]> git.ipfire.org Git - thirdparty/Python/cpython.git/log
thirdparty/Python/cpython.git
4 weeks agogh-146308: Fix error handling issues in _remote_debugging module (#146309)
Pablo Galindo Salgado [Sun, 22 Mar 2026 21:12:02 +0000 (21:12 +0000)] 
gh-146308: Fix error handling issues in _remote_debugging module (#146309)

4 weeks agogh-146192: Add base32 support to binascii (GH-146193)
kangtastic [Sun, 22 Mar 2026 21:10:28 +0000 (14:10 -0700)] 
gh-146192: Add base32 support to binascii (GH-146193)

Add base32 encoder and decoder functions implemented in
C to the binascii module and use them to greatly improve the
performance and reduce the memory usage of the existing
base32 codec functions in the base64 module.

4 weeks agogh-135953: Properly obtain main thread identifier in Gecko Collector (#146045)
flow [Sun, 22 Mar 2026 18:53:00 +0000 (15:53 -0300)] 
gh-135953: Properly obtain main thread identifier in Gecko Collector (#146045)

4 weeks agogh-143414: Implement unique reference tracking for JIT, optimize unpacking of such...
reiden [Sun, 22 Mar 2026 16:57:23 +0000 (00:57 +0800)] 
gh-143414: Implement unique reference tracking for JIT, optimize unpacking of such tuples (GH-144300)

Co-authored-by: Ken Jin <kenjin4096@gmail.com>
4 weeks agogh-146261: Fix bug in `_Py_uop_sym_set_func_version` (GH-146291)
Sacul [Sun, 22 Mar 2026 16:11:37 +0000 (00:11 +0800)] 
gh-146261: Fix bug in `_Py_uop_sym_set_func_version` (GH-146291)

4 weeks agogh-145144: Add more tests for UserList, UserDict, etc (GH-145145)
Serhiy Storchaka [Sun, 22 Mar 2026 14:22:25 +0000 (16:22 +0200)] 
gh-145144: Add more tests for UserList, UserDict, etc (GH-145145)

4 weeks agogh-143959: Fix test_datetime if _datetime is unavailable (GH-145248)
Serhiy Storchaka [Sun, 22 Mar 2026 14:15:35 +0000 (16:15 +0200)] 
gh-143959: Fix test_datetime if _datetime is unavailable (GH-145248)

4 weeks agogh-146245: Fix reference and buffer leaks via audit hook in socket module (GH-146248)
AN Long [Sun, 22 Mar 2026 11:29:34 +0000 (19:29 +0800)] 
gh-146245: Fix reference and buffer leaks via audit hook in socket module (GH-146248)

4 weeks agogh-140049: Colorize exception notes in `traceback.py` (#140051)
Stan Ulbrych [Sun, 22 Mar 2026 08:54:43 +0000 (08:54 +0000)] 
gh-140049: Colorize exception notes in `traceback.py` (#140051)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
4 weeks agoUpdate docs for gh-146056 (GH-146213)
Serhiy Storchaka [Sun, 22 Mar 2026 07:29:04 +0000 (09:29 +0200)] 
Update docs for gh-146056 (GH-146213)

4 weeks agoDocs: replace all `datetime` imports with `import datetime as dt` (#145640)
Hugo van Kemenade [Sat, 21 Mar 2026 16:02:06 +0000 (18:02 +0200)] 
Docs: replace all `datetime` imports with `import datetime as dt` (#145640)

4 weeks agogh-146153: Use `frozendict` in pure python fallback for `curses.has_key` (#146154)
Jonathan Dung [Sat, 21 Mar 2026 13:06:07 +0000 (21:06 +0800)] 
gh-146153: Use `frozendict` in pure python fallback for `curses.has_key` (#146154)

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
4 weeks agogh-138234: clarify returncode behavior for subprocesses created with `shell=True...
andreuu-tsai [Sat, 21 Mar 2026 12:32:28 +0000 (20:32 +0800)] 
gh-138234: clarify returncode behavior for subprocesses created with `shell=True` (#138536)

Co-authored-by: Kumar Aditya <kumaraditya@python.org>
4 weeks agogh-140947: fix contextvars handling for server tasks in asyncio (#141158)
Kumar Aditya [Sat, 21 Mar 2026 12:14:08 +0000 (17:44 +0530)] 
gh-140947: fix contextvars handling for server tasks in asyncio  (#141158)

