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2 weeks agoFix two typos in 'Exception Handling' C-API documentation (#150674)
Manoj K M [Tue, 2 Jun 2026 09:14:13 +0000 (14:44 +0530)] 
Fix two typos in 'Exception Handling' C-API documentation (#150674)

2 weeks agogh-149738: Fix segmentation fault bug in sqllite3 (#149754)
Sepehr Rasouli [Tue, 2 Jun 2026 09:07:08 +0000 (12:37 +0330)] 
gh-149738: Fix segmentation fault bug in sqllite3 (#149754)

Deleting the `row_factory` or `text_factory` attribute is no longer allowed.

2 weeks agogh-150052: Resolve un-loaded lazily loaded submodules via `module.__getattr__` instea...
Bartosz Sławecki [Tue, 2 Jun 2026 08:58:51 +0000 (10:58 +0200)] 
gh-150052: Resolve un-loaded lazily loaded submodules via `module.__getattr__` instead of publishing lazy values (#150055) (#150744)

2 weeks agogh-89554: Document typing.ParamSpecArgs and ParamSpecKwargs as classes (GH-150677)
Bernát Gábor [Tue, 2 Jun 2026 08:07:51 +0000 (01:07 -0700)] 
gh-89554: Document typing.ParamSpecArgs and ParamSpecKwargs as classes (GH-150677)

Use the directive "class" instead of "data" for ParamSpecArgs and ParamSpecKwargs.

2 weeks agogh-89554: Document standard type objects in types as classes (GH-150676)
Bernát Gábor [Tue, 2 Jun 2026 08:03:36 +0000 (01:03 -0700)] 
gh-89554: Document standard type objects in types as classes (GH-150676)

Use the directive and the role "class" instead of "data" for classes
exposed in the types module.

2 weeks agogh-89554: Document weakref type objects as classes (#150678)
Bernát Gábor [Tue, 2 Jun 2026 07:59:15 +0000 (00:59 -0700)] 
gh-89554: Document weakref type objects as classes (#150678)

Use the "class" directive instead of "data" for ReferenceType,
ProxyType and CallableProxyType.

2 weeks agogh-89554: Document NoneType, NotImplementedType and EllipsisType as classes (GH-150682)
Bernát Gábor [Tue, 2 Jun 2026 07:55:01 +0000 (00:55 -0700)] 
gh-89554: Document NoneType, NotImplementedType and EllipsisType as classes (GH-150682)

Always use the directive and the role "class" instead of "data" for
NoneType, NotImplementedType and EllipsisType.

2 weeks agogh-150717: Avoid mark-array allocation for groupless regex patterns (GH-150719)
Bernát Gábor [Tue, 2 Jun 2026 07:45:30 +0000 (00:45 -0700)] 
gh-150717: Avoid mark-array allocation for groupless regex patterns (GH-150719)

state_init() always did PyMem_New(state->mark, groups*2), which for a
pattern with no capturing groups is PyMem_Malloc(0) -- a real allocation
(plus matching free) on every match/search/fullmatch call, for an array
that is never read: groupless patterns emit no MARK opcodes and group 0's
span is taken from state->start/ptr.

Guard the allocation with `if (pattern->groups)`. state->mark stays NULL
(set by the preceding memset), and both the error path and state_fini
already PyMem_Free(NULL) safely.

2 weeks agogh-150228: Improve the PEP 829 batch processing APIs (#150542)
Barry Warsaw [Tue, 2 Jun 2026 01:43:18 +0000 (18:43 -0700)] 
gh-150228: Improve the PEP 829 batch processing APIs (#150542)

* gh-150228: Improve the PEP 829 batch processing APIs

As previously discussed with @ncoghlan and approved for 3.15b2 by @hugovk,
this implements the batch processing APIs for addsitedir() and friends.  We
remove the `defer_processing_start_files` flag which required some implicit
module global state, and promote StartupState to the public documented API.

This also moves the bulk of the module global functions into methods of the
`StartupState` class, so it removes the awkward APIs in 3.15b1.  Now, instances
of this class are an accumulator for startup state, using `StartupState.process()`
to process them.  Callers can now batch up startup state themselves by using
the methods on this class.  The module global functions are shims for this
which preserve the legacy APIs and semantics using the new state class.

This PR also fixes the interleaving regression identified by @ncoghlan in the
same issue.  Now, .pth file sys.path extensions are added to sys.path after
the sitedir that the .pth file is found in, restoring the legacy behavior.

Along the way, I've made a lot of improvements to function docstrings,
site.rst documentation, and comments in the code explaining what's going on.

* Add a note that if known_paths is provided to StartupState.__init__(), it
  will get mutated in place.
* Improve some conditional flows.
* Improve some comments.
* Improve the what's new entry.

* Make test_impl_exec_imports_suppressed_by_matching_start() more robust

Based on PR comment, we need to read both the .pth and .start files, and prove
that the .pth file's import line (which passes a bigger increment) is not
called, but the .start file's entry point (which uses the default increment)
is called.

