c) {
errno = err.c;
return PyErr_SetFromErrno(PyExc_OSError);
}
else {
p = PY_SSL_ERROR_EOF;
type = state->PySSLEOFErrorObject;
errstr = "EOF occurred in violation of protocol";
}
} else { /* possible? */
p = PY_SSL_ERROR_SYSCALL;
type = state->PySSLSyscallErrorObject;
errstr = "Some I/O error occurred";
}
} else {
if (ERR_GET_LIB(e) == ERR_LIB_SSL &&
ERR_GET_REASON(e) == SSL_R_CERTIFICATE_VERIFY_FAILED) {
type = state->PySSLCertVerificationErrorObject;
}
p = PY_SSL_ERROR_SYSCALL;
}
break;
}
```
According to the part `if (ret == 0 || ((PyObject *) == Py_None))`, the retrun of the function `SSL_write_ex()` is fixed to 0, resulting in `SSLEOFError` instead of `OSError`.
I determined that the change to this error was not intended. If the connection is terminated by the other peer, it is better for the user to respond to it by returning it as an error such as BrokenPIPE rather than an error that is a protocol rule violation.
The modifications affected by the change have been identified as follows.
https://github.com/python/cpython/pull/25553
- The behavior of the SSL test server for OSError has changed. ConnectionError did not previously shut down the server, but now it does.
- I think this is because the change has not been tested as OSError does not occur at write or read.
https://github.com/python/cpython/pull/25574
- It is believed that an intermittent EOF error occurred instead of an OSError.
https://github.com/python/cpython/pull/26520
- OSError has disappeared, only EOF errors have been handled.
Related issues are as follows.
https://github.com/python/cpython/issues/110467
https://github.com/urllib3/urllib3/issues/2733
### CPython versions tested on:
3.10, 3.11, 3.12, 3.13, CPython main branch
### Operating systems tested on:
Linux, macOS
<!-- gh-linked-prs -->
### Linked PRs
* gh-115628
* gh-117821
<!-- /gh-linked-prs --> | ea9a296fce2f786b4cf43c7924e5de01061f27ca | d52bdfb19fadd7614a0e5abaf68525fc7300e841 |
python/cpython | python__cpython-115619 | # Incorrect Py_XDECREFs in property
# Crash report
When `property` methods `getter()`, `setter()` or `deleter()` are called with None as argument, they call `Py_XDECREF()` on it. Now, when None is immortal, it perhaps have no effect, but in earlier Python versions it could have bad consequences. It was not reported earlier only because nobody normally calls them with None.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115619
* gh-115620
* gh-115621
<!-- /gh-linked-prs -->
| 090dd21ab9379d6a2a6923d6cbab697355fb7165 | aba37d451fabb44a7f478958ba117ae5b6ea54c0 |
python/cpython | python__cpython-115610 | # test_os permanently change the process priority
# Bug report
ProgramPriorityTests in test_os changes the process priority (makes it less prioritized in the scheduler) and then tries to restore the old value, why is fail unless the test is ran as root. It affects all further tests if run in sequential mode and all further tests in test_os if run in parallel mode. It can makes the testing process less responsible and make some tests (especially relying on timeouts or interruption) unstable.
This test should be run in a separate subprocess.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115610
* gh-115616
* gh-115617
<!-- /gh-linked-prs -->
| 90dd653a6122a6c5b4b1fe5abe773c4751e5ca25 | 437924465de5cb81988d1e580797b07090c26a28 |
python/cpython | python__cpython-115850 | # Python 3.13a4 ships with wrong pyconfig.h?
# Bug report
### Bug description:
Hello,
I tried to build a C-extension locally with python 3.13a4 and got the error `LINK : fatal error LNK1104: cannot open file 'python313t.lib'`.
(I got Python 3.13a4 from the python.org installer, tested Windows 32 and 64 bit).
After trying to install the free threaded builds using the new installer option, trying to build using those, and then installing everything fresh, I found that in `include/pyconfig.h`, there is a line `#define Py_GIL_DISABLED 1`. This line causes the compiler to look for python313t.lib instead of python313.lib, and commenting it out fixed the build.