4 weeks agoGH-100108: Add async generators best practices section (#141885)
Sergey Miryanov [Sat, 21 Mar 2026 11:59:15 +0000 (16:59 +0500)] 
GH-100108: Add async generators best practices section (#141885)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: Guido van Rossum <gvanrossum@gmail.com>
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
4 weeks agoGH-145667: Merge `GET_ITER` and `GET_YIELD_FROM_ITER` (GH-146120)
Mark Shannon [Sat, 21 Mar 2026 10:48:13 +0000 (10:48 +0000)] 
GH-145667: Merge `GET_ITER` and `GET_YIELD_FROM_ITER` (GH-146120)

* Merge GET_ITER and GET_YIELD_FROM_ITER. Modify SEND to make it a bit more like FOR_ITER

4 weeks agogh-146228: Better fork support in cached FastPath (#146231)
Jason R. Coombs [Fri, 20 Mar 2026 20:10:50 +0000 (16:10 -0400)] 
gh-146228: Better fork support in cached FastPath (#146231)

* Apply changes from importlib_metadata 8.9.0
* Suppress deprecation warning in fork.

4 weeks agogh-146227: Fix wrong type in _Py_atomic_load_uint16 in pyatomic_std.h (gh-146229)
Sam Gross [Fri, 20 Mar 2026 19:38:35 +0000 (15:38 -0400)] 
gh-146227: Fix wrong type in _Py_atomic_load_uint16 in pyatomic_std.h (gh-146229)

Also fix a few related issues in the pyatomic headers:

* Fix _Py_atomic_store_uint_release in pyatomic_msc.h to use __stlr32
  on ARM64 instead of a plain volatile store (which is only relaxed on
  ARM64).

* Add missing _Py_atomic_store_uint_release to pyatomic_gcc.h.

* Fix pseudo-code comment for _Py_atomic_store_ptr_release in
  pyatomic.h.

4 weeks agogh-145980: Fix copy/paste mistake in binascii.c (#146230)
Victor Stinner [Fri, 20 Mar 2026 18:12:10 +0000 (19:12 +0100)] 
gh-145980: Fix copy/paste mistake in binascii.c (#146230)

4 weeks agogh-146092: Raise MemoryError on allocation failure in _zoneinfo (#146165)
Victor Stinner [Fri, 20 Mar 2026 16:17:22 +0000 (17:17 +0100)] 
gh-146092: Raise MemoryError on allocation failure in _zoneinfo (#146165)

4 weeks agogh-91279: Note `SOURCE_DATE_EPOCH` support in `ZipFile.writestr()` doc (#139396)
Wulian233 [Fri, 20 Mar 2026 16:14:25 +0000 (00:14 +0800)] 
gh-91279: Note `SOURCE_DATE_EPOCH` support in `ZipFile.writestr()` doc (#139396)

Co-authored-by: Victor Stinner <vstinner@python.org>
4 weeks agogh-146196: Fix Undefined Behavior in _PyUnicodeWriter_WriteASCIIString() (#146201)
Shamil [Fri, 20 Mar 2026 15:58:41 +0000 (18:58 +0300)] 
gh-146196: Fix Undefined Behavior in _PyUnicodeWriter_WriteASCIIString() (#146201)

Avoid calling memcpy(data + writer->pos, NULL, 0)
which has an undefined behavior.

Co-authored-by: Victor Stinner <vstinner@python.org>
4 weeks agogh-143930: Reject leading dashes in webbrowser URLs
Seth Michael Larson [Fri, 20 Mar 2026 14:47:13 +0000 (09:47 -0500)] 
gh-143930: Reject leading dashes in webbrowser URLs

4 weeks agogh-145916: Soft-deprecate ctypes.util.find_library (GH-145919)
Petr Viktorin [Fri, 20 Mar 2026 14:00:10 +0000 (15:00 +0100)] 
gh-145916: Soft-deprecate ctypes.util.find_library (GH-145919)

* Put the "Loading shared libraries" section first
  * Adjust formatting at the end of the section
* In "Finding shared libraries", add more text about what's going on
* Move the stub function doc for find_library into "Finding shared libraries"
  * Also move the sister function, find_msvcrt. That's on the chopping block,
    but not removed now.

4 weeks agogh-146205: Check the errno with != 0 in close impls in select module (#146206)
AN Long [Fri, 20 Mar 2026 13:44:01 +0000 (21:44 +0800)] 
gh-146205: Check the errno with != 0 in close impls in select module (#146206)

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
4 weeks agogh-146171: Fix nested AttributeError suggestions (#146188)
Pablo Galindo Salgado [Fri, 20 Mar 2026 12:47:59 +0000 (12:47 +0000)] 
gh-146171: Fix nested AttributeError suggestions (#146188)

4 weeks agogh-146099: Optimize _GUARD_CODE_VERSION+IP via function version symbols (GH-146101)
Ken Jin [Fri, 20 Mar 2026 12:26:41 +0000 (20:26 +0800)] 
gh-146099: Optimize _GUARD_CODE_VERSION+IP via function version symbols (GH-146101)

4 weeks agogh-145980: Add support for alternative alphabets in the binascii module (GH-145981)
Serhiy Storchaka [Fri, 20 Mar 2026 11:07:00 +0000 (13:07 +0200)] 
gh-145980: Add support for alternative alphabets in the binascii module (GH-145981)

* Add the alphabet parameter in functions b2a_base64(), a2b_base64(),
  b2a_base85(), and a2b_base85().
* And a number of "*_ALPHABET" constants.
* Remove b2a_z85() and a2b_z85().

