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7 weeks agogh-129813, PEP 782: Use PyBytesWriter in _multiprocessing (#139047)
Victor Stinner [Wed, 17 Sep 2025 15:44:13 +0000 (16:44 +0100)] 
gh-129813, PEP 782: Use PyBytesWriter in _multiprocessing (#139047)

Replace PyBytes_FromStringAndSize(NULL, size) and _PyBytes_Resize()
with the new public PyBytesWriter API.

Change also 'read' variable type from int to Py_ssize_t.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in _Py_bytes_maketrans() (#139044)
Victor Stinner [Wed, 17 Sep 2025 15:43:30 +0000 (16:43 +0100)] 
gh-129813, PEP 782: Use PyBytesWriter in _Py_bytes_maketrans() (#139044)

Replace PyBytes_FromStringAndSize(NULL, size) with the new public
PyBytesWriter API.

7 weeks agogh-132558: Improve `argparse` docs on combining `type` and `choices` (#133827)
Hans Then [Wed, 17 Sep 2025 15:25:17 +0000 (17:25 +0200)] 
gh-132558: Improve `argparse` docs on combining `type` and `choices` (#133827)

Co-authored-by: Savannah Bailey <savannahostrowski@gmail.com>
7 weeks agoGH-92266: Remove embedded tabs from ``c-analyzer/cpython/_parser.py`` (#137622)
Adam Turner [Wed, 17 Sep 2025 15:25:04 +0000 (16:25 +0100)] 
GH-92266: Remove embedded tabs from ``c-analyzer/cpython/_parser.py`` (#137622)

7 weeks agoAdd pganssle to CODEOWNERS for ``zoneinfo`` (#139032)
Paul Ganssle [Wed, 17 Sep 2025 15:17:27 +0000 (16:17 +0100)] 
Add pganssle to CODEOWNERS for ``zoneinfo`` (#139032)

Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
7 weeks agogh-137988: Fix const description in argparse.add_argument() docs (#138315)
PrinceNaroliya [Wed, 17 Sep 2025 15:15:57 +0000 (20:45 +0530)] 
gh-137988: Fix const description in argparse.add_argument() docs (#138315)

Co-authored-by: Savannah Bailey <savannahostrowski@gmail.com>
7 weeks agogh-128639: Don't assume one thread in subinterpreter finalization with fixed daemon...
Peter Bierma [Wed, 17 Sep 2025 15:14:19 +0000 (11:14 -0400)] 
gh-128639: Don't assume one thread in subinterpreter finalization with fixed daemon thread support (GH-134606)

This reapplies GH-128640.

7 weeks agogh-131776: Expose functions called from the interpreter loop via PyAPI_FUNC (#134242)
Dino Viehland [Wed, 17 Sep 2025 15:04:02 +0000 (16:04 +0100)] 
gh-131776: Expose functions called from the interpreter loop via PyAPI_FUNC (#134242)

7 weeks agogh-138952: Document platform.machine() output casing inconsistency across platforms...
Aniket [Wed, 17 Sep 2025 14:56:21 +0000 (20:26 +0530)] 
gh-138952:  Document platform.machine() output casing inconsistency across platforms (#138962)

Co-authored-by: AN Long <aisk@users.noreply.github.com>
7 weeks agogh-129368: In PyRun C API docs, clarify what a "start token" is (#129935)
Rajhans Jadhao [Wed, 17 Sep 2025 14:51:20 +0000 (20:21 +0530)] 
gh-129368: In PyRun C API docs, clarify what a "start token" is (#129935)

7 weeks agogh-128627: Use __builtin_wasm_test_function_pointer_signature for Emscripten trampoli...
Hood Chatham [Wed, 17 Sep 2025 14:33:55 +0000 (16:33 +0200)] 
gh-128627: Use __builtin_wasm_test_function_pointer_signature for Emscripten trampoline (#137470)

With https://github.com/llvm/llvm-project/pull/150201 being merged, there is
now a better way to generate the Emscripten trampoline, instead of including
hand-generated binary WASM content. Requires Emscripten 4.0.12.