It seems to me that the non-freethreaded build is shipping out with the wrong pyconfig.h setup.
This was reported by Pillow here: https://github.com/python-pillow/Pillow/pull/7805
They linked it to https://github.com/python/cpython/issues/115545, but I think that may be a different issue? The interpreters launch fine from the python.org install, they just don't seem to work for building C-extensions with.
Thank you.
### CPython versions tested on:
3.13
### Operating systems tested on:
Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-115850
<!-- /gh-linked-prs -->
| 37a13b941394a1337576c67bff35d4a44a1157e2 | 72cff8d8e5a476d3406efb0491452bf9d6b02feb |
python/cpython | python__cpython-117632 | # URI Netloc deprecated; replaced by Authority
# Documentation
cpython has several references to "netloc" (primarily in the [Lib](https://github.com/python/cpython/tree/3.12/Lib) and [urllib](https://github.com/python/cpython/tree/3.12/Lib/urllib) libraries). This term describes the network location and login information in a URI (Uniform Resource Indicator) as seen in [RFC 1808](https://www.rfc-editor.org/rfc/rfc1808), but has been outdated since 1998 and 2005 with the publishing of [RFC 2396](https://www.rfc-editor.org/rfc/rfc2396) and [RFC 3986](https://www.rfc-editor.org/rfc/rfc3986) which is the Internet Standard. The correct term for this URI component is "authority."
This excerpt from RFC 3986 shows the components of the URI:
```
The following are two example URIs and their component parts:
foo://example.com:8042/over/there?name=ferret#nose
\_/ \______________/\_________/ \_________/ \__/
| | | | |
scheme authority path query fragment
| _____________________|__
/ \ / \
urn:example:animal:ferret:nose
```
This update would require renaming all references of "netloc" and "net_loc" to "authority" or some abbreviation (E.g. "auth"). Because this would be a breaking change, it perhaps is not a documentation update. However, the other issue types didn't seem to fit. Thanks.
<!-- gh-linked-prs -->
### Linked PRs
* gh-117632
* gh-118656
<!-- /gh-linked-prs -->
| 3ed3bc379a0c4ce7a107dd4bc276554fbb477998 | 7528b84e947f727734bd802356e380673553387d |
python/cpython | python__cpython-115631 | # ``codeobject.replace`` function is undocumented
### Bug description:
``codeobject.replace`` function was introduced in a9f05d69ccbf3c75cdd604c25094282697789a62, but there's only a note in ``Doc/whatsnew``.
My folk @daler-sz would like to work on a fix :)
### CPython versions tested on:
3.11, 3.12, 3.13
### Operating systems tested on:
_No response_
<!-- gh-linked-prs -->
### Linked PRs
* gh-115631
* gh-115632
* gh-115633
<!-- /gh-linked-prs -->
| 0c80da4c14d904a367968955544dd6ae58c8101c | 371c9708863c23ddc716085198ab07fa49968166 |
python/cpython | python__cpython-115568 | # ``test_ctypes`` on Windows prints unnecessary information
# Bug report
### Bug description:
```python
./python -m test -R 3:3 test_ctypes
Running Debug|x64 interpreter...
Using random seed: 212491410
0:00:00 Run 1 test sequentially
0:00:00 [1/1] test_ctypes
beginning 6 repetitions
123456
a=5, b=10, c=15
a=5, b=10, c=15
.a=5, b=10, c=15
a=5, b=10, c=15
.a=5, b=10, c=15
a=5, b=10, c=15
.a=5, b=10, c=15
a=5, b=10, c=15
.a=5, b=10, c=15
a=5, b=10, c=15
.a=5, b=10, c=15
a=5, b=10, c=15
.
== Tests result: SUCCESS ==
1 test OK.