4 weeks agogh-145754: Update signature retrieval in unittest.mock to use forwardref annotation...
Matthias Schoettle [Fri, 20 Mar 2026 02:39:41 +0000 (22:39 -0400)] 
gh-145754: Update signature retrieval in unittest.mock to use forwardref annotation format (#145756)

4 weeks agogh-145177: Add emscripten run --test, uses test args from config.toml (#146160)
Hood Chatham [Thu, 19 Mar 2026 22:14:13 +0000 (23:14 +0100)] 
gh-145177: Add emscripten run --test, uses test args from config.toml (#146160)

This allows us to change the test arguments from the python repo rather
than having to change buildmaster-config.

Co-authored-by: Russell Keith-Magee <russell@keith-magee.com>
4 weeks agogh-131798: JIT: optimize _LOAD_COMMON_CONSTANT (GH-146104)
Mingzhu Yan [Thu, 19 Mar 2026 21:55:22 +0000 (05:55 +0800)] 
gh-131798: JIT: optimize _LOAD_COMMON_CONSTANT (GH-146104)

4 weeks agogh-145177: Add make-dependencies command to emscripten build script (#146158)
Hood Chatham [Thu, 19 Mar 2026 21:40:01 +0000 (22:40 +0100)] 
gh-145177: Add make-dependencies command to emscripten build script (#146158)

Adds a standalone target for building all dependencies so that the buildbot
script is independent of a specific dependency list.

4 weeks agoImprove tests for the PyUnicodeWriter C API (GH-146157)
Serhiy Storchaka [Thu, 19 Mar 2026 17:15:30 +0000 (19:15 +0200)] 
Improve tests for the PyUnicodeWriter C API (GH-146157)

Add tests for corner cases: NULL pointers and out of range values.

4 weeks agogh-145866 : Update JIT contributor list (GH-146170)
Sacul [Thu, 19 Mar 2026 13:40:09 +0000 (21:40 +0800)] 
gh-145866 : Update JIT contributor list (GH-146170)

4 weeks agogh-145633: Refine notes on non-IEEE platforms (#145845)
Sergey B Kirpichev [Thu, 19 Mar 2026 11:42:25 +0000 (14:42 +0300)] 
gh-145633: Refine notes on non-IEEE platforms (#145845)

* We don't specify what happens on non-IEEE platforms.
* Use rather PY_LITTLE_ENDIAN to get native endianness.
* Mention that unpack functions don't fail in CPython.
* Mention that PyFloat_Pack8 doesn't fail in CPython.

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
4 weeks agoGH-146096: Fix segfault in BaseExceptionGroup repr (#146141)
Sergey Miryanov [Thu, 19 Mar 2026 11:25:15 +0000 (16:25 +0500)] 
GH-146096: Fix segfault in BaseExceptionGroup repr (#146141)

4 weeks agogh-137696: Rename 'fort' parameter to 'order' in PyBuffer_* functions (#137866)
Carlos Sousa [Thu, 19 Mar 2026 11:24:27 +0000 (08:24 -0300)] 
gh-137696: Rename 'fort' parameter to 'order' in PyBuffer_* functions (#137866)

4 weeks agogh-145866: Convert `SET_UPDATE` to leave its inputs on the stack to be cleaned up...
Sacul [Thu, 19 Mar 2026 11:17:58 +0000 (19:17 +0800)] 
gh-145866: Convert `SET_UPDATE` to leave its inputs on the stack to be cleaned up by `_POP_TOP` (GH-145979)

4 weeks agogh-145394: Remove duplicated `isearch_add_character` in `_pyrepl/historical_reader...
Tan Long [Thu, 19 Mar 2026 11:08:01 +0000 (19:08 +0800)] 
gh-145394: Remove duplicated `isearch_add_character` in `_pyrepl/historical_reader.py` (#145396)

4 weeks agogh-145254: Fix formatting of thread safety annotations (#146111)
Lysandros Nikolaou [Thu, 19 Mar 2026 11:01:24 +0000 (12:01 +0100)] 
gh-145254: Fix formatting of thread safety annotations (#146111)

- Add leading space so that the spacing between the previous annotation
  and the thread safety annotation looks correct.
- Remove trailing period from the link to the thread safety level.