* As per review, move some methods to the private API

_read_pth_file() and _read_start_file() are not intended to be part of the
public API surface outside of the site module, so even though they are used by
methods outside of the StartupState class, make them privately named.

* Resolve several review feedbacks

* Move a `versionadded`
* Better list comprehension formatting (use the output from
  `ruff format --line-length 78`)

* Add docs for site.makepath() and point the case-normalization requirement to
  this utility function.
* Note that StartupState.process() is not idempotent.

* Address another feedback comment

This time, we get rid of the legacy implementation `reset` local, which was
always difficult to understand, and just implement a return value based on the
processing mode selected.

* Changes based on gh-150228 review

The comment by @encukou that started this change:

```
I still see two red flags here though: an argument that doesn't combine with
other arguments, and (another instance of) changing the return type based on
an argument.

Did you consider adding a StartupState.addsitedir(sitedir) method, instead of
the startup_state argument?
```

As it turns out, this is an even cleaner design.  By moving the bulk of the
previous module global functions into `StartupState` methods, we can get rid
of all the awkward `startup_state` keyword-only arguments which conflict
with `known_path` (Petr's first point).  We can also get rid of the
return value dichotomy (Petr's second point) because now we can preserve
exactly the Python 3.14 API in the module global functions, and implement
the better APIs in the class methods.  We also generally don't have to
pass around `process_known_sitedirs`.

Now the following module global functions are essentially shims around
class methods:

* site.addsitedir() -> StartupState.addsitedir()
* site.addusersitepackages() -> StartupState.addusersitepackages()
* site.addsitepackages() -> StartupState.addsitepackages()
* Additional minor changes
* Remove a now unused parameter

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
2 weeks agogh-150720: Remove '-d 1' in test_script_error_treatment (#150736)
László Kiss Kollár [Tue, 2 Jun 2026 00:51:51 +0000 (01:51 +0100)] 
gh-150720: Remove '-d 1' in test_script_error_treatment (#150736)

2 weeks agogh-150644: Tag Apple system log messages as public. (#150645)
Russell Keith-Magee [Mon, 1 Jun 2026 22:25:46 +0000 (06:25 +0800)] 
gh-150644: Tag Apple system log messages as public. (#150645)

macOS 26 changed the default visibility of "dynamic" system messages. This
changes the logging strategy to tag all messages as "public" so they are
visible in the system log without special configuration.

2 weeks agogh-150429: Fix sampling profiler generator stack test (#150433)
Pablo Galindo Salgado [Mon, 1 Jun 2026 20:27:39 +0000 (21:27 +0100)] 
gh-150429: Fix sampling profiler generator stack test (#150433)

2 weeks agogh-93417: Improve test_mimetypes (GH-150725)
Serhiy Storchaka [Mon, 1 Jun 2026 20:02:40 +0000 (23:02 +0300)] 
gh-93417: Improve test_mimetypes (GH-150725)

* Separate tests for module-level API and for the MimeTypes class.
* Add tests for mimetypes.init() and MimeTypes() with knownfiles and with
  explicitly passed files.

2 weeks agogh-148672: Document namespace subpackages inside regular packages (#150056)
Taeknology [Mon, 1 Jun 2026 19:22:42 +0000 (04:22 +0900)] 
gh-148672: Document namespace subpackages inside regular packages (#150056)

2 weeks agogh-115119: Remove superfluous TEST_COVERAGE private macro from _decimal module (GH...
Sergey B Kirpichev [Mon, 1 Jun 2026 18:41:21 +0000 (21:41 +0300)] 
gh-115119: Remove superfluous TEST_COVERAGE private macro from _decimal module (GH-149756)

It was previously shared with `libmpdec`, which is no longer vendored.

2 weeks agoGH-148960: Reduce the size of the debug stencils to less than half. (GH-150551)
Mark Shannon [Mon, 1 Jun 2026 16:56:16 +0000 (17:56 +0100)] 
GH-148960: Reduce the size of the debug stencils to less than half. (GH-150551)

For AArch64 linux, reduces the total bytes in the code bodies from 489kb to 218kb.
Reduces the size of the stencils files from 394k lines to 167k lines.

2 weeks agoGH-150478: Add "show_jit" option to `dis.dis` to show jit entry points (GH-150554)
Mark Shannon [Mon, 1 Jun 2026 16:52:40 +0000 (17:52 +0100)] 
GH-150478: Add "show_jit" option to `dis.dis` to show jit entry points (GH-150554)

* Shows `ENTER_EXECUTOR` instructions

2 weeks agogh-150436: Skip subprocess test on STATUS_DLL_INIT_FAILED (#150704)
Victor Stinner [Mon, 1 Jun 2026 14:50:15 +0000 (16:50 +0200)] 
gh-150436: Skip subprocess test on STATUS_DLL_INIT_FAILED (#150704)

If a subprocess spawned with CREATE_NEW_CONSOLE creation flag fails
with STATUS_DLL_INIT_FAILED return code, skip the test. It's likely a
memory allocation failure in the desktop heap memory which caused the
DLL init failure.

