Fix an issue where passing invalid arguments to `os.posix_spawn[p]` functions
raised a SystemError instead of a TypeError, and allow to explicitly use `None`
for `scheduler` and `setpgroup` as specified in the docs.
(cherry picked from commit 347fc438cf)
gh-144694: Fix re.Match.group() doc claiming [1..99] range limit (GH-144696)
The documentation incorrectly stated that numeric group arguments
must be in the range [1..99]. This limit was removed in Python 3.5
(bpo-22437). Replace with "a positive integer" since the next
sentence already documents the IndexError for out-of-range values.
(cherry picked from commit 85021bc247)
Co-authored-by: Mohsin Mehmood <55545648+mohsinm-dev@users.noreply.github.com>
gh-144748: Document 3.12 and 3.14 changes to `PyErr_CheckSignals` (GH-144982)
(cherry picked from commit 06292614ff)
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
gh-144156: Fix email header folding concatenating encoded words (GH-144692)
The fix for gh-92081 (gh-92281) was unfortunately flawed, and broke whitespace handling for encoded word patterns that had previously been working correctly but had no corresponding tests, unfortunately in a way that made the resulting headers not RFC compliant, in such a way that Yahoo started rejecting the resulting emails. This fix was released in 3.14 alpha 1, 3.13 beta 2 and 3.12.5. This PR fixes the original problem in a way that does not break anything, and in fact fixes a small pre-existing bug (a spurious whitespace after the ':' of the header label if the header value is immediately wrapped on to the next line). (RDM)
(cherry picked from commit 0f7cd5544a)
Co-authored-by: Robsdedude <dev@rouvenbauer.de>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: R. David Murray <rdmurray@bitdance.com>
Remove unused :platform: in module's docs (GH-144988)
It has not been outputted since Sphinx 1.1.
(cherry picked from commit 20caf1c084)
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
gh-144763: Fix race conditions in tracemalloc (#144779)
Avoid PyUnstable_InterpreterFrame_GetLine() since it uses a critical
section which can lead to a deadlock.
_PyTraceMalloc_Stop() now also calls PyRefTracer_SetTracer() without
holding TABLES_LOCK() to prevent another deadlock.
(cherry picked from commit 83f4fffe3d)
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
(cherry picked from commit c6a142f947)
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
gh-143637: Fix test_socket.test_sendmsg_reentrant_ancillary_mutation() on Solaris (GH-144890)
Use socket.SCM_RIGHTS operation.
(cherry picked from commit 63531a3867)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-144782: Make sure that ArgumentParser instances are pickleable (GH-144783)
(cherry picked from commit 2f7634c029)
Co-authored-by: Mauricio Villegas <5780272+mauvilsa@users.noreply.github.com>
Co-authored-by: Bartosz Sławecki <bartosz@ilikepython.com>
Co-authored-by: AN Long <aisk@users.noreply.github.com>
Co-authored-by: Savannah Ostrowski <savannah@python.org>
gh-144601: Avoid sharing exception objects raised in a `PyInit` function across multiple interpreters (GH-144602)
(cherry picked from commit fd6b639a49)
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
gh-144833: Fix use-after-free in SSL module when SSL_new() fails (GH-144843)
In newPySSLSocket(), when SSL_new() returns NULL, Py_DECREF(self)
was called before _setSSLError(get_state_ctx(self), ...), causing
a use-after-free. Additionally, get_state_ctx() was called with
self (PySSLSocket*) instead of sslctx (PySSLContext*), which is
a type confusion bug.
Fix by calling _setSSLError() before Py_DECREF() and using
sslctx instead of self for get_state_ctx().
(cherry picked from commit c91638ca06)
Co-authored-by: Ramin Farajpour Cami <ramin.blackhat@gmail.com>
gh-144759: Fix undefined behavior from NULL pointer arithmetic in lexer (GH-144788)
Guard against NULL pointer arithmetic in `_PyLexer_remember_fstring_buffers`
and `_PyLexer_restore_fstring_buffers`. When `start` or `multi_line_start`
are NULL (uninitialized in tok_mode_stack[0]), performing `NULL - tok->buf`
is undefined behavior. Add explicit NULL checks to store -1 as sentinel
and restore NULL accordingly.
Add test_lexer_buffer_realloc_with_null_start to test_repl.py that
exercises the code path where the lexer buffer is reallocated while
tok_mode_stack[0] has NULL start/multi_line_start pointers. This
triggers _PyLexer_remember_fstring_buffers and verifies the NULL
checks prevent undefined behavior.
(cherry picked from commit e6110efd03)
Co-authored-by: Ramin Farajpour Cami <ramin.blackhat@gmail.com>
[3.14] gh-144551: Update CI to use latest OpenSSL versions
Also update _ssl_data_35.h to include an added symbol from 3.5.5.
(cherry picked from commit b933ef9261)
gh-144787: [tests] Allow TLS v1.2 to be minimum version (GH-144790)
Allow TLS v1.2 to be minimum version
Updates test_min_max_version to allow TLS v1.2 to be minimum version if
TLS 1.0 and 1.1 are disabled in OpenSSL.
(cherry picked from commit d625f7da33)
Co-authored-by: Colin McAllister <colinmca242@gmail.com>
* gh-141563: Enable test_cppext internal C API tests on macOS (#144711)
Build the C API in C++11 mode on macOS.
(cherry picked from commit c6e418d174)
* gh-135906: Test more internal headers in test_cext/test_cppext (#144751)
(cherry picked from commit b488f338cf)
gh-144706: Warn against using synchronization primitives within signal handlers (GH-144736)
(cherry picked from commit 945bf8ce1b)
Co-authored-by: Robsdedude <dev@rouvenbauer.de>
Lookup for CJK ideograms and Hangul syllables is now case-insensitive,
as is the case for other character names.
(cherry picked from commit e66f4a5a9c)
Co-authored-by: James <snoopjedi@gmail.com>
This was causing ucd_3_2_0.numeric() to pick up only decimal
changes between Unicode 3.2.0 and the current version.
(cherry picked from commit 3e0322ff16)
Co-authored-by: William Meehan <wmeehan@fb.com>
gh-142518: Define lock-free and per-object lock (GH-144548)
- Add definitions of lock-free and per-object lock to the glossary
- Cross-reference these from list thread safety notes
- Change admonition to rubric
(cherry picked from commit 12dbae4c02)
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
gh-143650: Fix importlib race condition on import failure (GH-143651)
Fix a race condition where a thread could receive a partially-initialized
module when another thread's import fails. The race occurs when:
1. Thread 1 starts importing, adds module to sys.modules
2. Thread 2 sees the module in sys.modules via the fast path
3. Thread 1's import fails, removes module from sys.modules
4. Thread 2 returns a stale module reference not in sys.modules
The fix adds verification after the "skip lock" optimization in both Python
and C code paths to check if the module is still in sys.modules. If the
module was removed (due to import failure), we retry the import so the
caller receives the actual exception from the import failure rather than
a stale module reference.
(cherry picked from commit ac8b5b6890)
Co-authored-by: Gregory P. Smith <68491+gpshead@users.noreply.github.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
gh-144629: Add test for the PyFunction_GetAnnotations() function (GH-144630)
(cherry picked from commit cc81707e40)
Co-authored-by: Nybblista <170842536+nybblista@users.noreply.github.com>