4 weeks agogh-146091: Fix NULL check in termios.tcsetwinsize (#146147)
Okiemute Enato [Thu, 19 Mar 2026 10:50:18 +0000 (03:50 -0700)] 
gh-146091: Fix NULL check in termios.tcsetwinsize (#146147)

4 weeks agogh-145177: Put node version into emscripten/config.toml. (#146156)
Hood Chatham [Thu, 19 Mar 2026 09:38:22 +0000 (10:38 +0100)] 
gh-145177: Put node version into emscripten/config.toml. (#146156)

Configure node version as part of the emscripten build script, and install
that node version if it isn't available.

4 weeks agogh-146143: Fix the PyUnicodeWriter_WriteUCS4() signature (GH-146144)
Serhiy Storchaka [Thu, 19 Mar 2026 08:23:01 +0000 (10:23 +0200)] 
gh-146143: Fix the PyUnicodeWriter_WriteUCS4() signature (GH-146144)

It now accepts a pointer to constant buffer of Py_UCS4.

4 weeks agogh-146056: Fix list.__repr__() for lists containing NULLs (GH-146129)
Serhiy Storchaka [Thu, 19 Mar 2026 07:59:48 +0000 (09:59 +0200)] 
gh-146056: Fix list.__repr__() for lists containing NULLs (GH-146129)

Co-authored-by: Victor Stinner <vstinner@python.org>
4 weeks agogh-145805: Add `python Platforms/emscripten run` subcommand (#146051)
Hood Chatham [Thu, 19 Mar 2026 01:06:17 +0000 (02:06 +0100)] 
gh-145805: Add `python Platforms/emscripten run` subcommand (#146051)

Provides a `run` command in the Emscripten build tooling, and adds
environment variable configuration for EMSDK_CACHE, CROSS_BUILD_DIR
and QUIET.

4 weeks agogh-145410: Add _sysconfig.get_platform() function (#146145)
Victor Stinner [Wed, 18 Mar 2026 23:28:21 +0000 (00:28 +0100)] 
gh-145410: Add _sysconfig.get_platform() function (#146145)

On Windows, sysconfig.get_platform() now gets the platform from the
_sysconfig module instead of parsing sys.version string.

4 weeks agogh-141510: Document isinstance change for frozendict in What's New (#146107)
Victor Stinner [Wed, 18 Mar 2026 22:09:18 +0000 (23:09 +0100)] 
gh-141510: Document isinstance change for frozendict in What's New (#146107)

4 weeks agogh-146121: `pkgutil.get_data()` reject invalid resource arguments (#146122)
Stan Ulbrych [Wed, 18 Mar 2026 17:31:01 +0000 (17:31 +0000)] 
gh-146121: `pkgutil.get_data()` reject invalid resource arguments (#146122)

4 weeks agogh-146092: Handle _PyFrame_GetFrameObject() failures properly (#146124)
Victor Stinner [Wed, 18 Mar 2026 17:27:52 +0000 (18:27 +0100)] 
gh-146092: Handle _PyFrame_GetFrameObject() failures properly (#146124)

* Fix _PyFrame_GetLocals() and _PyFrame_GetLocals() error handling.
* _PyEval_ExceptionGroupMatch() now fails on _PyFrame_GetLocals()
  error.

4 weeks agogh-146093: Fix csv _set_str(): check if PyUnicode_DecodeASCII() failed (#146113)
Victor Stinner [Wed, 18 Mar 2026 17:20:35 +0000 (18:20 +0100)] 
gh-146093: Fix csv _set_str(): check if PyUnicode_DecodeASCII() failed (#146113)

The function can fail on a memory allocation failure.

Bug reported by devdanzin.

4 weeks agogh-144888: JIT executor bloom filter wide-type optimization and function Inlining...
Hai Zhu [Wed, 18 Mar 2026 16:58:14 +0000 (00:58 +0800)] 
gh-144888:  JIT executor bloom filter wide-type optimization and function Inlining (GH-146114)

4 weeks agodocs: fix f-string in ExceptionGroup example (#146108)
Bartosz Grabowski [Wed, 18 Mar 2026 16:49:15 +0000 (17:49 +0100)] 
docs: fix f-string in ExceptionGroup example (#146108)

4 weeks agogh-142518: Annotate PyList_* C APIs for thread safety (#146109)
Lysandros Nikolaou [Wed, 18 Mar 2026 16:42:20 +0000 (17:42 +0100)] 
gh-142518: Annotate PyList_* C APIs for thread safety (#146109)

4 weeks agogh-146092: Fix error handling in _BINARY_OP_ADD_UNICODE opcode (#146117)
Victor Stinner [Wed, 18 Mar 2026 16:23:05 +0000 (17:23 +0100)] 
gh-146092: Fix error handling in _BINARY_OP_ADD_UNICODE opcode (#146117)

Fix also error handling in _BINARY_OP_ADD_FLOAT,
_BINARY_OP_SUBTRACT_FLOAT and _BINARY_OP_MULTIPLY_FLOAT opcodes.
PyStackRef_FromPyObjectSteal() must not be called with a NULL
pointer.