2 weeks agogh-150157: Fix critical section for PyDict_Next() in _pickle.c (GH-150158)
Thomas Kowalski [Mon, 1 Jun 2026 14:32:13 +0000 (16:32 +0200)] 
gh-150157: Fix critical section for PyDict_Next() in _pickle.c (GH-150158)

2 weeks agogh-149534: Fix unification of `defaultdict` and `frozendict` with `|` (#149539)
sobolevn [Mon, 1 Jun 2026 13:26:49 +0000 (16:26 +0300)] 
gh-149534: Fix unification of `defaultdict` and `frozendict` with `|` (#149539)

2 weeks agogh-149046: fix: correctly handle `str` subclasses in `io.StringIO` (#149047)
Thomas Kowalski [Mon, 1 Jun 2026 13:01:57 +0000 (15:01 +0200)] 
gh-149046: fix: correctly handle `str` subclasses in `io.StringIO` (#149047)

2 weeks agogh-80480: Remove deprecated 'u' array type code (#149535)
Sergey B Kirpichev [Mon, 1 Jun 2026 11:57:55 +0000 (14:57 +0300)] 
gh-80480: Remove deprecated 'u' array type code (#149535)

Reuse array.typecodes in tests.

2 weeks agogh-150368: Change Windows user group to secure identifier in test_tempfile (#150369)
Dawid Konrad Kohnke [Mon, 1 Jun 2026 11:35:48 +0000 (13:35 +0200)] 
gh-150368: Change Windows user group to secure identifier in test_tempfile (#150369)

2 weeks agogh-148508: Add another common pattern for iOS SSL failures to test_ssl (#150442)
Russell Keith-Magee [Mon, 1 Jun 2026 09:37:53 +0000 (17:37 +0800)] 
gh-148508: Add another common pattern for iOS SSL failures to test_ssl (#150442)

Match also '[SSL: HTTP_REQUEST] http request (_ssl.c:1143)'.

2 weeks agogh-150685: update bundled pip to 26.1.2 (gh-150686)
Stéphane Bidoul [Sun, 31 May 2026 19:28:02 +0000 (21:28 +0200)] 
gh-150685: update bundled pip to 26.1.2 (gh-150686)

2 weeks agoClarify docs for scheduler.run(blocking=False) (GH-129575)
M. Greyson Christoforo [Sun, 31 May 2026 12:11:17 +0000 (13:11 +0100)] 
Clarify docs for scheduler.run(blocking=False) (GH-129575)

2 weeks agogh-150636: Clarify difference between copy.copy() and the copy() methods (GH-150637)
Serhiy Storchaka [Sun, 31 May 2026 12:08:55 +0000 (15:08 +0300)] 
gh-150636: Clarify difference between copy.copy() and the copy() methods (GH-150637)

Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com>
Co-authored-by: Stan Ulbrych <stan@python.org>
2 weeks agogh-148605: Remove irepeat() thread test from test_bytes (#150576)
Victor Stinner [Sun, 31 May 2026 09:27:10 +0000 (11:27 +0200)] 
gh-148605: Remove irepeat() thread test from test_bytes (#150576)

2 weeks agogh-140553: Mark `*gettext` parameters as positionaly only in documentation (#140598)
Stan Ulbrych [Sun, 31 May 2026 08:08:17 +0000 (09:08 +0100)] 
gh-140553: Mark `*gettext` parameters as positionaly only in documentation (#140598)

2 weeks agogh-131178: Fix mimetypes CLI docs, mention that errors go to stdout (#149683)
htjworld [Sun, 31 May 2026 07:45:48 +0000 (16:45 +0900)] 
gh-131178: Fix mimetypes CLI docs, mention that errors go to stdout (#149683)

Co-authored-by: sobolevn <mail@sobolevn.me>
2 weeks agoCorrect frexp() docs for zero and non-finite numbers (GH-149753)
Sergey B Kirpichev [Sun, 31 May 2026 07:29:44 +0000 (10:29 +0300)] 
Correct frexp() docs for zero and non-finite numbers (GH-149753)

0.5 <= abs(m) < 1 is only true for finite nonzero numbers

2 weeks agogh-149609: Raise deprecation warnings for `abc.{abstractclassmethod,abstractstaticmet...
sobolevn [Sun, 31 May 2026 07:26:52 +0000 (10:26 +0300)] 
gh-149609: Raise deprecation warnings for `abc.{abstractclassmethod,abstractstaticmethod,abstractproperty}` (#149636)

2 weeks agogh-117291: Explain usage of null bytes in Array(c_char).value (GH-117292)
Patrick Rauscher [Sun, 31 May 2026 07:20:49 +0000 (09:20 +0200)] 
gh-117291: Explain usage of null bytes in Array(c_char).value (GH-117292)