Total duration: 24.7 sec
Total tests: run=541 skipped=19
Total test files: run=1/1
Result: SUCCESS
```
### CPython versions tested on:
3.12, CPython main branch
### Operating systems tested on:
Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-115568
* gh-115609
<!-- /gh-linked-prs -->
| 265548a4eaaebc3fb379f85f2a919848927f09e5 | 04005f5021a17b191dae319faaadf1c942af3fe9 |
python/cpython | python__cpython-115557 | # Windows test scripts don't escape commas properly
In Windows batch file execution, a comma is one of the magic parameter delimiters. To pass a comma as parameter data, you have to use string quotes around that parameter, like:
```
.\Tools\buildbot\test.bat -M33g "-uall,extralargefile" test_zipfile64
```
However, now the quotes become part of the parameter. Inside `test.bat` we employ some command-line parsing and shifting, which requires us to *remove* the quotes from parameters, if any, for the code to continue working.
This is doubly complicated by the fact that `test.bat` passes execution to `rt.bat`, which does similar parsing there. The fix is needed there, too.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115557
<!-- /gh-linked-prs -->
| 711f42de2e3749208cfa7effa0d45b04e4e1fdd4 | 74e6f4b32fceea8e8ffb0424d9bdc6589faf7ee4 |
python/cpython | python__cpython-115793 | # Python Install Fails Due To Newer Launcher
# Bug report
### Bug description:
```python
# Add a code block here, if required
```
If you have a Windows machine with multiple versions of python installed the presence of a newer version of the installer can prevent updating the older python version installations.
For example installing in the following sequence, (all with `install py launcher` checked _(global or otherwise)_, tested with both 64 & 32 bit versions:
1. Python 3.11.7 _OK_
2. Python 3.12.1 _OK (Updates Launcher)_
3. Python 3.11.8 _Select Update or Customise with the py launcher ticked_ Part way through the install a pop-up is shown.
Select `OK` & Installation is wound back. Followed by:
The relevant section of the log reads:
```log
[D824:8A50][2024-02-16T07:58:01]i325: Registering dependency: {02717f5c-724f-48a7-86c0-ee11d4de681c} on package provider: {8EEE1658-8844-4DAD-8A3B-7AF321C9A4FD}, package: tcltk_JustForMe
[D824:8A50][2024-02-16T07:58:01]i301: Applying execute package: launcher_JustForMe, action: Install, path: C:\Users\Gadge\AppData\Local\Package Cache\{8DFCF17F-8C82-4E21-96F1-B1777F61A757}v3.11.8150.0\launcher.msi, arguments: ' MSIFASTINSTALL="7" ADDLOCAL="DefaultFeature,AssociateFiles"'
[D824:8A50][2024-02-16T07:59:54]e000: Error 0x80070643: Failed to install MSI package.
[D824:8A50][2024-02-16T07:59:54]e000: Error 0x80070643: Failed to configure per-user MSI package.
[D824:8A50][2024-02-16T07:59:54]i319: Applied execute package: launcher_JustForMe, result: 0x80070643, restart: None
[D824:8A50][2024-02-16T07:59:54]e000: Error 0x80070643: Failed to execute MSI package.
[D824:8A50][2024-02-16T07:59:54]i351: Removing cached package: launcher_JustForMe, from path: C:\Users\Gadge\AppData\Local\Package Cache\{8DFCF17F-8C82-4E21-96F1-B1777F61A757}v3.11.8150.0\
[D824:8A50][2024-02-16T07:59:54]i329: Removed package dependency provider: {9E9F28A9-A7A6-4483-842C-07579F9D7FDD}, package: tcltk_JustForMe_d
```
4. Running `py -0` results in:
```
$ py -0
-V:3.12 Python 3.12 (64-bit)
-V:3.10 Python 3.10 (64-bit)
-V:3.10-32 Python 3.10 (32-bit)
-V:3.9 Python 3.9 (64-bit)
```
So I have now lost my Python 3.11 installation! ***Not very happy at this point!***
5. Re-running the installer, selecting `Customize Installation` and unticking `py launcher` will allow a successful installation **but**:
- Many users may not realise this option will resolve the issue!