7 weeks agogh-139006: Doc: Clarify html.escape function description (#139016)
PrinceNaroliya [Wed, 17 Sep 2025 13:45:34 +0000 (19:15 +0530)] 
gh-139006: Doc: Clarify html.escape function description (#139016)

Doc: Clarify html.escape function description (GH-139006)

7 weeks agogh-107862: Add property-based round-trip tests for base64 (#119406)
Petr Viktorin [Wed, 17 Sep 2025 13:40:35 +0000 (15:40 +0200)] 
gh-107862: Add property-based round-trip tests for base64 (#119406)

* Add property-based tests to test_base64

* Allow multiple positional arguments in @hypothesis.example stub

* Simplify the altchars strategy

7 weeks agogh-138896: Fix error installing C runtime on non-updated Windows machines (GH-138932)
adang1345 [Wed, 17 Sep 2025 13:32:52 +0000 (09:32 -0400)] 
gh-138896: Fix error installing C runtime on non-updated Windows machines (GH-138932)

7 weeks agogh-76760: test that `uuid.uuid1()` sets the version field (#139033)
Bénédikt Tran [Wed, 17 Sep 2025 13:31:51 +0000 (15:31 +0200)] 
gh-76760: test that `uuid.uuid1()` sets the version field (#139033)

7 weeks agogh-134466: Don't run when termios is inaccessible (GH-138911)
Łukasz Langa [Wed, 17 Sep 2025 10:59:49 +0000 (11:59 +0100)] 
gh-134466: Don't run when termios is inaccessible (GH-138911)

Without the ability to set required capabilities, the REPL cannot
function properly (syntax highlighting and multiline editing can't
work).

We refuse to work in this degraded state.

7 weeks agogh-138998: Upgrade vendored expat to 2.7.2 (#138999)
Stan Ulbrych [Wed, 17 Sep 2025 10:46:35 +0000 (11:46 +0100)] 
gh-138998: Upgrade vendored expat to 2.7.2 (#138999)

7 weeks agogh-99948: Support ctypes.util.find_library in emscripten environment (#138519)
Gyeongjae Choi [Wed, 17 Sep 2025 10:17:56 +0000 (19:17 +0900)] 
gh-99948: Support ctypes.util.find_library in emscripten environment (#138519)

Adds support for ctypes loading .so files directly.

---------

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Russell Keith-Magee <russell@keith-magee.com>
7 weeks agoGH-123299: Copyedit 3.14 What's New: C API (#138987)
Adam Turner [Wed, 17 Sep 2025 10:14:57 +0000 (11:14 +0100)] 
GH-123299: Copyedit 3.14 What's New: C API (#138987)

7 weeks agogh-138966: Add description for `gi_suspended` attribute (GH-139008)
Donghoon Nam [Wed, 17 Sep 2025 08:21:52 +0000 (17:21 +0900)] 
gh-138966: Add description for `gi_suspended` attribute (GH-139008)

7 weeks agogh-71679: Share the repr implementation between bytes and bytearray (GH-138181)
Serhiy Storchaka [Wed, 17 Sep 2025 08:10:29 +0000 (11:10 +0300)] 
gh-71679: Share the repr implementation between bytes and bytearray (GH-138181)

This allows to use the smart quotes algorithm in the bytearray's repr.

7 weeks agogh-134716: Support regular expressions in -W and PYTHONWARNINGS (GH-138149)
Serhiy Storchaka [Tue, 16 Sep 2025 17:06:44 +0000 (20:06 +0300)] 
gh-134716: Support regular expressions in -W and PYTHONWARNINGS (GH-138149)

7 weeks agoRevert "gh-118803: Remove `ByteString` from `typing` and `collections.abc` (#118804...
Alex Waygood [Tue, 16 Sep 2025 15:48:19 +0000 (16:48 +0100)] 
Revert "gh-118803: Remove `ByteString` from `typing` and `collections.abc` (#118804)" (#138990)

7 weeks agogh-137226: Fix get_type_hints() on generic TypedDict with stringified annotations...
Jelle Zijlstra [Tue, 16 Sep 2025 14:28:39 +0000 (07:28 -0700)] 
gh-137226: Fix get_type_hints() on generic TypedDict with stringified annotations (#138953)

This issue appears specifically for TypedDicts because the TypedDict constructor
code converts string annotations to ForwardRef objects, and those are not evaluated
properly by the get_type_hints() stack because of other shenanigans with type
parameters.

This issue does not affect normal generic classes because their annotations are not
pre-converted to ForwardRefs.

The fix attempts to restore the pre- #137227 behavior in the narrow scenario where
the issue manifests. It mostly makes changes only in the paths accessible from get_type_hints(),
ensuring that newer APIs (such as evaluate_forward_ref() and annotationlib) are not affected
by get_type_hints()'s past odd choices. This PR does not fix issue #138949, an older issue I
discovered while playing around with this one; we'll need a separate and perhaps more
invasive fix for that, but it should wait until after 3.14.0.

7 weeks agogh-138514: getpass: restrict `echo_char` to a single ASCII character (#138591)
Benjamin Johnson [Tue, 16 Sep 2025 14:21:55 +0000 (08:21 -0600)] 
gh-138514: getpass: restrict `echo_char` to a single ASCII character (#138591)

This amends commit bf8bbe9a813dd9fc2dd14be06df172b7d26ca1af by
restricting `echo_char` in `getpass.getpass` to single printable
ASCII characters as it would be uncommon to use long strings or
multi-byte characters for keyboard feedback.