2 weeks agogh-141444:fix broken URLs and examples in urllib.request.rst (#144863)
Paper Moon [Sun, 31 May 2026 02:08:18 +0000 (10:08 +0800)] 
gh-141444:fix broken URLs and examples in urllib.request.rst (#144863)

* Doc: fix broken URLs and examples in urllib.request.rst (gh-141444)

* Doc: update urllib.request examples to handle gzip compression

---------

Co-authored-by: Senthil Kumaran <senthil@python.org>
2 weeks agoAdd @itamaro to CODEOWNERS (#150635)
Itamar Oren [Sat, 30 May 2026 20:49:11 +0000 (13:49 -0700)] 
Add @itamaro to CODEOWNERS (#150635)

Added myself as a code owner across CI and build-system areas

2 weeks agogh-150372: Add missing null check on completer_word_break_characters in readline...
Thomas Kowalski [Sat, 30 May 2026 19:26:05 +0000 (21:26 +0200)] 
gh-150372: Add missing null check on completer_word_break_characters in readline.c (GH-150251)

2 weeks agogh-150524: Remove outdated note in binascii.a2b_hex() documentation (GH-150525)
Joshix-1 [Sat, 30 May 2026 19:18:39 +0000 (21:18 +0200)] 
gh-150524: Remove outdated note in binascii.a2b_hex() documentation (GH-150525)

bytes.fromhex() accepts ASCII bytes and bytes-like objects as input since 3.14

2 weeks agogh-123138: Updated email.headerregistry docs to include required keyword parse_tree...
Gustaf [Sat, 30 May 2026 17:59:42 +0000 (19:59 +0200)] 
gh-123138: Updated email.headerregistry docs to include required keyword parse_tree (GH-134450)

2 weeks agogh-150406: Check result of PyThread_allocate_lock() for netdb_lock (GH-150407)
Thomas Kowalski [Sat, 30 May 2026 16:25:40 +0000 (18:25 +0200)] 
gh-150406: Check result of PyThread_allocate_lock() for netdb_lock (GH-150407)

2 weeks agogh-129851: Fix the documentation for -m command (GH-129862)
Dhruv Singla [Sat, 30 May 2026 15:47:14 +0000 (21:17 +0530)] 
gh-129851: Fix the documentation for -m command (GH-129862)

2 weeks agogh-144774: Add critical section in `BaseException.__setstate__` (#150578)
Brij Kapadia [Sat, 30 May 2026 15:37:27 +0000 (11:37 -0400)] 
gh-144774: Add critical section in `BaseException.__setstate__` (#150578)

2 weeks agoRemove unneeded LaTeX code from latex_elements['preamble'] (GH-124630)
Jean-François B. [Sat, 30 May 2026 15:19:56 +0000 (17:19 +0200)] 
Remove unneeded LaTeX code from latex_elements['preamble'] (GH-124630)

It was a workaround for Sphinx < 1.5.

2 weeks agogh-109503: Fix document for shutil.move() on usage of os.rename() since it's inaccura...
Fang Li [Sat, 30 May 2026 14:26:03 +0000 (07:26 -0700)] 
gh-109503: Fix document for shutil.move() on usage of os.rename() since it's inaccurate (GH-109507)

Nonatomic move might be used even if the files are
on the same filesystem in some cases.

2 weeks agogh-135898: Add section to free-threading howto about memory usage (#143279)
Neil Schemenauer [Sat, 30 May 2026 10:41:33 +0000 (03:41 -0700)] 
gh-135898: Add section to free-threading howto about memory usage (#143279)

Co-authored-by: Kumar Aditya <kumaraditya@python.org>
2 weeks agogh-121109: Fix performance of tarfile reading with "r|*" (GH-121296)
Tomi Belan [Sat, 30 May 2026 09:23:50 +0000 (11:23 +0200)] 
gh-121109: Fix performance of tarfile reading with "r|*" (GH-121296)

2 weeks agogh-150501: Correct `inspect.getattr_static` docs signature (#150504)
Jonathan Dung [Sat, 30 May 2026 09:18:25 +0000 (17:18 +0800)] 
gh-150501: Correct `inspect.getattr_static` docs signature (#150504)

2 weeks agogh-150560: Fix crash in XML parser on invalid XML with multi-byte encoding (GH-150568)
Serhiy Storchaka [Fri, 29 May 2026 21:23:32 +0000 (00:23 +0300)] 
gh-150560: Fix crash in XML parser on invalid XML with multi-byte encoding (GH-150568)

2 weeks agogh-149489: Fix ElementTree serialization to HTML (GH-149490)
Serhiy Storchaka [Fri, 29 May 2026 21:04:50 +0000 (00:04 +0300)] 
gh-149489: Fix ElementTree serialization to HTML (GH-149490)

* The content of comments, processing instructions and elements "xmp",
  "iframe", "noembed", "noframes", and "plaintext" is no longer escaped.
* The "plaintext" element no longer have the closing tag.
* Add support of empty attributes (with value None).

