]> git.ipfire.org Git - thirdparty/Python/cpython.git/log
thirdparty/Python/cpython.git
2 months agogh-143706: Fix sys.argv not set during multiprocessing forkserver `__main__` preload...
Gregory P. Smith [Mon, 12 Jan 2026 23:47:21 +0000 (15:47 -0800)] 
gh-143706: Fix sys.argv not set during multiprocessing forkserver `__main__` preload (#143717)

The forkserver was not passing sys.argv to its main() function, causing
sys.argv to be empty during `__main__` module import in child processes. This
fixes a non-obvious regression inadvertently introduced by the gh-126631 main
preloading fix.

2 months agoBump automatic certificate update on Windows during builds (GH-143741)
Łukasz Langa [Mon, 12 Jan 2026 23:01:01 +0000 (00:01 +0100)] 
Bump automatic certificate update on Windows during builds (GH-143741)

Without this, OpenSSL that we use to download external dependencies might use a stale certificate store and be unable to connect to servers. We need to use a Windows-specific HTTP client that uses CryptoAPI directly to trigger certificate updates.

We only do it on failure to avoid hitting servers twice. And we only do it once per each URL.

2 months agoAdd Savannah to optimizer CODEOWNERS (#143761)
Savannah Ostrowski [Mon, 12 Jan 2026 22:56:05 +0000 (14:56 -0800)] 
Add Savannah to optimizer CODEOWNERS (#143761)

2 months agogh-134584: Add more contributors for JIT refcounting work (GH-143760)
Ken Jin [Mon, 12 Jan 2026 22:14:52 +0000 (06:14 +0800)] 
gh-134584: Add more contributors for JIT refcounting work (GH-143760)

2 months agogh-134584: Eliminate redundant refcounting in TO_BOOL_INT, TO_BOOL_LIST (GH-143759)
reiden [Mon, 12 Jan 2026 21:56:26 +0000 (22:56 +0100)] 
gh-134584: Eliminate redundant refcounting in TO_BOOL_INT, TO_BOOL_LIST (GH-143759)

2 months agoMinor readability/usability improvement to the recipes section (gh-143753)
Raymond Hettinger [Mon, 12 Jan 2026 20:12:23 +0000 (14:12 -0600)] 
Minor readability/usability improvement to the recipes section (gh-143753)

2 months agoGH-43374: Revert "GH-43374: Fix urlretrieve reporthook to report actual bytes r…...
Savannah Ostrowski [Mon, 12 Jan 2026 19:03:42 +0000 (11:03 -0800)] 
GH-43374: Revert "GH-43374: Fix urlretrieve reporthook to report actual bytes r… (#143711)

Revert "GH-43374: Fix urlretrieve reporthook to report actual bytes read (#142653)"

This reverts commit 68a01f901f446f71aac88431e01bb18b9fa35bd0.

2 months agogh-143196: Fix crash in non-standard use of internal JSON encoder object (GH-143618)
Serhiy Storchaka [Mon, 12 Jan 2026 18:23:05 +0000 (20:23 +0200)] 
gh-143196: Fix crash in non-standard use of internal JSON encoder object (GH-143618)

The internal encoder object returned by undocumented function
json.encoder.c_make_encoder() (aka _json.make_encoder()) crashed
when it was called with non-zero second argument.

2 months agogh-142461: Move misplaced NEWS entries to an appropriate section (GH-143411)
Aniket [Mon, 12 Jan 2026 18:13:44 +0000 (23:43 +0530)] 
gh-142461: Move misplaced NEWS entries to an appropriate section (GH-143411)

2 months agogh-139707: Copy-strip change to idle.rst into idlelib (#143718)
Terry Jan Reedy [Mon, 12 Jan 2026 17:55:06 +0000 (12:55 -0500)] 
gh-139707: Copy-strip change to idle.rst into idlelib (#143718)

On Windows, running `python -c "from idlelib.help import copy_strip;
copy_strip()"` after idle.html is built results in
`f:\dev\3x\Doc\build\html\library\idle.html
copied to f:\dev\3x\Lib\idlelib\help.html`
This PR commits the html change to idlelib/help.html.

2 months agogh-140795: Remove 'exc' field in SSLObject (gh-143491)
Sam Gross [Mon, 12 Jan 2026 17:14:13 +0000 (12:14 -0500)] 
gh-140795: Remove 'exc' field in SSLObject (gh-143491)

The 'exc' field was used by our debug SSL callbacks. Keep the exception
in the normal per-thread state to avoid shared mutable state between
threads.