---------

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Brian Schubert <brianm.schubert@gmail.com>
7 weeks agogh-129813, PEP 782: Add doc reference link (#138986)
Victor Stinner [Tue, 16 Sep 2025 13:51:45 +0000 (14:51 +0100)] 
gh-129813, PEP 782: Add doc reference link (#138986)

7 weeks agoAdds support for building with VisualStudioVersion = 18.0 (GH-138980)
Steve Dower [Tue, 16 Sep 2025 13:41:36 +0000 (14:41 +0100)] 
Adds support for building with VisualStudioVersion = 18.0 (GH-138980)

7 weeks agofix some typos (#138977)
AN Long [Tue, 16 Sep 2025 13:03:39 +0000 (22:03 +0900)] 
fix some typos (#138977)

7 weeks agogh-135629: rewrite language reference section on except* to improve clarity (#136150)
Irit Katriel [Tue, 16 Sep 2025 12:56:51 +0000 (13:56 +0100)] 
gh-135629: rewrite language reference section on except* to improve clarity (#136150)

7 weeks agoSynced docs and docstring for `sysconfig.get_platform` (#135530) 138982/head
ivan [Tue, 16 Sep 2025 11:16:48 +0000 (08:16 -0300)] 
Synced docs and docstring  for `sysconfig.get_platform` (#135530)

Co-authored-by: Mikhail Efimov <efimov.mikhail@gmail.com>
Co-authored-by: Ned Deily <nad@python.org>
7 weeks agogh-135329: prevent infinite traceback loop on Ctrl-C for strace (GH-138133)
yihong [Tue, 16 Sep 2025 10:39:03 +0000 (18:39 +0800)] 
gh-135329: prevent infinite traceback loop on Ctrl-C  for strace (GH-138133)

Signed-off-by: yihong0618 <zouzou0208@gmail.com>
Co-authored-by: dura0ok <slpmcf@gmail.com>
Co-authored-by: graymon <greyschwinger@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
7 weeks agoGH-129805: Clean up some changes from GH-129806 (GH-133540)
Brandt Bucher [Tue, 16 Sep 2025 10:29:09 +0000 (11:29 +0100)] 
GH-129805: Clean up some changes from GH-129806 (GH-133540)

7 weeks agogh-88473: Implement fast path in date.today() for date types (#130980)
Stan Ulbrych [Tue, 16 Sep 2025 09:28:54 +0000 (10:28 +0100)] 
gh-88473: Implement fast path in date.today() for date types (#130980)

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
7 weeks agogh-129813, PEP 782: Soft deprecate _PyBytes_Resize() (#138964)
Victor Stinner [Tue, 16 Sep 2025 08:38:43 +0000 (09:38 +0100)] 
gh-129813, PEP 782: Soft deprecate _PyBytes_Resize() (#138964)

Soft deprecate _PyBytes_Resize() and
PyBytes_FromStringAndSize(NULL, size).

7 weeks agogh-138013: Remove load_tests in test_io.test_general (#138771)
Cody Maloney [Tue, 16 Sep 2025 08:37:28 +0000 (01:37 -0700)] 
gh-138013: Remove load_tests in test_io.test_general (#138771)

Rely on default test discovery.

Validation:
```bash
 # Run before commit
./python -m test test_io -uall,walltime,largefile,cpu,extralargefile -M25G -o --fail-env-changed -j0 --list-cases | sort > old_cases.txt
 # Run after commit
./python -m test test_io -uall,walltime,largefile,cpu,extralargefile -M25G -o --fail-env-changed -j0 --list-cases | sort > new_cases.txt

diff new_cases.txt old_cases.
 # <outputs no changes in case list>
```

7 weeks agogh-137433: Fix deadlock with stop-the-world and daemon threads (gh-137735)
Sam Gross [Tue, 16 Sep 2025 08:21:58 +0000 (09:21 +0100)] 
gh-137433: Fix deadlock with stop-the-world and daemon threads (gh-137735)

There was a deadlock originally seen by Memray when a daemon thread
enabled or disabled profiling while the interpreter was shutting down.
I think this could also happen with garbage collection, but I haven't
seen that in practice.

The daemon thread could be hung while trying acquire the global rwmutex
that prevents overlapping global and per-interpreter stop-the-world events.
Since it already held the main interpreter's stop-the-world lock, it
also deadlocked the main thread, which is trying to perform interpreter
finalization.

Swap the order of lock acquisition to prevent this deadlock.
Additionally, refactor `_PyParkingLot_Park` so that the global buckets
hashtable is left in a clean state if the thread is hung in
`PyEval_AcquireThread`.