2 weeks agogh-149056: Properly pass array_hook in json.load() to json.loads() (GH-149057)
Thomas Kowalski [Fri, 29 May 2026 19:53:21 +0000 (21:53 +0200)] 
gh-149056: Properly pass array_hook in json.load() to json.loads() (GH-149057)

2 weeks agogh-150403: Document frozendict in language reference Mappings section (GH-150404)
Oral Ersoy Dokumacı [Fri, 29 May 2026 19:40:22 +0000 (21:40 +0200)] 
gh-150403: Document frozendict in language reference Mappings section (GH-150404)

2 weeks agogh-132372: Speed up logging.config existing logger handling (GH-150242)
esadomer [Fri, 29 May 2026 15:50:05 +0000 (18:50 +0300)] 
gh-132372: Speed up logging.config existing logger handling (GH-150242)

Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com>
2 weeks agoAdd a security warning about `pydoc`'s HTTP server (#150409)
Stan Ulbrych [Fri, 29 May 2026 12:29:59 +0000 (13:29 +0100)] 
Add a security warning about `pydoc`'s HTTP server (#150409)

2 weeks agoFix typos in InternalDocs/compiler.md (#149915)
Langyan [Fri, 29 May 2026 10:14:20 +0000 (18:14 +0800)] 
Fix typos in InternalDocs/compiler.md (#149915)

2 weeks agogh-150454: Fix wrong-interpreter return in import_run_extension error path (#150455)
pengyu lee [Fri, 29 May 2026 10:03:37 +0000 (18:03 +0800)] 
gh-150454: Fix wrong-interpreter return in import_run_extension error path (#150455)

2 weeks agogh-150345: Fix incorrect reference in BaseSelectorEventLoop docstring (#150538)
kodsurfer [Fri, 29 May 2026 09:54:58 +0000 (12:54 +0300)] 
gh-150345: Fix incorrect reference in BaseSelectorEventLoop docstring (#150538)

2 weeks agogh-150107: Fix asyncio sendfile fallback ignoring non-zero offset (#150270)
Grant Herman [Fri, 29 May 2026 09:40:57 +0000 (05:40 -0400)] 
gh-150107: Fix asyncio sendfile fallback ignoring non-zero offset (#150270)

Co-authored-by: Victor Stinner <vstinner@python.org>
2 weeks agogh-148587: Make sys.lazy_modules match PEP and keep internal lazy submodules tracking...
Bartosz Sławecki [Fri, 29 May 2026 00:55:47 +0000 (02:55 +0200)] 
gh-148587: Make sys.lazy_modules match PEP and keep internal lazy submodules tracking internal (#150086)

Make sys.lazy_modules match PEP and keep internal lazy submodules tracking internal

Co-authored-by: Dino Viehland <dinoviehland@meta.com>
2 weeks agogh-139398: [Enum] Add supported sunder names to `__dir__` for REPL completions (GH...
Rafael Weingartner-Ortner [Thu, 28 May 2026 19:55:38 +0000 (21:55 +0200)] 
gh-139398: [Enum] Add supported sunder names to `__dir__` for REPL completions (GH-139985)

* Add supported sunder names to Enum `__dir__`

This change adds the sunder names `_generate_next_value_`
and `_missing_` to the `__dir__` method of `EnumType` and `Enum`.
In Addition, The instance level sunder names
`_add_alias_` and `_add_value_alias_` are added to `Enum.__dir__`.

With the sunder names exposed in the `dir()` method,
the REPL autocomplete will also show them.

---------

Co-authored-by: SimonGPrs <107691772+SimonGPrs@users.noreply.github.com>
Co-authored-by: Ethan Furman <ethan@stoneleaf.us>
2 weeks agogh-150046: Fix `test_add_python_opts` to ignore `PYTHON*` env vars (#150089)
Pradyun Gedam [Thu, 28 May 2026 16:48:51 +0000 (17:48 +0100)] 
gh-150046: Fix `test_add_python_opts` to ignore `PYTHON*` env vars (#150089)

Avoid the runtime environment from affecting the tests' behaviours,
which notably checks the warning filters which can be controlled by
various PYTHON environment variables.

2 weeks agogh-115988: Add ARM64 and RISCV BCJ filters constants in lzma module (GH-115989)
Chien Wong [Thu, 28 May 2026 15:05:03 +0000 (23:05 +0800)] 
gh-115988: Add ARM64 and RISCV BCJ filters constants in lzma module (GH-115989)

---------

Signed-off-by: Chien Wong <m@xv97.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
2 weeks agogh-150311: Fix minor issues in configure.ac for Cygwin (#150328)
Armaan Sandhu [Thu, 28 May 2026 12:38:39 +0000 (18:08 +0530)] 
gh-150311: Fix minor issues in configure.ac for Cygwin (#150328)

- Use 'CYGWIN' (uppercase) for ac_sys_system to match the casing used
  in all case-pattern references throughout configure.ac.
- Fix LDLIBRARY for static builds: use '.a' extension instead of
  '.dll.a' when shared libraries are disabled.
- Replace hardcoded 'gcc' and 'g++' with '$(CC)' and '$(CXX)' in
  LDSHARED/LDCXXSHARED for Cygwin.