4 weeks agogh-66419: Make optional arguments with nargs=REMAINDER consume all arguments (GH...
Serhiy Storchaka [Wed, 18 Mar 2026 15:04:11 +0000 (17:04 +0200)] 
gh-66419: Make optional arguments with nargs=REMAINDER consume all arguments (GH-124509)

It no longer stops at the first '--'.

4 weeks agogh-142518: Add thread safety notes for the buffer protocol (#145911)
Lysandros Nikolaou [Wed, 18 Mar 2026 13:18:28 +0000 (14:18 +0100)] 
gh-142518: Add thread safety notes for the buffer protocol (#145911)

4 weeks agogh-146076: Fix crash when a `ZoneInfo` subclass is missing a `_weak_cache` (#146082)
Stan Ulbrych [Wed, 18 Mar 2026 12:58:08 +0000 (12:58 +0000)] 
gh-146076: Fix crash when a `ZoneInfo` subclass is missing a `_weak_cache` (#146082)

4 weeks agoGH-60729: Add IEEE format wave audio support (GH-145931)
Michiel W. Beijen [Wed, 18 Mar 2026 12:46:26 +0000 (13:46 +0100)] 
GH-60729: Add IEEE format wave audio support (GH-145931)

(this re-applies reverted commit 61f2a1a5993967ed4b97ba93a4477c37fe68cf59,
with a test fix)

Co-authored-by: Lionel Koenig <lionelk@google.com>
4 weeks agogh-146075: Prevent crash in `functools.partial()` from malformed `str` subclass ...
bkap123 [Wed, 18 Mar 2026 12:46:01 +0000 (08:46 -0400)] 
gh-146075: Prevent crash in `functools.partial()` from malformed `str` subclass (GH-146078)

In `partial_vectorcall`, an error returned by `PyDict_Contains` was
considered to be a truthy value. Now, the error is handled
appropriately.

4 weeks agoFix entry in `fuzz_pycompile.dict` (GH-146069)
Stan Ulbrych [Wed, 18 Mar 2026 12:43:55 +0000 (12:43 +0000)] 
Fix entry in `fuzz_pycompile.dict` (GH-146069)

5 weeks agogh-145779: Improve classmethod/staticmethod scaling in free-threaded build (#145826)
Sam Gross [Tue, 17 Mar 2026 18:24:44 +0000 (14:24 -0400)] 
gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (#145826)

Add special cases for classmethod and staticmethod descriptors in
_PyObject_GetMethodStackRef() to avoid calling tp_descr_get, which
avoids reference count contention on the bound method and underlying
callable. This improves scaling when calling classmethods and
staticmethods from multiple threads.

Also refactor method_vectorcall in classobject.c into a new _PyObject_VectorcallPrepend() helper so that it can be used by
PyObject_VectorcallMethod as well.

5 weeks agogh-146058: Fix _GUARD_CODE_VERSION_* (GH-146060)
Ken Jin [Tue, 17 Mar 2026 17:19:44 +0000 (01:19 +0800)] 
gh-146058: Fix _GUARD_CODE_VERSION_* (GH-146060)

5 weeks agogh-144975: Fix wave.Wave_write.setframerate() validation order (GH-144976)
Michiel W. Beijen [Tue, 17 Mar 2026 17:01:18 +0000 (18:01 +0100)] 
gh-144975: Fix wave.Wave_write.setframerate() validation order (GH-144976)

Validate the frame rate after rounding to an integer, not before.
This prevents values like 0.5 from passing validation (0.5 > 0)
but then rounding to 0, which would cause a confusing delayed error
"sampling rate not specified" when writing frames.

With this fix, setframerate(0.5) immediately raises "bad frame rate",
providing clear feedback at the point of the error.

5 weeks agogh-145966: Fix _csv DIALECT_GETATTR macro silently masking non-AttributeError excepti...
Ramin Farajpour Cami [Tue, 17 Mar 2026 15:08:53 +0000 (18:38 +0330)] 
gh-145966: Fix _csv DIALECT_GETATTR macro silently masking non-AttributeError exceptions (GH-145974)

The DIALECT_GETATTR macro in dialect_new() unconditionally called
PyErr_Clear() when PyObject_GetAttrString() failed, which suppressed
all exceptions including MemoryError, KeyboardInterrupt, and
RuntimeError. Now only AttributeError is cleared; other exceptions
propagate via the existing error handling path.