- In controlled environments *such as at my work* an `unattend.xml` file or install script may prevent the user changing this option.
# Possible Resolutions
There is more than one way that this issue could be handled. If a newer py launcher is present:
- Skip installing py launcher silently or with a message but not an error. Unlikely to actually cause a problem but may invalidate some test environments.
- Offer to downgrade py launcher or leave the newer one.
- Offer the option to skip py launcher or cancel install _(with warning that old installation may be lost)_.
### CPython versions tested on:
3.9, 3.10, 3.11, 3.12
### Operating systems tested on:
Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-115793
* gh-116200
* gh-116201
<!-- /gh-linked-prs -->
| 9b7f253b55f10df03d43c8a7c2da40ea523ac7a1 | 59167c962efcae72e8d88aa4b33062ed3de4f120 |
python/cpython | python__cpython-115544 | # py.exe launcher does not detect Windows Store 3.13 package
Need to update a few references - quite straightforward, but should be backported.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115544
* gh-115689
* gh-115690
<!-- /gh-linked-prs -->
| 6cd18c75a41a74cab69ebef0b7def3e48421bdd1 | 57d31ec3598429789492e0b3544efaaffca5799f |
python/cpython | python__cpython-115636 | # enum.Flag with a flag set to None raises an exception
# Bug report
### Bug description:
The following code snippet defines a `Flag` class denoting an unsupported flag with `None`.
```python
from enum import Flag
class TestFlag(Flag):
O_NONE = 0
O_ONE = 1
O_TWO = 2
O_FOUR = 4
O_NOT_SUPPORTED = None
```
While working fine on earlier Python versions, this code raises an exception on Python 3.11 and 3.12 without even instantiating the class.
The snippet above on Python 3.9:
```python
Python 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16:36:42) [MSC v.1929 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from enum import Flag
>>> class TestFlag(Flag):
... O_NONE = 0
... O_ONE = 1
... O_TWO = 2
... O_FOUR = 4
... O_NOT_SUPPORTED = None
...
>>>
```
Same snippet on Python 3.12:
```python
Python 3.12.2 (tags/v3.12.2:6abddd9, Feb 6 2024, 21:26:36) [MSC v.1937 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from enum import Flag
>>> class TestFlag(Flag):
... O_NONE = 0
... O_ONE = 1
... O_TWO = 2
... O_FOUR = 4
... O_NOT_SUPPORTED = None
...
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.12_3.12.752.0_x64__qbz5n2kfra8p0\Lib\enum.py", line 593, in __new__
raise exc.with_traceback(tb)
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.12_3.12.752.0_x64__qbz5n2kfra8p0\Lib\enum.py", line 583, in __new__
enum_class = super().__new__(metacls, cls, bases, classdict, **kwds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.12_3.12.752.0_x64__qbz5n2kfra8p0\Lib\enum.py", line 286, in __set_name__
enum_class._flag_mask_ |= value
TypeError: unsupported operand type(s) for |=: 'int' and 'NoneType'
>>>
```
Works on:
- Python 3.8 (Windows and Linux)
- Python 3.9 (Windows and Linux)
Fails on:
- Python 3.11 (Windows, Linux not tested)
- Python 3.12 (Windows and Linux)
### CPython versions tested on:
3.8, 3.9, 3.11, 3.12
### Operating systems tested on:
Linux, Windows
<!-- gh-linked-prs -->
### Linked PRs
* gh-115636
* gh-115694
* gh-115695
<!-- /gh-linked-prs -->
| c2cb31bbe1262213085c425bc853d6587c66cae9 | 6cd18c75a41a74cab69ebef0b7def3e48421bdd1 |
python/cpython | python__cpython-116925 | # Windows debug main test_os, test_venv failures
`python -m test -uall test_os`
```
test test_os failed -- Traceback (most recent call last):
File "f:\dev\3x\Lib\test\test_os.py", line 2229, in test_fdopen
self.check_bool(os.fdopen, encoding="utf-8")
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "f:\dev\3x\Lib\test\test_os.py", line 2224, in check_bool
with self.assertRaises(RuntimeWarning):