Co-authored-by: Victor Stinner <vstinner@python.org>
2 weeks agoFix docs for PyThreadState_GetDict() in threads.rst (#150401)
manoj-marimuthu [Thu, 28 May 2026 12:13:58 +0000 (17:43 +0530)] 
Fix docs for PyThreadState_GetDict() in threads.rst (#150401)

2 weeks agogh-85989: Add skip_if_double_rounding to test.support (#150219)
Sergey B Kirpichev [Thu, 28 May 2026 11:42:39 +0000 (14:42 +0300)] 
gh-85989: Add skip_if_double_rounding to test.support (#150219)

Co-authored-by: Victor Stinner <vstinner@python.org>
2 weeks agogh-148871: make `LOAD_COMMON_CONSTANT` use immortal stackref borrows (GH-149625)
Neko Asakura [Thu, 28 May 2026 11:27:37 +0000 (19:27 +0800)] 
gh-148871: make `LOAD_COMMON_CONSTANT` use immortal stackref borrows (GH-149625)

2 weeks agoUpdate `qsbr.md` doc to be more accurate (#148537)
Neil Schemenauer [Thu, 28 May 2026 10:30:22 +0000 (03:30 -0700)] 
Update `qsbr.md` doc to be more accurate (#148537)

2 weeks agoAdd prominent crash warning to `ctypes` docs (GH-150410)
Stan Ulbrych [Thu, 28 May 2026 08:13:14 +0000 (09:13 +0100)] 
Add prominent crash warning to `ctypes` docs (GH-150410)

Co-authored-by: Petr Viktorin <encukou@gmail.com>
3 weeks agogh-149029: Update SQLite to 3.53.1 for binary releases (#149767)
Adam Johnson [Wed, 27 May 2026 22:03:34 +0000 (23:03 +0100)] 
gh-149029: Update SQLite to 3.53.1 for binary releases (#149767)

3 weeks agogh-84353: Preserve non-UTF-8 filenames when appending to ZipFile (GH-150091)
Serhiy Storchaka [Wed, 27 May 2026 17:56:38 +0000 (20:56 +0300)] 
gh-84353: Preserve non-UTF-8 filenames when appending to ZipFile (GH-150091)

Preserve non-UTF-8 filenames when appending to a ZipFile.

---------

Co-authored-by: Gregory P. Smith <greg@krypto.org>
3 weeks agogh-141984: Remove accidental merge markers (GH-150517)
Petr Viktorin [Wed, 27 May 2026 14:20:50 +0000 (16:20 +0200)] 
gh-141984: Remove accidental merge markers (GH-150517)

3 weeks agogh-141984: Reword docs on "enclosed" atom grammar (GH-148622)
Petr Viktorin [Wed, 27 May 2026 12:32:33 +0000 (14:32 +0200)] 
gh-141984: Reword docs on "enclosed" atom grammar (GH-148622)

Reorganize and reword the docs on atoms in parentheses, brackets and braces:
parenthesized groups, list/set/dict/tuple displays, and comprehensions.
(Generator expressions and yield atoms are left for later.)

In the spirit of better matching the underlying grammar, *comprehensions* are
covered separately from non-comprehension displays. Also, parenthesized forms
(with a single expression) and tuple displays are separated.
All sections are rewritten to start with simple cases and build up to the full
formal grammar.

Co-authored-by: Blaise Pabon <blaise@gmail.com>
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
3 weeks agogh-150389: Make perf profiler tests resilient (#150437)
Pablo Galindo Salgado [Wed, 27 May 2026 12:22:56 +0000 (13:22 +0100)] 
gh-150389: Make perf profiler tests resilient (#150437)

3 weeks agogh-149861: Fix rule in match statement `case_block` PEG grammar (GH-149908)
Ivy Xu [Wed, 27 May 2026 10:25:21 +0000 (18:25 +0800)] 
gh-149861: Fix rule in match statement `case_block` PEG grammar (GH-149908)

3 weeks agogh-149571: Fix the C implementation of Element.itertext() (GH-149929)
Serhiy Storchaka [Wed, 27 May 2026 10:23:28 +0000 (13:23 +0300)] 
gh-149571: Fix the C implementation of Element.itertext() (GH-149929)

It no longer emits text for comments and processing instructions.

3 weeks agogh-149879: Fix test_grp on Cygwin (#150495)
Victor Stinner [Tue, 26 May 2026 21:16:16 +0000 (23:16 +0200)] 
gh-149879: Fix test_grp on Cygwin (#150495)

3 weeks agogh-62259: Add support of multi-byte encodings in the XML parser (GH-149860)
Serhiy Storchaka [Tue, 26 May 2026 19:40:25 +0000 (22:40 +0300)] 
gh-62259: Add support of multi-byte encodings in the XML parser (GH-149860)

Supported encodings: "cp932", "cp949", "cp950", "Big5","EUC-JP",
"GB2312", "GBK", "johab", and "Shift_JIS".