This also avoids a reference count leak if the Python callback raised an
exception because it can be called multiple times per SSL operation.

2 months agogh-142518: Document thread-safety guarantees of list operations (#142519)
Lysandros Nikolaou [Mon, 12 Jan 2026 16:43:05 +0000 (17:43 +0100)] 
gh-142518: Document thread-safety guarantees of list operations (#142519)

* Add everything to code blocks
* Improve wording around atomicity; specify exact types
* Better explain lock-free and atomicity

2 months agogh-134584: Eliminate redundant refcounting from `_CONTAINS_{OP|OP_SET|OP_DICT}` ...
Nadeshiko Manju [Mon, 12 Jan 2026 15:47:31 +0000 (23:47 +0800)] 
gh-134584: Eliminate redundant refcounting from `_CONTAINS_{OP|OP_SET|OP_DICT}` (GH-143731)

Signed-off-by: Manjusaka <me@manjusaka.me>
2 months agogh-143544: Fix possible use-after-free in the JSON decoder when JSONDecodeError disap...
VanshAgarwal24036 [Mon, 12 Jan 2026 15:39:32 +0000 (21:09 +0530)] 
gh-143544: Fix possible use-after-free in the JSON decoder when JSONDecodeError disappears during raising it (#143561)

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
2 months agogh-143253: Add libabigail suppression file for internal types (#143254)
Pablo Galindo Salgado [Mon, 12 Jan 2026 15:37:43 +0000 (15:37 +0000)] 
gh-143253: Add libabigail suppression file for internal types (#143254)

Co-authored-by: Petr Viktorin <encukou@gmail.com>
2 months agogh-137113 docs: note readline no longer supported in REPL after 3.13 (GH-137142)
Kuang Yu Heng [Mon, 12 Jan 2026 15:30:35 +0000 (07:30 -0800)] 
gh-137113 docs: note readline no longer supported in REPL after 3.13 (GH-137142)

Add a note to the readline module documentation stating that
Python 3.13 and later no longer supports readline in the default REPL,
as per gh-118840. Includes workaround using PYTHON_BASIC_REPL.

Update tutorial to remove the reference, and use a different key to
test things out.

Signed-off-by: Kuang Yu Heng <yuheng3107@gmail.com>
2 months agogh-134584: JIT: Remove redundant refcount for _BINARY_OP_SUBSCR_DICT (GH-143724)
Cajetan Rodrigues [Mon, 12 Jan 2026 14:13:55 +0000 (15:13 +0100)] 
gh-134584: JIT: Remove redundant refcount for _BINARY_OP_SUBSCR_DICT (GH-143724)

2 months agogh-141004: Document PyUnicode_IS_COMPACT and PyUnicode_IS_COMPACT_ASCII macros (GH...
Yashraj [Mon, 12 Jan 2026 12:59:59 +0000 (18:29 +0530)] 
gh-141004: Document PyUnicode_IS_COMPACT and PyUnicode_IS_COMPACT_ASCII macros (GH-143494)

2 months agogh-140806: add docs for `enum.bin` function (#140807)
Guo Ci [Mon, 12 Jan 2026 11:34:18 +0000 (06:34 -0500)] 
gh-140806: add docs for `enum.bin` function (#140807)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
2 months agogh-143189: fix insertdict() for non-Unicode key (#143285)
Inada Naoki [Mon, 12 Jan 2026 11:21:23 +0000 (20:21 +0900)] 
gh-143189: fix insertdict() for non-Unicode key (#143285)

2 months ago gh-143578: Restore note about patchlevel.h (#143596)
Petr Viktorin [Mon, 12 Jan 2026 11:21:14 +0000 (12:21 +0100)] 
 gh-143578: Restore note about patchlevel.h (#143596)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
2 months agogh-142306: Improve errors for Element.remove() (GH-142308)
Serhiy Storchaka [Mon, 12 Jan 2026 09:49:18 +0000 (11:49 +0200)] 
gh-142306: Improve errors for Element.remove() (GH-142308)

* Raise TypeError for non-element argument in the Python implementation
  too.
* Include the repr of the elements in the ValueError error message.