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
5 weeks agogh-131798: Optimize `_ITER_CHECK_RANGE` and `_ITER_CHECK_LIST` in the JIT (GH-144583)
Sacul [Tue, 17 Mar 2026 14:07:17 +0000 (22:07 +0800)] 
gh-131798: Optimize `_ITER_CHECK_RANGE` and `_ITER_CHECK_LIST` in the JIT (GH-144583)

5 weeks agogh-146054: Limit the growth of `encodings.search_function` cache (GH-146055)
Stan Ulbrych [Tue, 17 Mar 2026 14:02:59 +0000 (14:02 +0000)] 
gh-146054: Limit the growth of `encodings.search_function` cache (GH-146055)

5 weeks agogh-144545: Improve handling of default values in Argument Clinic (GH-146016)
Serhiy Storchaka [Tue, 17 Mar 2026 10:16:35 +0000 (12:16 +0200)] 
gh-144545: Improve handling of default values in Argument Clinic (GH-146016)

* Add the c_init_default attribute which is used to initialize the C variable
  if the default is not explicitly provided.
* Add the c_default_init() method which is used to derive c_default from
  default if c_default is not explicitly provided.
* Explicit c_default and py_default are now almost always have precedence
  over the generated value.
* Add support for bytes literals as default values.
* Improve support for str literals as default values (support non-ASCII
  and non-printable characters and special characters like backslash or quotes).
* Fix support for str and bytes literals containing trigraphs, "/*" and "*/".
* Improve support for default values in converters "char" and "int(accept={str})".
* Converter "int(accept={str})" now requires 1-character string instead of
  integer as default value.
* Add support for non-None default values in converter "Py_buffer": NULL,
  str and bytes literals.
* Improve error handling for invalid default values.
* Rename Null to NullType for consistency.

5 weeks agoDocs: a brief note in the sets tutorial about order (#145984)
Ned Batchelder [Tue, 17 Mar 2026 09:03:11 +0000 (05:03 -0400)] 
Docs: a brief note in the sets tutorial about order (#145984)

Docs: a brief note in the sets tut about order

5 weeks agogh-145176 Move Emscripten files into Platforms/emscripten (#145806)
Hood Chatham [Tue, 17 Mar 2026 01:39:45 +0000 (02:39 +0100)] 
gh-145176 Move Emscripten files into Platforms/emscripten (#145806)

Moves Emscripten build files into Platforms/emscripten.

5 weeks agogh-142927: Move hotspots up flamegraph sidebar (#145428)
Hugo van Kemenade [Mon, 16 Mar 2026 23:01:41 +0000 (00:01 +0100)] 
gh-142927: Move hotspots up flamegraph sidebar (#145428)

5 weeks agoDocs: remove unmatched parenthesis for `asyncio.TaskGroup` note (#146035)
trag1c [Mon, 16 Mar 2026 19:55:29 +0000 (20:55 +0100)] 
Docs: remove unmatched parenthesis for `asyncio.TaskGroup` note (#146035)

5 weeks agogh-145870: Fix Format.SOURCE reference in get_annotations docstring (#145889)
wavebyrd [Mon, 16 Mar 2026 19:25:31 +0000 (15:25 -0400)] 
gh-145870: Fix Format.SOURCE reference in get_annotations docstring (#145889)

The get_annotations() docstring incorrectly referred to the SOURCE
format, which was renamed to STRING during PEP 749 development.

Co-authored-by: Carson Jones <carson@Carsons-MacBook-Pro.local>
5 weeks agobuild(deps): bump hypothesis from 6.135.26 to 6.151.9 in /Tools (#145948)
dependabot[bot] [Mon, 16 Mar 2026 18:07:07 +0000 (19:07 +0100)] 
build(deps): bump hypothesis from 6.135.26 to 6.151.9 in /Tools (#145948)

Bumps [hypothesis](https://github.com/HypothesisWorks/hypothesis) from 6.135.26 to 6.151.9.
- [Release notes](https://github.com/HypothesisWorks/hypothesis/releases)
- [Commits](https://github.com/HypothesisWorks/hypothesis/compare/hypothesis-python-6.135.26...hypothesis-python-6.151.9)

---
updated-dependencies:
- dependency-name: hypothesis
  dependency-version: 6.151.9
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
5 weeks agogh-127958: Trace from RESUME in the JIT (GH-145905)
Ken Jin [Mon, 16 Mar 2026 16:18:59 +0000 (00:18 +0800)] 
gh-127958: Trace from RESUME in the JIT (GH-145905)