Partially supported encodings (only BMP characters): "Big5-HKSCS",
"EUC_JIS-2004", "EUC_JISX0213", "Shift_JIS-2004", "Shift_JISX0213",
"utf-8-sig" and non-standard aliases like "UTF8" (without hyphen).

The parser now raises ValueError for known unsupported
multi-byte encodings such us "ISO-2022-JP" or "raw-unicode-escape"
instead of failing later, when encounter non-ASCII data.

3 weeks agogh-150486: Remove dead `_buffer_factory` attribute from `_SelectorDatagramTransport...
deadlovelll [Tue, 26 May 2026 19:07:27 +0000 (22:07 +0300)] 
gh-150486: Remove dead `_buffer_factory` attribute from `_SelectorDatagramTransport` (#150487)

3 weeks agogh-88726: Stop using non-standard charset names eucgb2312_cn and big5_tw in email...
Serhiy Storchaka [Tue, 26 May 2026 18:52:47 +0000 (21:52 +0300)] 
gh-88726: Stop using non-standard charset names eucgb2312_cn and big5_tw in email (GH-149959)

3 weeks agogh-149879: Fix test_embed on Cygwin (#150441)
Victor Stinner [Tue, 26 May 2026 16:33:08 +0000 (18:33 +0200)] 
gh-149879: Fix test_embed on Cygwin (#150441)

3 weeks agogh-149879: Fix test_venv on Cygwin (#150483)
Victor Stinner [Tue, 26 May 2026 16:32:13 +0000 (18:32 +0200)] 
gh-149879: Fix test_venv on Cygwin (#150483)

In copy mode, venv now also copies the cygpython DLL.

Fix test_zippath_from_non_installed_posix(): copy also the cygpython
DLL.

3 weeks agogh-148557: Use em-config to locate trampoline clang (#148556)
Clément Péron [Tue, 26 May 2026 15:57:08 +0000 (17:57 +0200)] 
gh-148557: Use em-config to locate trampoline clang (#148556)

When CC is wrapped by ccache, the Emscripten trampoline rule cannot derive the
matching clang path by treating CC as a single executable path. Query the active
LLVM toolchain path with em-config instead.

3 weeks agoGH-126910: Make `_Py_get_machine_stack_pointer` return the actual stack pointer ...
Mark Shannon [Tue, 26 May 2026 14:14:17 +0000 (15:14 +0100)] 
GH-126910: Make `_Py_get_machine_stack_pointer` return the actual stack pointer (GH-149103)

* Make _Py_ReachedRecursionLimit inline again
* Remove _Py_MakeRecCheck replacing its use with _Py_ReachedRecursionLimit
* Move the check for C stack swtiching into _Py_CheckRecursiveCall

3 weeks agogh-139310: Revert test skip for `test_aead_aes_gcm` (GH-139552) (GH-149687)
Petr Viktorin [Tue, 26 May 2026 12:36:36 +0000 (14:36 +0200)] 
gh-139310: Revert test skip for `test_aead_aes_gcm` (GH-139552) (GH-149687)

This reverts commit 41712c4e095b2cc988febfe3887616c2779c6210.

Anyone running tests on a kernel with the bug will now see a failure.

3 weeks agogh-150443: Exclude explicit dup3 and pipe2 checks on iOS builds. (#150444)
Russell Keith-Magee [Tue, 26 May 2026 03:39:34 +0000 (11:39 +0800)] 
gh-150443: Exclude explicit dup3 and pipe2 checks on iOS builds. (#150444)

Exclude explicit dup3 and pipe2 checks on iOS builds.

3 weeks agogh-149879: Fix test_math and test_statistics on Cygwin (#150432)
Victor Stinner [Tue, 26 May 2026 02:39:22 +0000 (04:39 +0200)] 
gh-149879: Fix test_math and test_statistics on Cygwin (#150432)

* Skip tests which fail on Cygwin: when Python is linked to
  the newlib C library.
* Rename test_random() to test_fma_random().
* Move tests on large integer values from testLog2() to
  testLog2Exact().

3 weeks agogh-149879: Fix test_strptime on Cygwin (#150438)
Victor Stinner [Tue, 26 May 2026 02:25:07 +0000 (04:25 +0200)] 
gh-149879: Fix test_strptime on Cygwin (#150438)

Skip my_MM and or_IN locales on multiple tests, since the tests fail
on Cygwin.

3 weeks agogh-149879: Fix multiprocessing resource tracker tests on Cygwin (#150440)
Victor Stinner [Tue, 26 May 2026 02:23:52 +0000 (04:23 +0200)] 
gh-149879: Fix multiprocessing resource tracker tests on Cygwin (#150440)

Skip test_resource_tracker_sigterm() if signal.pthread_sigmask() is
missing.