2 months agogh-142881: Fix concurrent and reentrant call of atexit.unregister() (GH-142901)
Serhiy Storchaka [Mon, 12 Jan 2026 08:45:10 +0000 (10:45 +0200)] 
gh-142881: Fix concurrent and reentrant call of atexit.unregister() (GH-142901)

2 months agogh-143346: Fix calculation of the line width for wrapped Base64 in plistlib (GH-143347)
Serhiy Storchaka [Mon, 12 Jan 2026 08:40:06 +0000 (10:40 +0200)] 
gh-143346: Fix calculation of the line width for wrapped Base64 in plistlib (GH-143347)

It was incorrect in case of mixed tabs and spaces in indentation.

2 months agogh-134584: JIT: Remove redundant refcounting for UNARY_{INVERT|NEGATIVE} (GH-143704)
Ken Jin [Sun, 11 Jan 2026 20:42:55 +0000 (04:42 +0800)] 
gh-134584: JIT: Remove redundant refcounting for UNARY_{INVERT|NEGATIVE} (GH-143704)

2 months agogh-142972: Document arbitrary ordering in `Path.glob` and `Path.rglob` (GH-143025)
Bartosz Sławecki [Sun, 11 Jan 2026 19:36:47 +0000 (20:36 +0100)] 
gh-142972: Document arbitrary ordering in `Path.glob` and `Path.rglob` (GH-143025)

2 months agogh-128335: Make slice generic at runtime (#128336)
James Hilton-Balfe [Sun, 11 Jan 2026 19:27:24 +0000 (19:27 +0000)] 
gh-128335: Make slice generic at runtime (#128336)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
2 months agogh-127750: Fix annotations in singledispatchmethod signature tests (GH-143571)
Bartosz Sławecki [Sun, 11 Jan 2026 19:24:19 +0000 (20:24 +0100)] 
gh-127750: Fix annotations in singledispatchmethod signature tests (GH-143571)

These tests relied on a bug -- gh-84644, which is that singledispatch
doesn't verify the annotation is on the "first" parameter.

2 months agogh-139038: Update JIT perf figures for 3.14a4 (GH-143705)
Ken Jin [Sun, 11 Jan 2026 18:55:05 +0000 (02:55 +0800)] 
gh-139038: Update JIT perf figures for 3.14a4 (GH-143705)

2 months agogh-143420: Clarify sequence behavior for slice indexes (#143422)
Sergey B Kirpichev [Sun, 11 Jan 2026 17:17:47 +0000 (20:17 +0300)] 
gh-143420: Clarify sequence behavior for slice indexes (#143422)

2 months agogh-86139: Correct NamedTuple and TypedDict's type in typing.rst (#143692)
AN Long [Sun, 11 Jan 2026 15:53:25 +0000 (00:53 +0900)] 
gh-86139: Correct NamedTuple and TypedDict's type in typing.rst (#143692)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
2 months agogh-78724: Raise RuntimeError's when calling methods on non-ready Struct()'s (GH-143643)
Sergey B Kirpichev [Sun, 11 Jan 2026 15:52:01 +0000 (18:52 +0300)] 
gh-78724: Raise RuntimeError's when calling methods on non-ready Struct()'s (GH-143643)

2 months agogh-143638: Forbid cuncurrent use of the Pickler and Unpickler objects in C implementa...
Serhiy Storchaka [Sun, 11 Jan 2026 12:01:13 +0000 (14:01 +0200)] 
gh-143638: Forbid cuncurrent use of the Pickler and Unpickler objects in C implementation (GH-143664)

Previously, this could cause crash or data corruption, now concurrent calls
of methods of the same object raise RuntimeError.

2 months agoRemove outdated comment about `excess_args` warning in `object.__init__` (#143669)
Manuel Jacob [Sun, 11 Jan 2026 07:27:11 +0000 (08:27 +0100)] 
Remove outdated comment about `excess_args` warning in `object.__init__` (#143669)

The code emitting a warning was removed in 96384b93aae1d1e45dda21c4024d7d083c91626d.

2 months agoSync the batched() example with the grouper() example. (gh-143676)
Raymond Hettinger [Sun, 11 Jan 2026 04:00:13 +0000 (22:00 -0600)] 
Sync the batched() example with the grouper() example. (gh-143676)

2 months agoAdd derangements() recipe (gh-143671)
Raymond Hettinger [Sun, 11 Jan 2026 01:47:27 +0000 (19:47 -0600)] 
Add derangements() recipe (gh-143671)

2 months agoDoc: remove duplicate GitHub issue reference in "What's New in Python 3.13" (#143654)
emmanuel [Sat, 10 Jan 2026 13:34:30 +0000 (22:34 +0900)] 
Doc: remove duplicate GitHub issue reference in "What's New in Python 3.13" (#143654)