f(fd, *args, **kwargs)
AssertionError: RuntimeWarning not raised
```
`python -m test.test_os` crash box EDIT: this is with direct unittest run
```
minkernal\crts\ucrt\src\appcrt\lowio\isatty.cpp
Assertion failed (fh>=0 && (unsigned)fh < (unsigned)_nhandle
```
`python -m test test_venv`
```
Traceback (most recent call last):
File "f:\dev\3x\Lib\multiprocessing\process.py", line 314, in _bootstrap
self.run()
~~~~~~~~^^
File "f:\dev\3x\Lib\multiprocessing\process.py", line 108, in run
self._target(*self._args, **self._kwargs)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "f:\dev\3x\Lib\test\_test_venv_multiprocessing.py", line 10, in drain_queue
if code != queue.get():
~~~~~~~~~^^
File "f:\dev\3x\Lib\multiprocessing\queues.py", line 102, in get
with self._rlock:
res = self._recv_bytes()
File "f:\dev\3x\Lib\multiprocessing\synchronize.py", line 98, in __exit__
return self._semlock.__exit__(*args)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^
OSError: [WinError 6] The handle is invalid
```
```
test test_venv failed -- Traceback (most recent call last):
File "f:\dev\3x\Lib\test\test_venv.py", line 277, in test_prefixes
self.assertEqual(out.strip(), expected.encode(), prefix)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: b'f:\\dev\\3x' != b'f:\\dev\\3x\\' : base_prefix
```
`python -m test -uall -v test_venv` hangs with test_with_pip (test.test_venv.EnsurePipTest.test_with_pip)
`python -m test.test_venv -vv` shows traceback and then hangs
<!-- gh-linked-prs -->
### Linked PRs
* gh-116925
* gh-117065
* gh-117076
* gh-117116
* gh-117263
* gh-117264
* gh-117265
* gh-117461
* gh-117462
<!-- /gh-linked-prs -->
| cd2ed917801b93fb46d1dcf19dd480e5146932d8 | 43c9d6196a8593ebd1fda221a277dccb984e84b6 |
python/cpython | python__cpython-115863 | # Add kernel density estimation to the statistics module
# Feature
### Proposal:
I propose promoting the KDE statistics recipe to be an actual part of the statistics module.
See: https://docs.python.org/3.13/library/statistics.html#kernel-density-estimation
My thought Is that it is an essential part of statistical reasoning about sample data
See: https://www.itm-conferences.org/articles/itmconf/pdf/2018/08/itmconf_sam2018_00037.pdf
### Discussion of this feature:
This was discussed and reviewed with the module author who gave it his full support:
> This looks really great, both as a concept and the code itself. It's a
> good showcase for match, and an important statistics function.
>
> Thank you for working on this.
### Working Draft:
```python
from typing import Sequence, Callable
from bisect import bisect_left, bisect_right
from math import sqrt, exp, cos, pi, cosh
def kde(sample: Sequence[float],
h: float,
kernel_function: str='gauss',
) -> Callable[[float], float]:
"""Kernel Density Estimation. Creates a continuous probability
density function from discrete samples.
The basic idea is to smooth the data using a kernel function
to help draw inferences about a population from a sample.
The degree of smoothing is controlled by the scaling parameter h
which is called the bandwidth. Smaller values emphasize local
features while larger values give smoother results.
Kernel functions that give some weight to every sample point:
gauss or normal
logistic
sigmoid
Kernel functions that only give weight to sample points within
the bandwidth:
rectangular or uniform
triangular
epanechnikov or parabolic
biweight or quartic
triweight
cosine
Example
-------
Given a sample of six data points, estimate the
probablity density at evenly spaced points from -6 to 10:
>>> sample = [-2.1, -1.3, -0.4, 1.9, 5.1, 6.2]
>>> f_hat = kde(sample, h=1.5)
>>> total = 0.0
>>> for x in range(-6, 11):
... density = f_hat(x)
... total += density
... plot = ' ' * int(density * 400) + 'x'
... print(f'{x:2}: {density:.3f} {plot}')
...