5 weeks ago gh-144888: Replace bloom filter linked lists with continuous arrays to optimize...
Hai Zhu [Mon, 16 Mar 2026 15:58:18 +0000 (23:58 +0800)] 
 gh-144888: Replace bloom filter linked lists with continuous arrays to optimize executor invalidating performance (GH-145873)

5 weeks agogh-135329: Remove flaky test_repl_eio test (gh-145932)
Sam Gross [Mon, 16 Mar 2026 15:08:07 +0000 (11:08 -0400)] 
gh-135329: Remove flaky test_repl_eio test (gh-145932)

The test doesn't actually test any pyrepl code (it runs Python with -S)
and has a race condition that causes intermittent timeouts on CI.

5 weeks agogh-146018: Disable over-aggressive optimization for _GUARD_CODE_VERSION (GH-145923)
Ken Jin [Mon, 16 Mar 2026 13:52:56 +0000 (21:52 +0800)] 
gh-146018: Disable over-aggressive optimization for _GUARD_CODE_VERSION (GH-145923)

5 weeks agoGH-145247: Use _PyTuple_FromPair in exceptions.c (GH-145910)
Sergey Miryanov [Mon, 16 Mar 2026 13:50:26 +0000 (18:50 +0500)] 
GH-145247: Use _PyTuple_FromPair in exceptions.c (GH-145910)

5 weeks agogh-145599, CVE 2026-3644: Reject control characters in `http.cookies.Morsel.update...
Stan Ulbrych [Mon, 16 Mar 2026 13:43:43 +0000 (13:43 +0000)] 
gh-145599, CVE 2026-3644: Reject control characters in `http.cookies.Morsel.update()` (#145600)

Reject control characters in `http.cookies.Morsel.update()` and `http.cookies.BaseCookie.js_output`.

Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Victor Stinner <victor.stinner@gmail.com>
5 weeks agogh-141510: Avoid critical section on frozendict copy (#145920)
Victor Stinner [Mon, 16 Mar 2026 13:19:00 +0000 (14:19 +0100)] 
gh-141510: Avoid critical section on frozendict copy (#145920)

5 weeks agogh-144984: Fix crash in Expat's `ExternalEntityParserCreate` error paths (#144992)
Ramin Farajpour Cami [Mon, 16 Mar 2026 12:30:13 +0000 (16:00 +0330)] 
gh-144984: Fix crash in Expat's `ExternalEntityParserCreate` error paths (#144992)

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
5 weeks agogh-145866: Convert `CALL_INTRINSIC_1` to leave its inputs on the stack to be cleaned...
Sacul [Mon, 16 Mar 2026 11:58:12 +0000 (19:58 +0800)] 
gh-145866: Convert `CALL_INTRINSIC_1` to leave its inputs on the stack to be cleaned up by `_POP_TOP`. (GH-145964)

5 weeks agogh-145649: Fix man page text wrapping for -X option (#145656)
Matt Van Horn [Mon, 16 Mar 2026 10:55:00 +0000 (03:55 -0700)] 
gh-145649: Fix man page text wrapping for -X option (#145656)

Replace hardcoded space indentation with proper troff macros
(.TP, .RS/.RE, .IP) for -X sub-options so text wraps correctly
at any terminal width.

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
5 weeks agogh-139038: Link to Savannah's webpage for JIT results (#146013)
Ken Jin [Mon, 16 Mar 2026 10:10:34 +0000 (18:10 +0800)] 
gh-139038: Link to Savannah's webpage for JIT results (#146013)

5 weeks agogh-123471: make concurrent iteration over itertools.accumulate thread-safe (#144486)
Pieter Eendebak [Mon, 16 Mar 2026 08:53:37 +0000 (09:53 +0100)] 
gh-123471: make concurrent iteration over itertools.accumulate thread-safe (#144486)

5 weeks agogh-129849: Add tests for `Py_tp_bases` (#143208)
AN Long [Mon, 16 Mar 2026 08:29:55 +0000 (17:29 +0900)] 
gh-129849: Add tests for `Py_tp_bases` (#143208)

5 weeks agoDocs: fix a form error and a grammatical error in float.rst (#140989)
RayXu [Mon, 16 Mar 2026 08:21:49 +0000 (16:21 +0800)] 
Docs: fix a form error and a grammatical error in float.rst (#140989)

5 weeks agogh-140814: Fix freeze_support() setting start method as side effect (GH-144608)
Gregory P. Smith [Mon, 16 Mar 2026 05:50:19 +0000 (22:50 -0700)] 
gh-140814: Fix freeze_support() setting start method as side effect (GH-144608)

freeze_support() called get_start_method() without allow_none=True,
which locked in the default start method context. This caused a
subsequent set_start_method() call to raise "context has already been
set". Use allow_none=True and accept None as a matching value, since
spawn.freeze_support() independently detects spawned child processes.