2 months agogh-143377: fix crashes in `_interpreters.capture_exception` (#143418)
Bénédikt Tran [Sat, 10 Jan 2026 11:37:54 +0000 (12:37 +0100)] 
gh-143377: fix crashes in `_interpreters.capture_exception` (#143418)

2 months agogh-143604: Hold strong reference to executor during JIT tracing (GH-143646)
Nadeshiko Manju [Sat, 10 Jan 2026 11:15:48 +0000 (19:15 +0800)] 
gh-143604: Hold strong reference to executor during JIT tracing (GH-143646)

Co-authored-by: Ken Jin <kenjin4096@gmail.com>
2 months agogh-143641: Make `ready_to_import` always remove tempdir from `sys.path` (#143642)
Jeong, YunWon [Sat, 10 Jan 2026 09:51:42 +0000 (18:51 +0900)] 
gh-143641: Make `ready_to_import` always remove tempdir from `sys.path` (#143642)

Make ready_to_import always remove tempdir from sys.path

2 months agogh-143586: Add Counter comparison tests to enforce missing element semantics (gh...
Heikki Toivonen [Sat, 10 Jan 2026 06:17:57 +0000 (22:17 -0800)] 
gh-143586: Add Counter comparison tests to enforce missing element semantics (gh-143587)

2 months agogh-142764: Restore REPLACE_OPCODE_IF_EVALUATES_PURE optimization for some ops (GH...
Ken Jin [Fri, 9 Jan 2026 23:18:22 +0000 (07:18 +0800)] 
gh-142764: Restore REPLACE_OPCODE_IF_EVALUATES_PURE optimization for some ops (GH-143335)

2 months agogh-143421: Allocate all JIT state in one go (GH-143626)
Ken Jin [Fri, 9 Jan 2026 19:00:49 +0000 (03:00 +0800)] 
gh-143421: Allocate all JIT state in one go (GH-143626)

2 months agogh-141004: Document remaining constants from patchlevel.h (GH-143598)
Petr Viktorin [Fri, 9 Jan 2026 17:40:07 +0000 (18:40 +0100)] 
gh-141004: Document remaining constants from patchlevel.h (GH-143598)

Co-authored-by: Victor Stinner <vstinner@python.org>
2 months agogh-136438: Make sure `test_interpreters` pass with all optimization levels (GH-136499)
Semyon Moroz [Fri, 9 Jan 2026 17:06:54 +0000 (17:06 +0000)] 
gh-136438: Make sure `test_interpreters` pass with all optimization levels (GH-136499)

2 months agogh-143006: Fix and optimize mixed comparison of float and int (GH-143084)
Serhiy Storchaka [Fri, 9 Jan 2026 17:06:45 +0000 (19:06 +0200)] 
gh-143006: Fix and optimize mixed comparison of float and int (GH-143084)

When comparing negative non-integer float and int with the same number
of bits in the integer part, __neg__() in the int subclass returning
not an int caused an assertion error.

Now the integer is no longer negated. Also, reduced the number of
temporary created Python objects.

2 months agogh-143421: Lazily allocate tracer code and opt buffers (GH-143597)
Ken Jin [Fri, 9 Jan 2026 16:56:19 +0000 (00:56 +0800)] 
gh-143421: Lazily allocate tracer code and opt buffers (GH-143597)

2 months agogh-143460: Skip infinite recusion tests for infinite stack size (#143606)
Jan André Reuter [Fri, 9 Jan 2026 16:11:37 +0000 (17:11 +0100)] 
gh-143460: Skip infinite recusion tests for infinite stack size (#143606)

Avoid tests being killed due to OOM on Linux if a system is configured with
'ulimit -s unlimited' by skipping tests relying on infinite recursion.

While unclear if Python should support 'ulimit -s unlimited', we should at
least try to avoid failing a PGO build running tests due to an unlimited
stack size being set.

Signed-off-by: Jan André Reuter <j.reuter@fz-juelich.de>
2 months agogh-106318: Add examples for str.rfind() method (#143582)
Adorilson Bezerra [Fri, 9 Jan 2026 15:24:31 +0000 (15:24 +0000)] 
gh-106318: Add examples for str.rfind() method (#143582)

2 months ago gh-106318: Improve str.removeprefix() and str.removesuffix() docs (#143580)
Adorilson Bezerra [Fri, 9 Jan 2026 15:22:50 +0000 (15:22 +0000)] 
 gh-106318: Improve str.removeprefix() and str.removesuffix() docs (#143580)

Add doctest role and 'See also'.