7 weeks agogh-138958: remove unused variable in Lib/asyncio/streams.py (#138959)
yihong [Tue, 16 Sep 2025 03:18:41 +0000 (11:18 +0800)] 
gh-138958: remove unused variable in Lib/asyncio/streams.py (#138959)

7 weeks agoRe-order Modules/makesetup in CODEOWNERS and update owners (#138628)
Emma Smith [Tue, 16 Sep 2025 02:52:59 +0000 (19:52 -0700)] 
Re-order Modules/makesetup in CODEOWNERS and update owners (#138628)

* Re-order Modules/makesetup in CODEOWNERS and add Adam Turner
* Add Erlend to Modules/makesetup in CODEOWNERS

7 weeks agogh-129813, PEP 782: Add PyBytesWriter.overallocate (#138941)
Victor Stinner [Mon, 15 Sep 2025 22:15:32 +0000 (23:15 +0100)] 
gh-129813, PEP 782: Add PyBytesWriter.overallocate (#138941)

Disable overallocation in _PyBytes_FormatEx() at the last write.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in bufferedio.c (#138954)
Victor Stinner [Mon, 15 Sep 2025 21:50:09 +0000 (22:50 +0100)] 
gh-129813, PEP 782: Use PyBytesWriter in bufferedio.c (#138954)

Replace PyBytes_FromStringAndSize(NULL, size) and _PyBytes_Resize()
with the new public PyBytesWriter API.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in FileIO.read() (#138955)
Victor Stinner [Mon, 15 Sep 2025 21:49:28 +0000 (22:49 +0100)] 
gh-129813, PEP 782: Use PyBytesWriter in FileIO.read() (#138955)

Replace PyBytes_FromStringAndSize(NULL, size) and _PyBytes_Resize()
with the new public PyBytesWriter API.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in _sha3 (#138923)
Victor Stinner [Mon, 15 Sep 2025 20:53:03 +0000 (21:53 +0100)] 
gh-129813, PEP 782: Use PyBytesWriter in _sha3 (#138923)

Replace PyBytes_FromStringAndSize(NULL, size) with the new public
PyBytesWriter API.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in _io.FileIO.readall (#138901)
Cody Maloney [Mon, 15 Sep 2025 20:38:01 +0000 (13:38 -0700)] 
gh-129813, PEP 782: Use PyBytesWriter in _io.FileIO.readall (#138901)

Performance about the same, using the benchmark from gh-120754:

```
pyperf compare_to main.json pep782.json
read_file_small: Mean +- std dev: [main] 5.71 us +- 0.05 us -> [pep782] 5.68 us +- 0.05 us: 1.01x faster
read_file_large: Mean +- std dev: [main] 89.7 us +- 0.9 us -> [pep782] 86.9 us +- 0.8 us: 1.03x faster
read_all_rst_bytes: Mean +- std dev: [main] 926 us +- 8 us -> [pep782] 920 us +- 12 us: 1.01x faster
read_all_rst_text: Mean +- std dev: [main] 2.24 ms +- 0.02 ms -> [pep782] 2.17 ms +- 0.04 ms: 1.03x faster

Benchmark hidden because not significant (1): read_all_py_bytes

Geometric mean: 1.01x faster
```

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in _winapi.PeekNamedPipe() (#138930)
Victor Stinner [Mon, 15 Sep 2025 20:25:47 +0000 (21:25 +0100)] 
gh-129813, PEP 782: Use PyBytesWriter in _winapi.PeekNamedPipe() (#138930)

Replace PyBytes_FromStringAndSize(NULL, size) and _PyBytes_Resize()
with the new public PyBytesWriter API.

7 weeks agogh-97517: Add documentation links to datetime strftime/strptime docstrings (#138559)
Mehdi Hassan [Mon, 15 Sep 2025 18:50:46 +0000 (19:50 +0100)] 
gh-97517: Add documentation links to datetime strftime/strptime docstrings (#138559)

* Add documentation links to datetime strftime/strptime docstrings

- Add links to format codes documentation for all strftime methods
- Add links to format codes documentation for all strptime methods
- Addresses issue #97517

* Update C extension docstrings with format codes documentation

* Regenerate clinic code for updated docstrings

* Add clinic-generated header file for updated docstrings

* Fix docstring spacing consistency in both Python and C files

* Update Lib/_pydatetime.py

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
---------

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
7 weeks agogh-69605: Hardcode some stdlib submodules in PyREPL module completion (os.path, colle...
Loïc Simon [Mon, 15 Sep 2025 16:51:34 +0000 (18:51 +0200)] 
gh-69605: Hardcode some stdlib submodules in PyREPL module completion (os.path, collections.abc...) (GH-138268)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
7 weeks agogh-129813, PEP 782: Use PyBytesWriter in _hashopenssl (#138922)
Victor Stinner [Mon, 15 Sep 2025 16:41:43 +0000 (17:41 +0100)] 
gh-129813, PEP 782: Use PyBytesWriter in _hashopenssl (#138922)

Replace PyBytes_FromStringAndSize(NULL, size) with the new public
PyBytesWriter API.