-6: 0.002 x
-5: 0.009 x
-4: 0.031 x
-3: 0.070 x
-2: 0.111 x
-1: 0.125 x
0: 0.110 x
1: 0.086 x
2: 0.068 x
3: 0.059 x
4: 0.066 x
5: 0.082 x
6: 0.082 x
7: 0.058 x
8: 0.028 x
9: 0.009 x
10: 0.002 x
>>> round(total, 3)
0.999
References
----------
Kernel density estimation and its application:
https://www.itm-conferences.org/articles/itmconf/pdf/2018/08/itmconf_sam2018_00037.pdf
Kernel functions in common use:
https://en.wikipedia.org/wiki/Kernel_(statistics)#Kernel_functions_in_common_use
Interactive graphical demonstration and exploration:
https://demonstrations.wolfram.com/KernelDensityEstimation/
"""
kernel: Callable[[float], float]
support: float | None
match kernel_function:
case 'gauss' | 'normal':
c = 1 / sqrt(2 * pi)
kernel = lambda t: c * exp(-1/2 * t * t)
support = None
case 'logistic':
# 1.0 / (exp(t) + 2.0 + exp(-t))
kernel = lambda t: 1/2 / (1.0 + cosh(t))
support = None
case 'sigmoid':
# (2/pi) / (exp(t) + exp(-t))
c = 1 / pi
kernel = lambda t: c / cosh(t)
support = None
case 'rectangular' | 'uniform':
kernel = lambda t: 1/2
support = 1.0
case 'triangular':
kernel = lambda t: 1.0 - abs(t)
support = 1.0
case 'epanechnikov' | 'parabolic':
kernel = lambda t: 3/4 * (1.0 - t * t)
support = 1.0
case 'biweight' | 'quartic':
kernel = lambda t: 15/16 * (1.0 - t * t) ** 2
support = 1.0
case 'triweight':
kernel = lambda t: 35/32 * (1.0 - t * t) ** 3
support = 1.0
case 'cosine':
c1 = pi / 4
c2 = pi / 2
kernel = lambda t: c1 * cos(c2 * t)
support = 1.0
case _:
raise ValueError(f'Unknown kernel function: {kernel_function!r}')
n = len(sample)
if support is None:
def pdf(x: float) -> float:
return sum(kernel((x - x_i) / h) for x_i in sample) / (n * h)
else:
sample = sorted(sample)
bandwidth = h * support
def pdf(x: float) -> float:
i = bisect_left(sample, x - bandwidth)
j = bisect_right(sample, x + bandwidth)
supported = sample[i : j]
return sum(kernel((x - x_i) / h) for x_i in supported) / (n * h)
return pdf
def _test() -> None:
from statistics import NormalDist
def kde_normal(sample: Sequence[float], h: float) -> Callable[[float], float]:
"Create a continuous probability density function from a sample."