2 months agogh-143191: Use _PyOS_MIN_STACK_SIZE in _thread.stack_size() (#143601)
Victor Stinner [Fri, 9 Jan 2026 15:08:40 +0000 (16:08 +0100)] 
gh-143191: Use _PyOS_MIN_STACK_SIZE in _thread.stack_size() (#143601)

The stack size must be at least _PyOS_MIN_STACK_SIZE+SYSTEM_PAGE_SIZE
bytes.

3 months agogh-142829: Fix use-after-free in `Context.__eq__` via re-entrant `ContextVar.set...
A.Ibrahim [Fri, 9 Jan 2026 12:27:34 +0000 (13:27 +0100)] 
gh-142829: Fix use-after-free in `Context.__eq__` via re-entrant `ContextVar.set` (#142905)

3 months agogh-72239: Add note distinguishing concurrent.futures.Future from asyncio.Future ...
AN Long [Fri, 9 Jan 2026 12:18:32 +0000 (21:18 +0900)] 
gh-72239: Add note distinguishing concurrent.futures.Future from asyncio.Future (#143288)

3 months agogh-143547: Fix PyErr_FormatUnraisable() fallback (#143557)
Victor Stinner [Fri, 9 Jan 2026 12:16:22 +0000 (13:16 +0100)] 
gh-143547: Fix PyErr_FormatUnraisable() fallback (#143557)

Hold a strong reference to 'hook' while calling the default
unraisable took to log hook failure.

Fix test_sys.UnraisableHookTest: use the right decorator function to
disable colors. Previously, tests were always skipped.

3 months agogh-143378: Fix use-after-free when BytesIO is concurrently mutated during write opera...
zhong [Fri, 9 Jan 2026 11:50:56 +0000 (03:50 -0800)] 
gh-143378: Fix use-after-free when BytesIO is concurrently mutated during write operations (GH-143408)

PyObject_GetBuffer() can execute user code (e.g. via __buffer__), which may
close or otherwise mutate a BytesIO object while write() or writelines()
is in progress. This could invalidate the internal buffer and lead to a
use-after-free.

Ensure that PyObject_GetBuffer() is called before validation checks.

3 months agogh-143429: Use compile-time NaN encoding detection for test_struct (#143432)
Henry Chen [Fri, 9 Jan 2026 10:46:48 +0000 (18:46 +0800)] 
gh-143429: Use compile-time NaN encoding detection for test_struct (#143432)

3 months agogh-141004: Improve `make check-c-api-docs` (GH-143564)
Petr Viktorin [Fri, 9 Jan 2026 10:16:50 +0000 (11:16 +0100)] 
gh-141004: Improve `make check-c-api-docs` (GH-143564)

- Gather all documented names into a set in a single pass.
  This makes the check much faster.

- Do not match substrings (e.g. documenting `PyErr_WarnEx`
  doesn't mean that `PyErr_Warn` is documented)

- Consider `PY`-prefixed names (a lot of old macros use this)

3 months agoTest: remove unintended unittest.main() in live collector tests (#143590)
Yongtao Huang [Fri, 9 Jan 2026 08:49:54 +0000 (16:49 +0800)] 
Test: remove unintended unittest.main() in live collector tests (#143590)

3 months agogh-106318: Add examples for str.replace() method (GH-143581)
Adorilson Bezerra [Fri, 9 Jan 2026 08:01:00 +0000 (08:01 +0000)] 
gh-106318: Add examples for str.replace() method (GH-143581)

3 months agoGH-43374: Fix urlretrieve reporthook to report actual bytes read (#142653)
Savannah Ostrowski [Fri, 9 Jan 2026 00:32:05 +0000 (16:32 -0800)] 
GH-43374: Fix urlretrieve reporthook to report actual bytes read (#142653)

3 months agoGH-139686: Revert "gh-139686: Make reloading a lazy module no-op (GH-139857)" (#143584)
Brett Cannon [Thu, 8 Jan 2026 22:08:03 +0000 (14:08 -0800)] 
GH-139686: Revert "gh-139686: Make reloading a lazy module no-op (GH-139857)" (#143584)

This reverts commits 57db12514ac686f0a752ec8fe1c08b6daa0c6219 and 0a97941245f1dda6d838f9aaf0512104e5253929.