7 weeks agogh-37817: Allow assignment to __bases__ of direct subclasses of builtin classes ...
Serhiy Storchaka [Mon, 15 Sep 2025 16:40:28 +0000 (19:40 +0300)] 
gh-37817: Allow assignment to __bases__ of direct subclasses of builtin classes (GH-137585)

7 weeks agogh-134953: Make the True/False/None check more efficient (GH-138931)
Łukasz Langa [Mon, 15 Sep 2025 16:27:37 +0000 (17:27 +0100)] 
gh-134953: Make the True/False/None check more efficient (GH-138931)

7 weeks agogh-128636: Fix crash in PyREPL when os.environ is overwritten with an invalid value...
yihong [Mon, 15 Sep 2025 16:26:23 +0000 (00:26 +0800)] 
gh-128636: Fix crash in PyREPL when os.environ is overwritten with an invalid value for macOS (GH-138089)

Signed-off-by: yihong0618 <zouzou0208@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
7 weeks agogh-132732: Clear errors in JIT optimizer on error (GH-136048)
Ken Jin [Mon, 15 Sep 2025 16:24:37 +0000 (17:24 +0100)] 
gh-132732: Clear errors in JIT optimizer on error (GH-136048)

7 weeks agogh-138239: Fix incorrect highlighting of "type" in type statements in the REPL (GH...
00ll00 [Mon, 15 Sep 2025 16:21:41 +0000 (00:21 +0800)] 
gh-138239: Fix incorrect highlighting of "type" in type statements in the REPL (GH-138241)

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
7 weeks agogh-137490: Fix signal.sigwaitinfo() on NetBSD (GH-137523)
Serhiy Storchaka [Mon, 15 Sep 2025 16:20:31 +0000 (19:20 +0300)] 
gh-137490: Fix signal.sigwaitinfo() on NetBSD (GH-137523)

Handle ECANCELED in the same way as EINTR to work around the Posix
violation in the NetBSD's implementation.

7 weeks agoGH-132732: Remove textwrap import (#138933)
Savannah Bailey [Mon, 15 Sep 2025 16:09:51 +0000 (17:09 +0100)] 
GH-132732: Remove textwrap import (#138933)

7 weeks agoGH-132732: Use pure op machinery to optimize various instructions with `_POP_TOP...
Savannah Bailey [Mon, 15 Sep 2025 15:29:45 +0000 (16:29 +0100)] 
GH-132732: Use pure op machinery to optimize various instructions with `_POP_TOP` and `_POP_TWO`  (#137577)

7 weeks agogh-137992: fix `PyRefTracer_SetTracer` to start world before returning (#138925)
Kumar Aditya [Mon, 15 Sep 2025 14:39:15 +0000 (20:09 +0530)] 
gh-137992: fix `PyRefTracer_SetTracer` to start world before returning  (#138925)

fix deadlock in PyRefTracer_SetTracer

7 weeks agogh-138712: Add os.NODEV (GH-138728)
Serhiy Storchaka [Mon, 15 Sep 2025 14:36:32 +0000 (17:36 +0300)] 
gh-138712: Add os.NODEV (GH-138728)

7 weeks agogh-134953: Expand theming for `True`/`False`/`None` (#135000)
Stan Ulbrych [Mon, 15 Sep 2025 14:36:17 +0000 (15:36 +0100)] 
gh-134953: Expand theming for `True`/`False`/`None` (#135000)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
7 weeks agogh-129813, PEP 782: Use PyBytesWriter in _codecs.escape_decode() (#138919)
Victor Stinner [Mon, 15 Sep 2025 14:32:43 +0000 (15:32 +0100)] 
gh-129813, PEP 782: Use PyBytesWriter in _codecs.escape_decode() (#138919)

Replace PyBytes_FromStringAndSize(NULL, size) and _PyBytes_Resize()
with the new public PyBytesWriter API.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in _curses (#138920)
Victor Stinner [Mon, 15 Sep 2025 14:24:34 +0000 (15:24 +0100)] 
gh-129813, PEP 782: Use PyBytesWriter in _curses (#138920)

Replace PyBytes_FromStringAndSize(NULL, size) and _PyBytes_Resize()
with the new public PyBytesWriter API.