Test that freeze_support() does not lock in the default start method,
which would prevent a subsequent set_start_method() call.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
5 weeks agoExpand `fuzz_pycompile.dict` for new syntax
Stan Ulbrych [Sun, 15 Mar 2026 23:54:20 +0000 (23:54 +0000)] 
Expand `fuzz_pycompile.dict` for new syntax

5 weeks agogh-145990: sort `--help-env` sections by environment variable name (GH-145997)
Gregory P. Smith [Sun, 15 Mar 2026 22:22:57 +0000 (15:22 -0700)] 
gh-145990: sort `--help-env` sections by environment variable name (GH-145997)

* sort --help-env alphabetically by name.
* add a sorting regression test in test_help_env.

5 weeks agogh-145990: Sort `python --help-xoptions` by option name (GH-145991)
Gregory P. Smith [Sun, 15 Mar 2026 22:02:14 +0000 (15:02 -0700)] 
gh-145990: Sort `python --help-xoptions` by option name (GH-145991)

* Sort --help-xoptions alphabetically by name.
* add a sorting regression test in test_help_xoptions

5 weeks agogh-145998: Remove duplicated "What's New in 3.15" entry (#145994)
Shahar Naveh [Sun, 15 Mar 2026 21:54:19 +0000 (22:54 +0100)] 
gh-145998: Remove duplicated "What's New in 3.15" entry (#145994)

5 weeks agogh-145986: Avoid unbound C recursion in `conv_content_model` in `pyexpat.c` (CVE...
Stan Ulbrych [Sun, 15 Mar 2026 21:46:06 +0000 (21:46 +0000)] 
gh-145986: Avoid unbound C recursion in `conv_content_model` in `pyexpat.c` (CVE 2026-4224) (#145987)

Fix C stack overflow (CVE-2026-4224) when an Expat parser
with a registered `ElementDeclHandler` parses inline DTD
containing deeply nested content model.

---------

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
5 weeks agogh-145976: Remove `Misc/indent.pro` (#145992)
Stan Ulbrych [Sun, 15 Mar 2026 21:29:12 +0000 (21:29 +0000)] 
gh-145976: Remove `Misc/indent.pro` (#145992)

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
5 weeks agogh-122575: gh-142349: fix sys.flags tuple size (it unintentionally increased) (GH...
Gregory P. Smith [Sun, 15 Mar 2026 20:30:01 +0000 (13:30 -0700)] 
gh-122575: gh-142349: fix sys.flags tuple size (it unintentionally increased) (GH-145988)

the lazy imports PEP initial implementation (3.15 alpha) inadvertently incremented the length of the sys.flags tuple. In a way that did not do anything useful or related to the lazy imports setting (it exposed sys.flags.gil in the tuple). This fixes that to hard code the length to the 3.13 & 3.14 released length of 18 and have our tests and code comments make it clear that we've since stopped making new sys.flags attributes available via sequence index.

5 weeks agogh-145968: Fix base64.b64decode altchars translation in specific cases (GH-145969)
Matthieu Darbois [Sun, 15 Mar 2026 17:46:44 +0000 (18:46 +0100)] 
gh-145968: Fix base64.b64decode altchars translation in specific cases (GH-145969)

When altchars overlaps with the standard ones, the translation does not
always yield to the expected outcome.

5 weeks agogh-145976: Remove `Misc/{Porting,vgrindefs}` (#145973)
Stan Ulbrych [Sun, 15 Mar 2026 17:14:27 +0000 (17:14 +0000)] 
gh-145976: Remove `Misc/{Porting,vgrindefs}` (#145973)

Cleanup outdated files under Misc/

5 weeks agogh-142518: Document thread-safety guarantees of bytearray objects (#145226)
Lysandros Nikolaou [Sun, 15 Mar 2026 14:57:05 +0000 (15:57 +0100)] 
gh-142518: Document thread-safety guarantees of bytearray objects (#145226)

5 weeks agoBump mypy to 1.19.1 (#145956)
Brian Schubert [Sun, 15 Mar 2026 09:48:56 +0000 (05:48 -0400)] 
Bump mypy to 1.19.1 (#145956)

5 weeks agogh-141004: Document `PyDTrace*` (GH-141856)
Peter Bierma [Sun, 15 Mar 2026 02:58:35 +0000 (22:58 -0400)] 
gh-141004: Document `PyDTrace*` (GH-141856)