3 months agoAdd Emscripten test skips for recently added tests. (#143551)
Russell Keith-Magee [Thu, 8 Jan 2026 21:47:38 +0000 (05:47 +0800)] 
Add Emscripten test skips for recently added tests. (#143551)

Some recent changes introduced tests that can't run on Emscripten.
This change adds test skips for those tests.

3 months agogh-120321: Make gen.gi_frame.clear() thread-safe (gh-143112)
Sam Gross [Thu, 8 Jan 2026 19:45:54 +0000 (14:45 -0500)] 
gh-120321: Make gen.gi_frame.clear() thread-safe (gh-143112)

3 months agogh-143421: Move `JitOptContext` from stack allocation to per-thread heap allocation...
Hai Zhu [Thu, 8 Jan 2026 19:38:21 +0000 (03:38 +0800)] 
gh-143421: Move `JitOptContext` from stack allocation to per-thread heap allocation (GH-143536)

* move JitOptContext to _PyThreadStateImpl
* make _PyUOpInstruction buffer a part of _PyThreadStateImpl

Co-authored-by: Kumar Aditya <kumaraditya@python.org>
3 months agogh-143445: Optimize deepcopy for 1.04x speedup (#143449)
Heikki Toivonen [Thu, 8 Jan 2026 15:28:02 +0000 (07:28 -0800)] 
gh-143445: Optimize deepcopy for 1.04x speedup (#143449)

Gains according to pyperformance:

```
deepcopy:
Mean +- std dev: 411 us +- 2 us -> 396 us +- 3 us: 1.04x faster
Significant (t=28.94)

deepcopy_reduce:
Mean +- std dev: 4.38 us +- 0.05 us -> 4.23 us +- 0.04 us: 1.04x faster
Significant (t=20.05)
```

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
3 months agogh-142908: Don't use `DK_IS_UNICODE` in interpreter (gh-142909)
Sam Gross [Thu, 8 Jan 2026 14:32:20 +0000 (09:32 -0500)] 
gh-142908: Don't use `DK_IS_UNICODE` in interpreter (gh-142909)

`DK_IS_UNICODE()` includes split keys and we don't want to specialize on
those accesses..

3 months agogh-142095: Use thread local frame info in `py-bt` and `py-bt-full` when available...
Sam Gross [Thu, 8 Jan 2026 14:18:24 +0000 (09:18 -0500)] 
gh-142095: Use thread local frame info in `py-bt` and `py-bt-full` when available (gh-143371)

In optimized and `-Og` builds, arguments and local variables are frequently
unavailable in gdb. This makes `py-bt` fail to print anything useful. Use the
`PyThreadState*` pointers `_Py_tss_gilstate` and `Py_tss_tstate` to find the
interpreter frame if we can't get the frame from the
`_PyEval_EvalFrameDefault` call.

Co-authored-by: Victor Stinner <vstinner@python.org>
3 months agogh-143513: Clarify changed argument name of `ResourceReader.is_resource` (GH-143523)
Alex Willmer [Thu, 8 Jan 2026 13:40:17 +0000 (13:40 +0000)] 
gh-143513: Clarify changed argument name of `ResourceReader.is_resource` (GH-143523)

3 months agogh-143528: Fix test_time.test_thread_time() (#143558)
Victor Stinner [Thu, 8 Jan 2026 13:05:57 +0000 (14:05 +0100)] 
gh-143528: Fix test_time.test_thread_time() (#143558)

Tolerate 100 ms instead of 20 ms to support slow CIs.

3 months agogh-140025: Fix `queue.SimpleQueue.__sizeof__()` to return correct size (#143137)
Aniket [Thu, 8 Jan 2026 12:40:25 +0000 (18:10 +0530)] 
gh-140025: Fix `queue.SimpleQueue.__sizeof__()` to return correct size (#143137)

3 months agogh-143553: Add support for parametrized resources in regrtests (GH-143554)
Serhiy Storchaka [Thu, 8 Jan 2026 11:51:38 +0000 (13:51 +0200)] 
gh-143553: Add support for parametrized resources in regrtests (GH-143554)

For example, "-u xpickle=2.7" will run test_xpickle only against Python 2.7.

