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>
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)
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-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>
gh-144652: Support Windows exit status in support get_signal_name() (GH-144653)
Format Windows exit status as hexadecimal.
(cherry picked from commit b121dc4347)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-134179: Use sys._clear_internal_caches() at test_cmd_line (GH-134180)
Use sys._clear_internal_caches() instead of deprecated sys._clear_type_cache() at test_cmd_line.
(cherry picked from commit dd2da42ea4)
Co-authored-by: alexey semenyuk <alexsemenyuk88@gmail.com>
Fix thread-safety issues when accessing frame attributes while another
thread is executing the frame:
- Add critical section to frame_repr() to prevent races when accessing
the frame's code object and line number
- Add _Py_NO_SANITIZE_THREAD to PyUnstable_InterpreterFrame_GetLasti()
to allow intentional racy reads of instr_ptr.
- Fix take_ownership() to not write to the original frame's f_executable
(cherry picked from commit 5bb3bbb9c6)
Co-authored-by: Sam Gross <colesbury@gmail.com>
gh-144330: Initialize classmethod and staticmethod in new
Initialize cm_callable and sm_callable to None in classmethod and
staticmethod constructor.
Co-authored-by: Aniket Singh Yadav <singhyadavaniket43@gmail.com>
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
gh-142555: Fix null pointer dereference in array.__setitem__ via re-entrant __index__ (GH-142713)
(cherry picked from commit 39f16a93ef)
Co-authored-by: AN Long <aisk@users.noreply.github.com>
Run a long living subprocess which handles multiple requests instead of
running a new subprocess for each request.
(cherry picked from commit 29acc08c8d)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Modifies handling of `.gz` files in Android app payloads, and ensures that
when the Android testbed streams logs, stream flushes aren't treated as
newlines. This improves the output of test suites that use "one dot per test"
progress indicators.
(cherry picked from commit cb1dc91dcb)
Co-authored-by: Malcolm Smith <smith@chaquo.com>
gh-144348: annotationlib: fix test that relies on set ordering (GH-144359)
(cherry picked from commit b6256014be)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
In `_Py_dict_lookup_threadsafe_stackref`, call `ensure_shared_on_read()` to
prevent a race between the lookup and concurrent dict resizes, which may free
the PyDictKeysObject (i.e., it ensures that the resize uses QSBR).
(cherry picked from commit e666a01ef4)
gh-126014: test_makefile_test_folders: Ignore basically-empty directories (GH-140466)
The code in test_makefile was attempting to ignore any
non-interesting files, but missed some corners:
1. There is never a *file* called `__pycache__`.
2. A directory containing only a `__pycache__` subdirectory should be
ignored.
3. A directory containing only hidden files should be ignored.
Simplify this all into a couple of filters that let us check for empty
lists.
(cherry picked from commit 17d447e993)
Co-authored-by: Stefano Rivera <stefano@rivera.za.net>
gh-144100: Fix crash for POINTER(str) used in ctypes argtypes (GH-144108)
(cherry picked from commit 8f459255eb)
Co-authored-by: VanshAgarwal24036 <148854295+VanshAgarwal24036@users.noreply.github.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-144169: Fix three crashes in AST objects with non-str kwargs (GH-144178)
(cherry picked from commit 639c1ad4f1)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
It does not support an ASCII string.
Also add more tests.
(cherry picked from commit 25a10b60b0)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
[3.14] gh-144023: Prevent follow_symlinks from being allowed with an fd of 0 (GH-144022)
The check was (fd > 0), should be (fd >= 0).
(cherry picked from commit fa44efa0ef)
Co-authored-by: AZero13 <gfunni234@gmail.com>
gh-143874: Use self.message instead of raw print in `_exec_in_closure()` (GH-143875)
(cherry picked from commit e66597d6c8)
Co-authored-by: Yongtao Huang <yongtaoh2022@gmail.com>
gh-143774 - Improve IDLE Format Paragraph doc (GH-143775)
Add a reminder to not rewrap code line to the Menu => Format => Reformat Paragraph entry.
In Editing and Nagivagion, add a new 'Format block' subsection that defines 'paragraph'
to better match what is dependably handled as more or less expected.
In particular, specify equal indents and that the resulting indent equals original indent.
Also mention that selections are expanded to complete lines and how to modify max length.
(Also fix a couple case errors in cross references.)
(cherry picked from commit fa3abf5a51)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Use more relevant terminology instead of "master"/"slave" widgets where possible.
(cherry picked from commit 813fc7a291)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
gh-143916: Reject control characters in wsgiref.headers.Headers (GH-143917)
* Add 'test.support' fixture for C0 control characters
* gh-143916: Reject control characters in wsgiref.headers.Headers
(cherry picked from commit f7fceed79c)
Co-authored-by: Seth Michael Larson <seth@python.org>