# Smooth the sample with a normal distribution kernel scaled by h.
kernel_h = NormalDist(0.0, h).pdf
n = len(sample)
def pdf(x: float) -> float:
return sum(kernel_h(x - x_i) for x_i in sample) / n
return pdf
D = NormalDist(250, 50)
data = D.samples(100)
h = 30
pd = D.pdf
fg = kde(data, h, 'gauss')
fg2 = kde_normal(data, h)
fr = kde(data, h, 'rectangular')
ft = kde(data, h, 'triangular')
fb = kde(data, h, 'biweight')
fe = kde(data, h, 'epanechnikov')
fc = kde(data, h, 'cosine')
fl = kde(data, h, 'logistic')
fs = kde(data, h, 'sigmoid')
def show(x: float) -> None:
for func in (pd, fg, fg2, fr, ft, fb, fe, fc, fl, fs):
print(func(x))
print()
show(197)
show(255)
show(320)
def integrate(func: Callable[[float], float],
low: float, high: float, steps: int=1000) -> float:
width = (high - low) / steps
xarr = (low + width * i for i in range(steps))
return sum(map(func, xarr)) * width
print('\nIntegrals:')
for func in (pd, fg, fg2, fr, ft, fb, fe, fc, fl, fs):
print(integrate(func, 0, 500, steps=10_000))
if __name__ == '__main__':
import doctest
_test()
print(doctest.testmod())
```
<!-- gh-linked-prs -->
### Linked PRs
* gh-115863
* gh-117897
* gh-118210
<!-- /gh-linked-prs -->
| 6d34eb0e36d3a7edd9e7629f21da39b6a74b8f68 | 6a3236fe2e61673cf9f819534afbf14a18678408 |
python/cpython | python__cpython-128037 | # Spurious "Exception in callback None()" after upgrading to 3.12
# Bug report
### Bug description:
Hello, after upgrading our application to 3.12.1 that uses aiohttp to download stuff via HTTPS as well as connects to some RabbitMQ servers via ssl, we get this spurious exception to stderr, dozens-hundres of them in close succession.
They happen after several minutes of running (so after dozens of ssl connections are used).
Unfortunately, I can't tell what is the culprit, the trace contains nothing other than the runtime :( I can provide more info if you give me some pointers on where to look. It looks like write-after-close, but the "writing" is done by internal asyncio mechanisms.
```
Exception in callback None()
handle: <Handle created at /usr/local/lib/python3.12/asyncio/selector_events.py:313>
source_traceback: Object created at (most recent call last):
File "/usr/local/lib/python3.12/asyncio/base_events.py", line 671, in run_until_complete
self.run_forever()
File "/usr/local/lib/python3.12/asyncio/base_events.py", line 638, in run_forever
self._run_once()
File "/usr/local/lib/python3.12/asyncio/base_events.py", line 1963, in _run_once
handle._run()
File "/usr/local/lib/python3.12/asyncio/events.py", line 84, in _run
self._context.run(self._callback, *self._args)
File "/usr/local/lib/python3.12/asyncio/selector_events.py", line 1111, in _write_sendmsg
self._maybe_resume_protocol() # May append to buffer.
File "/usr/local/lib/python3.12/asyncio/transports.py", line 300, in _maybe_resume_protocol
self._protocol.resume_writing()
File "/usr/local/lib/python3.12/asyncio/sslproto.py", line 907, in resume_writing
self._process_outgoing()
File "/usr/local/lib/python3.12/asyncio/sslproto.py", line 715, in _process_outgoing
self._transport.write(data)
File "/usr/local/lib/python3.12/asyncio/selector_events.py", line 1084, in write
self._loop._add_writer(self._sock_fd, self._write_ready)
File "/usr/local/lib/python3.12/asyncio/selector_events.py", line 313, in _add_writer
handle = events.Handle(callback, args, self, None)
```
### CPython versions tested on:
3.12
### Operating systems tested on:
Linux
<!-- gh-linked-prs -->
### Linked PRs
* gh-128037
* gh-129581
* gh-129582
<!-- /gh-linked-prs -->
| 4e38eeafe2ff3bfc686514731d6281fed34a435e | 853a6b7de222964d8cd0e9478cb5c78d490032e6 |
python/cpython | python__cpython-115504 | # `run_presite`'s error handling is wrong
# Bug report
https://github.com/python/cpython/blob/474204765bdbdd4bc84a8ba49d3a6558e9e4e3fd/Python/pylifecycle.c#L1106-L1113
I think that `Py_DECREF(presite_modname);` is not needed, because `presite_modname` is `NULL` in this branch.
This will, likely, lead to a crash.
I have a PR ready.
<!-- gh-linked-prs -->
### Linked PRs
* gh-115504
<!-- /gh-linked-prs -->
| 20eaf4d5dff7fa20f8a745450fef760f0923eb52 | 321d13fd2b858d76cd4cbd03e6d8c4cba307449e |
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