3 months agogh-143517: Fix an edge case in rewriting stringified starred annotations (#143518)
Bartosz Sławecki [Thu, 8 Jan 2026 03:41:27 +0000 (04:41 +0100)] 
gh-143517: Fix an edge case in rewriting stringified starred annotations (#143518)

3 months agogh-143089: Fix ParamSpec default examples to use list instead of tuple (#143179)
VanshAgarwal24036 [Thu, 8 Jan 2026 03:32:44 +0000 (09:02 +0530)] 
gh-143089: Fix ParamSpec default examples to use list instead of tuple (#143179)

3 months agogh-129824: Fix data race on `runtime->gilstate.check_enabled` (gh-143530)
Sam Gross [Wed, 7 Jan 2026 22:56:14 +0000 (17:56 -0500)] 
gh-129824: Fix data race on `runtime->gilstate.check_enabled` (gh-143530)

3 months agoFix a typo in STORE_SLICE docs (#143500)
Tomas R. [Wed, 7 Jan 2026 22:36:22 +0000 (23:36 +0100)] 
Fix a typo in STORE_SLICE docs (#143500)

3 months agogh-143531: Use macro to check if PEP 523 is hooked (#143532)
Dino Viehland [Wed, 7 Jan 2026 21:26:19 +0000 (13:26 -0800)] 
gh-143531: Use macro to check if PEP 523 is hooked (#143532)

Use macro to check if PEP 523 is hooked

3 months agoGH-142950: Process format specifiers before colourization in argparse help (#142960)
Savannah Ostrowski [Wed, 7 Jan 2026 17:39:47 +0000 (09:39 -0800)] 
GH-142950: Process format specifiers before colourization in argparse help (#142960)

3 months agogh-117657: Remove remaining TSan suppressions (gh-143499)
Sam Gross [Wed, 7 Jan 2026 17:34:05 +0000 (12:34 -0500)] 
gh-117657: Remove remaining TSan suppressions (gh-143499)

3 months agogh-106318: Add examples for str.casefold() and str.lower() methods (#142154)
Adorilson Bezerra [Wed, 7 Jan 2026 16:16:25 +0000 (16:16 +0000)] 
gh-106318: Add examples for str.casefold() and str.lower() methods (#142154)

Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
3 months agogh-141536: Fix a crash when running test_capi *after* test_code in the same process...
T. Wouters [Wed, 7 Jan 2026 15:40:33 +0000 (16:40 +0100)] 
gh-141536: Fix a crash when running test_capi *after* test_code in the same process (#141537)

3 months agogh-138568: Make `help` mode in PyREPL not exit on empty line input (#143512)
Łukasz Langa [Wed, 7 Jan 2026 15:30:58 +0000 (16:30 +0100)] 
gh-138568: Make `help` mode in PyREPL not exit on empty line input (#143512)

Signed-off-by: yihong0618 <zouzou0208@gmail.com>
Co-authored-by: yihong0618 <zouzou0208@gmail.com>
3 months agogh-94172: delete mention of ssl_version from ftplib doc (#143515)
Giampaolo Rodola [Wed, 7 Jan 2026 14:11:50 +0000 (15:11 +0100)] 
gh-94172: delete mention of ssl_version from ftplib doc (#143515)

`FTP_TLS.ssl_version` class attribute was removed in https://github.com/python/cpython/commit/ef0e72b31d2.

3 months agogh-141671: PyMODINIT_FUNC: apply `__declspec(dllexport)` on Windows (GH-141672)
Petr Viktorin [Wed, 7 Jan 2026 12:09:48 +0000 (13:09 +0100)] 
gh-141671: PyMODINIT_FUNC: apply `__declspec(dllexport)` on Windows (GH-141672)

3 months agogh-75572: Fix test_xpickle and disable it by default (GH-143503)
Serhiy Storchaka [Tue, 6 Jan 2026 23:51:12 +0000 (01:51 +0200)] 
gh-75572: Fix test_xpickle and disable it by default (GH-143503)

3 months agogh-106318: Add example for str.index() (#137023)
Adorilson Bezerra [Tue, 6 Jan 2026 21:42:11 +0000 (21:42 +0000)] 
gh-106318: Add example for str.index()  (#137023)

3 months agogh-134584: Eliminate redundant refcounting from `TO_BOOL_STR` (GH-143417)
Nadeshiko Manju [Tue, 6 Jan 2026 21:11:53 +0000 (05:11 +0800)] 
gh-134584: Eliminate redundant refcounting from `TO_BOOL_STR` (GH-143417)

Signed-off-by: Manjusaka <me@manjusaka.me>
3 months agogh-132070: Fix PyObject_Realloc thread-safety in free threaded Python (gh-143441)
Sam Gross [Tue, 6 Jan 2026 20:55:37 +0000 (15:55 -0500)] 
gh-132070: Fix PyObject_Realloc thread-safety in free threaded Python (gh-143441)

The PyObject header reference count fields must be initialized using
atomic operations because they may be concurrently read by another
thread (e.g., from `_Py_TryIncref`).