7 weeks agogh-129813, PEP 782: Init small_buffer in PyBytesWriter_Create() (#138924)
Victor Stinner [Mon, 15 Sep 2025 14:23:11 +0000 (15:23 +0100)] 
gh-129813, PEP 782: Init small_buffer in PyBytesWriter_Create() (#138924)

Fill small_buffer with 0xFF byte pattern to detect the usage of
uninitialized bytes in debug build.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in fcntl (#138921)
Victor Stinner [Mon, 15 Sep 2025 14:21:43 +0000 (15:21 +0100)] 
gh-129813, PEP 782: Use PyBytesWriter in fcntl (#138921)

Replace PyBytes_FromStringAndSize(NULL, size) with the new public
PyBytesWriter API.

Don't build the fcntl with the limited C API anymore, since
the PyBytesWriter API is not part of the limited C API.

7 weeks agogh-138779: Use the dev_t converter for st_rdev (GH-138780)
Serhiy Storchaka [Mon, 15 Sep 2025 14:07:34 +0000 (17:07 +0300)] 
gh-138779: Use the dev_t converter for st_rdev (GH-138780)

This allows to support device numbers larger than 2**63-1.

7 weeks agogh-137956: Guard against non-free-threaded extensions in free-threaded builds (GH...
Petr Viktorin [Mon, 15 Sep 2025 11:24:16 +0000 (13:24 +0200)] 
gh-137956: Guard against non-free-threaded extensions in free-threaded builds (GH-137957)

7 weeks agogh-137017: Ensure `Thread.is_alive()` only returns False after the underlying OS...
Abdul [Mon, 15 Sep 2025 11:13:37 +0000 (12:13 +0100)] 
gh-137017: Ensure `Thread.is_alive()` only returns False after the underlying OS thread exits (gh-137315)

7 weeks agogh-138902: Fix generator send arg name (#138905)
Marat Khagazheev [Mon, 15 Sep 2025 11:05:36 +0000 (14:05 +0300)] 
gh-138902: Fix generator send arg name (#138905)

Co-authored-by: marat <khagazheev@artlebedev.ru>
7 weeks agogh-137992: Stop the world when calling PyRefTracer_SetTracer (#137994)
Pablo Galindo Salgado [Mon, 15 Sep 2025 10:39:41 +0000 (11:39 +0100)] 
gh-137992: Stop the world when calling PyRefTracer_SetTracer (#137994)

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in _PyBytes_FormatEx() (#138839)
Victor Stinner [Mon, 15 Sep 2025 10:23:36 +0000 (11:23 +0100)] 
gh-129813, PEP 782: Use PyBytesWriter in _PyBytes_FormatEx() (#138839)

Replace the private _PyBytesWriter API with the new public
PyBytesWriter API.

7 weeks agogh-138794: Communicate to PyRefTracer when they are being replaced (#138797)
Pablo Galindo Salgado [Mon, 15 Sep 2025 10:12:09 +0000 (11:12 +0100)] 
gh-138794: Communicate to PyRefTracer when they are being replaced (#138797)

7 weeks agogh-138886: Remove deprecated `PySys_ResetWarnOptions` C-API function (#138887)
sobolevn [Mon, 15 Sep 2025 09:01:33 +0000 (12:01 +0300)] 
gh-138886: Remove deprecated `PySys_ResetWarnOptions` C-API function (#138887)

7 weeks agoFix typo in stack_protection.md (GH-138876)
Bartosz Sławecki [Mon, 15 Sep 2025 08:53:13 +0000 (10:53 +0200)] 
Fix typo in stack_protection.md (GH-138876)

7 weeks agogh-138871: Clarify NameError exception in 'del' (#138881)
Kian Eliasi [Mon, 15 Sep 2025 06:11:01 +0000 (09:41 +0330)] 
gh-138871: Clarify NameError exception in 'del' (#138881)

7 weeks agogh-135953: Reduce memory usage of stack collectors (#138875)
László Kiss Kollár [Sun, 14 Sep 2025 22:47:14 +0000 (23:47 +0100)] 
gh-135953: Reduce memory usage of stack collectors (#138875)

The stack collector base class keeps all frames until export() is
called, which causes significant unnecessary memory usage. Instead, we
can process the frames on the fly in the collect call by dispatching the
aggregation logic to the subclass through the process_frames method.

Co-authored-by: Pablo Galindo Salgado <pablogsal@gmail.com>
7 weeks agogh-135953: Prevent overflow in the profiler flamegraph hover boxes (#138880)
Pablo Galindo Salgado [Sun, 14 Sep 2025 20:50:18 +0000 (21:50 +0100)] 
gh-135953: Prevent overflow in the profiler flamegraph hover boxes (#138880)

7 weeks agogh-136355: Deprecate `-b` and `-bb` CLI flags in 3.15 (#136363)
sobolevn [Sun, 14 Sep 2025 17:00:03 +0000 (20:00 +0300)] 
gh-136355: Deprecate `-b` and `-bb` CLI flags in 3.15 (#136363)

Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
7 weeks agogh-71810: Fix _PyLong_AsByteArray() undefined behavior (#138873)
Victor Stinner [Sun, 14 Sep 2025 09:25:53 +0000 (11:25 +0200)] 
gh-71810: Fix _PyLong_AsByteArray() undefined behavior (#138873)

Don't read p[-1] when p is an empty string: when n==0.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in lzma and zlib (#138832)
Victor Stinner [Sat, 13 Sep 2025 17:27:04 +0000 (19:27 +0200)] 
gh-129813, PEP 782: Use PyBytesWriter in lzma and zlib (#138832)

Replace PyBytes_FromStringAndSize(NULL, size) with the new public
PyBytesWriter API.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in _PyBytes_FromList() (#138837)
Victor Stinner [Sat, 13 Sep 2025 17:23:57 +0000 (19:23 +0200)] 
gh-129813, PEP 782: Use PyBytesWriter in _PyBytes_FromList() (#138837)

Use the new public PyBytesWriter API in:

* _PyBytes_FromHex()
* _PyBytes_FromBuffer()
* _PyBytes_FromList()
* _PyBytes_FromTuple()
* _PyBytes_FromIterator()

Add _PyBytesWriter_ResizeAndUpdatePointer() and
_PyBytesWriter_GetAllocated() helper functions.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in posix extension (#138829)
Victor Stinner [Sat, 13 Sep 2025 16:57:46 +0000 (18:57 +0200)] 
gh-129813, PEP 782: Use PyBytesWriter in posix extension (#138829)

Replace PyBytes_FromStringAndSize(NULL, size) and _PyBytes_Resize()
with the new public PyBytesWriter API.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in memoryview (#138836)
Victor Stinner [Sat, 13 Sep 2025 16:36:05 +0000 (18:36 +0200)] 
gh-129813, PEP 782: Use PyBytesWriter in memoryview (#138836)

Replace PyBytes_FromStringAndSize(NULL, size) with the new public
PyBytesWriter API.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in socket and mmap (#138831)
Victor Stinner [Sat, 13 Sep 2025 16:31:26 +0000 (18:31 +0200)] 
gh-129813, PEP 782: Use PyBytesWriter in socket and mmap (#138831)

Replace PyBytes_FromStringAndSize(NULL, size) and _PyBytes_Resize()
with the new public PyBytesWriter API.

7 weeks agogh-129813, PEP 782: Use Py_GetConstant(Py_CONSTANT_EMPTY_BYTES) (#138830)
Victor Stinner [Sat, 13 Sep 2025 16:30:25 +0000 (18:30 +0200)] 
gh-129813, PEP 782: Use Py_GetConstant(Py_CONSTANT_EMPTY_BYTES) (#138830)

Replace PyBytes_FromStringAndSize(NULL, 0) with
Py_GetConstant(Py_CONSTANT_EMPTY_BYTES). Py_GetConstant() cannot
fail.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in _PyBytes_DecodeEscape2() (#138838)
Victor Stinner [Sat, 13 Sep 2025 16:28:08 +0000 (18:28 +0200)] 
gh-129813, PEP 782: Use PyBytesWriter in _PyBytes_DecodeEscape2() (#138838)

Replace the private _PyBytesWriter API with the new public
PyBytesWriter API.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in pickle and struct (#138833)
Victor Stinner [Sat, 13 Sep 2025 16:26:49 +0000 (18:26 +0200)] 
gh-129813, PEP 782: Use PyBytesWriter in pickle and struct (#138833)

Replace the private _PyBytesWriter API with the new public
PyBytesWriter API.

7 weeks agogh-129813, PEP 782: Use PyBytesWriter in binascii (#138825)
Victor Stinner [Sat, 13 Sep 2025 16:25:16 +0000 (18:25 +0200)] 
gh-129813, PEP 782: Use PyBytesWriter in binascii (#138825)

Replace the private _PyBytesWriter API with the new public
PyBytesWriter API.

8 weeks agoGH-128520: pathlib ABCs: improve protocol for 'openable' objects (#134101)
Barney Gale [Fri, 12 Sep 2025 21:25:18 +0000 (22:25 +0100)] 
GH-128520: pathlib ABCs: improve protocol for 'openable' objects (#134101)

Rename `pathlib._os.magic_open()` to `vfsopen()`. The new name is a bit
less abstract, and it aligns with the `vfspath()` method added in 5dbd27d.

Per discussion on discourse[^1], adjust `vfsopen()` so that the following
methods may be called:

- `__open_reader__()`
- `__open_writer__(mode)`
- `__open_updater__(mode)`

These three methods return readable, writable, and full duplex file objects
respectively. In the 'writer' method, *mode* is either 'a', 'w' or 'x'. In
the 'updater' method, *mode* is either 'r' or 'w'.