3 weeks agogh-149931: Fix memory leaks on failed realloc (#149932)
AN Long [Tue, 26 May 2026 00:37:14 +0000 (09:37 +0900)] 
gh-149931: Fix memory leaks on failed realloc (#149932)

3 weeks agogh-149619: Harden _remote_debugging error paths (#150349)
Pablo Galindo Salgado [Mon, 25 May 2026 22:22:46 +0000 (23:22 +0100)] 
gh-149619: Harden _remote_debugging error paths (#150349)

3 weeks agogh-149879: Fix test_ftplib on Cygwin (#150431)
Victor Stinner [Mon, 25 May 2026 22:09:41 +0000 (00:09 +0200)] 
gh-149879: Fix test_ftplib on Cygwin (#150431)

Skip test_abort() since MSG_OOB doesn't work properly on Cygwin. The
server gets b'\n' and then b'ABOR\r', instead of getting b'ABOR\r\n'.

3 weeks agogh-149800: Fix macOS universal2 build of perf trampoline (GH-149894 follow-up) (...
Pablo Galindo Salgado [Mon, 25 May 2026 22:01:27 +0000 (23:01 +0100)] 
gh-149800: Fix macOS universal2 build of perf trampoline (GH-149894 follow-up) (#150364)

After the perf trampoline assembly was split into per-architecture files,
the macOS universal2 build failed at the lipo step:

    fatal error: lipo: Python/asm_trampoline_aarch64.o and
    Python/asm_trampoline_x86_64.o have the same architectures (x86_64)
    and can't be in the same fat output file

PY_CORE_CFLAGS on universal2 contains "-arch arm64 -arch x86_64", so each
.S file was assembled into a fat .o containing both slices (with one slice
empty because of the #ifdef guards). lipo then refused to merge two fat
objects that share architectures.

Compile each per-arch object with a single -arch flag before merging.

3 weeks agogh-150114: Use get_process_memory_usage() in memory watchdog (#150402)
Victor Stinner [Mon, 25 May 2026 21:15:12 +0000 (23:15 +0200)] 
gh-150114: Use get_process_memory_usage() in memory watchdog (#150402)

In practice, this change adds Windows, FreeBSD and macOS support
to the memory watchdog.

3 weeks agogh-149879: Fix test_concurrent_futures on Cygwin (#150415)
Victor Stinner [Mon, 25 May 2026 21:04:14 +0000 (23:04 +0200)] 
gh-149879: Fix test_concurrent_futures on Cygwin (#150415)

On Cygwin, skip tests using "forkserver" start method.

Don't check BrokenProcessPool.__cause__, it's not set on Cygwin.

3 weeks agogh-150427: Remove unused `__linecnt` attribute from `_sitebuiltins` (#150428)
Angelo Licastro [Mon, 25 May 2026 20:56:27 +0000 (16:56 -0400)] 
gh-150427: Remove unused `__linecnt` attribute from `_sitebuiltins` (#150428)

3 weeks agogh-149879: Fix test_asyncio on Cygwin (#150416)
Victor Stinner [Mon, 25 May 2026 20:54:01 +0000 (22:54 +0200)] 
gh-149879: Fix test_asyncio on Cygwin (#150416)

Skip tests on UNIX sockets since they hang on Cygwin.

3 weeks agogh-149879: Fix test_ssl on Cygwin (#150419)
Victor Stinner [Mon, 25 May 2026 20:32:37 +0000 (22:32 +0200)] 
gh-149879: Fix test_ssl on Cygwin (#150419)

On Cygwin, ignore EAGAIN in SSLSocket._create() if getpeername() fails.

3 weeks agogh-149879: Fix test_httpservers on Cygwin (#150417)
Victor Stinner [Mon, 25 May 2026 19:50:35 +0000 (21:50 +0200)] 
gh-149879: Fix test_httpservers on Cygwin (#150417)

3 weeks agogh-150387: Fix hang in test_run_failed_script_live on slow buildbots (#150405)
Pablo Galindo Salgado [Mon, 25 May 2026 18:17:00 +0000 (19:17 +0100)] 
gh-150387: Fix hang in test_run_failed_script_live on slow buildbots (#150405)

3 weeks agogh-131372: Fix a typo on "with_build_details_suffix" in configure (#150414)
Stefano Rivera [Mon, 25 May 2026 17:33:59 +0000 (10:33 -0700)] 
gh-131372: Fix a typo on "with_build_details_suffix" in configure (#150414)

Fix a typo in an error-handling path.

3 weeks agogh-149879: Fix test_termios and test_ioctl on Cygwin (#150412)
Victor Stinner [Mon, 25 May 2026 17:06:28 +0000 (19:06 +0200)] 
gh-149879: Fix test_termios and test_ioctl on Cygwin (#150412)

Skip tests failing on Cygwin.

3 weeks agogh-150114: Log the memory usage in regrtest on macOS (gh-150396)
Donghee Na [Mon, 25 May 2026 15:03:06 +0000 (08:03 -0700)] 
gh-150114: Log the memory usage in regrtest on macOS (gh-150396)