3 months agogh-142982: Specialize CALL_FUNCTION_EX (GH-143391)
Ken Jin [Tue, 6 Jan 2026 20:34:08 +0000 (04:34 +0800)] 
gh-142982: Specialize CALL_FUNCTION_EX (GH-143391)

3 months agogh-133315: Document that compat32 should not be used with MIMEPart/EmailMessage ...
Andrii Hrimov [Tue, 6 Jan 2026 20:18:37 +0000 (21:18 +0100)] 
gh-133315: Document that compat32 should not be used with MIMEPart/EmailMessage (#143307)

3 months agoDoc: Fix missing closing parenthesis in argparse example (#143488)
Xiao Yuan [Tue, 6 Jan 2026 17:53:43 +0000 (19:53 +0200)] 
Doc: Fix missing closing parenthesis in argparse example (#143488)

3 months agogh-142863: optimize `list` and `set` calls with generator expressions (#142864)
Kumar Aditya [Tue, 6 Jan 2026 17:53:28 +0000 (23:23 +0530)] 
gh-142863: optimize `list` and `set` calls with generator expressions  (#142864)

3 months agogh-142302: Fix mkstemp() documentation: clarify file descriptor inheritance behavior...
ADITYA RAI [Tue, 6 Jan 2026 17:08:25 +0000 (22:38 +0530)] 
gh-142302: Fix mkstemp() documentation: clarify file descriptor inheritance behavior (#142338)

The documentation incorrectly stated that the file descriptor is not
inherited by child processes. In reality, the close-on-exec flag (when
available) only prevents inheritance across exec() calls, not fork().

Co-authored-by: Victor Stinner <vstinner@python.org>
3 months agogh-75572: Forward-port test_xpickle from Python 2 to 3 (GH-22452)
Ken Jin [Tue, 6 Jan 2026 17:03:03 +0000 (01:03 +0800)] 
gh-75572: Forward-port test_xpickle from Python 2 to 3 (GH-22452)

Move data classes used in tests to separate file test_picklecommon.py,
so it can be imported in old Python versions.

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
3 months agogh-106318: Add examples for str.isprintable() (#140043)
Adorilson Bezerra [Tue, 6 Jan 2026 16:43:44 +0000 (16:43 +0000)] 
gh-106318: Add examples for str.isprintable()  (#140043)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
3 months agogh-131798: Support generator frames in the JIT optimizer (GH-143340)
Ken Jin [Tue, 6 Jan 2026 16:39:57 +0000 (00:39 +0800)] 
gh-131798: Support generator frames in the JIT optimizer (GH-143340)

3 months agogh-143469: enable `LOAD_ATTR_MODULE` specialization even if `__getattr__` is defined...
Kumar Aditya [Tue, 6 Jan 2026 16:39:18 +0000 (22:09 +0530)] 
gh-143469: enable `LOAD_ATTR_MODULE` specialization even if `__getattr__` is defined (#143470)

3 months agogh-142991: socketmodule: fixed getsockaddrlen() for PF_DIVERT socket (#142993)
Gleb Smirnoff [Tue, 6 Jan 2026 16:25:29 +0000 (08:25 -0800)] 
gh-142991: socketmodule: fixed getsockaddrlen() for PF_DIVERT socket (#142993)

3 months agogh-134584: Eliminate redundant refcounting in TO_BOOL_ALWAYS_TRUE (GH-143427)
reiden [Tue, 6 Jan 2026 16:11:56 +0000 (00:11 +0800)] 
gh-134584: Eliminate redundant refcounting in TO_BOOL_ALWAYS_TRUE (GH-143427)

Co-authored-by: Ken Jin <kenjin@python.org>
3 months agogh-139038: Add macOS performance numbers for the JIT (GH-143479)
Ken Jin [Tue, 6 Jan 2026 15:19:35 +0000 (23:19 +0800)] 
gh-139038: Add macOS performance numbers for the JIT (GH-143479)

3 months agogh-143424: Fix assertion in _PyMutex_LockTimed (gh-143439)
Sam Gross [Tue, 6 Jan 2026 14:40:14 +0000 (09:40 -0500)] 
gh-143424: Fix assertion in _PyMutex_LockTimed (gh-143439)

The assertion doesn't necessarily hold for `threading.Lock`, so allow
the lock to be unlocked if `_PY_LOCK_PYTHONLOCK` is set on the flags.