In the pathlib ABCs, replace `ReadablePath.__open_rb__()` with
`__open_reader__()`, and replace `WritablePath.__open_wb__()` with
`__open_writer__()`.

[^1]: https://discuss.python.org/t/open-able-objects/90238

Co-authored-by: Petr Viktorin <encukou@gmail.com>
8 weeks agogh-71648: Optimize PNG files (GH-138842)
Stan Ulbrych [Fri, 12 Sep 2025 20:13:05 +0000 (21:13 +0100)] 
gh-71648: Optimize PNG files (GH-138842)

* Only keep > 1 kb savings

8 weeks agogh-138804: Check type in `shlex.quote` (GH-138809)
Christoph Walcher [Fri, 12 Sep 2025 18:26:21 +0000 (20:26 +0200)] 
gh-138804: Check type in `shlex.quote` (GH-138809)

8 weeks agogh-71648: Remove unused image `Doc/faq/python-video-icon.png` (GH-138841)
Stan Ulbrych [Fri, 12 Sep 2025 16:16:51 +0000 (17:16 +0100)] 
gh-71648: Remove unused image `Doc/faq/python-video-icon.png` (GH-138841)

8 weeks agogh-129813, PEP 782: Use PyBytesWriter in _hashopenssl (#138835)
Victor Stinner [Fri, 12 Sep 2025 13:39:16 +0000 (15:39 +0200)] 
gh-129813, PEP 782: Use PyBytesWriter in _hashopenssl (#138835)

Replace PyBytes_FromStringAndSize(NULL, size) with the new public
PyBytesWriter API.

8 weeks agogh-138661: fix data race in `PyCode_Addr2Line` (#138664)
Kumar Aditya [Fri, 12 Sep 2025 12:34:55 +0000 (18:04 +0530)] 
gh-138661: fix data race in `PyCode_Addr2Line` (#138664)

8 weeks agogh-129813, PEP 782: Add PyBytesWriter_Format() (#138824)
Victor Stinner [Fri, 12 Sep 2025 12:21:57 +0000 (14:21 +0200)] 
gh-129813, PEP 782: Add PyBytesWriter_Format() (#138824)

Modify PyBytes_FromFormatV() to use the public PyBytesWriter API
rather than the _PyBytesWriter private API.

8 weeks agoImprove permission error messages in pdb and asyncio.tools (#134290)
ivonastojanovic [Fri, 12 Sep 2025 11:54:04 +0000 (12:54 +0100)] 
Improve permission error messages in pdb and asyncio.tools (#134290)

8 weeks agogh-129813, PEP 782: Add PyBytesWriter C API (#138822)
Victor Stinner [Fri, 12 Sep 2025 11:41:59 +0000 (13:41 +0200)] 
gh-129813, PEP 782: Add PyBytesWriter C API (#138822)

8 weeks agogh-138756: Fix leak of inittab memory in PyInitConfig_Free() (GH-138792)
Victor Stinner [Fri, 12 Sep 2025 09:46:02 +0000 (11:46 +0200)] 
gh-138756: Fix leak of inittab memory in PyInitConfig_Free() (GH-138792)

8 weeks agogh-138163: skip failures if tests are run with `SCHED_BATCH` on glibc (GH-138576)
jxes993409 [Fri, 12 Sep 2025 09:37:53 +0000 (17:37 +0800)] 
gh-138163: skip failures if tests are run with `SCHED_BATCH` on glibc (GH-138576)

8 weeks agogh-138669: Increase test coverage for difflib (GH-138670)
Jan-Eric Nitschke [Fri, 12 Sep 2025 09:33:38 +0000 (11:33 +0200)] 
gh-138669: Increase test coverage for difflib (GH-138670)

8 weeks agogh-138801: re-enable `pyrepl` tests on Windows (#138802)
Chris Eibl [Fri, 12 Sep 2025 07:47:43 +0000 (09:47 +0200)] 
gh-138801: re-enable `pyrepl` tests on Windows (#138802)

8 weeks agoRemove unused prototype `_PyPegen_set_source_in_metadata` (#138810)
Christoph Walcher [Fri, 12 Sep 2025 00:40:49 +0000 (02:40 +0200)] 
Remove unused prototype `_PyPegen_set_source_in_metadata` (#138810)

Remove unused prototype

8 weeks agoRevert "gh-116946: fully implement GC protocol for `_tkinter.Tk{app,tt}Object` (...
Peter Bierma [Thu, 11 Sep 2025 21:05:37 +0000 (17:05 -0400)] 
Revert "gh-116946: fully implement GC protocol for `_tkinter.Tk{app,tt}Object` (#138331)" (#138807)

This reverts commit 283380a9417eebf1bf9d3a1e941cef94149712bb.