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Victor StinnerandPeter Bierma 84b0669f81 gh-157710: Soft deprecate C API modifying str objects (#157711) 
Soft deprecate PyUnicode_New(), PyUnicode_CopyCharacters(),
PyUnicode_Fill(), PyUnicode_Resize(), PyUnicode_WRITE() and
PyUnicode_WriteChar() functions. Use the PyUnicodeWriter API instead.

* Add tests on PyUnicode_New() and PyUnicode_Resize(). Check that the
  result is either a mutable string or the empty string singleton.
* Check that PyUnicode_Fill(), PyUnicode_CopyCharacters() and
  PyUnicode_WriteChar() fail to modify a string with 2 references.

Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
2026-10-05 07:16:37 +00:00
..
_ctypes
gh-157407: Argument Clinic: parse positional-only defining_class methods without _PyArg_Parser (#157483)
2026-09-27 21:31:22 +00:00
_decimal
gh-157475: Add structured version info for decimal (GH-157476)
2026-09-29 13:40:33 +00:00
_hacl
gh-148200: Update Modules/_hacl/ for Cygwin (#149802)
2026-05-15 14:42:30 +02:00
_io
gh-158585: Use PyBytesWriter in io.BufferedReader.readline() (#158615)
2026-10-03 22:15:45 +00:00
_multiprocessing
gh-156261: Move converters used in several files to Argument Clinic (GH-156262)
2026-08-23 19:47:55 +03:00
_remote_debugging
gh-155811: Add a seqcount to gc_stats to prevent torn reads (#155828)
2026-10-05 01:49:56 +00:00
_sqlite
gh-157470: Add structured version info for sqlite3 (GH-157471)
2026-09-29 15:48:39 +03:00
_sre
gh-155496: Use Argument Clinic for more functions and methods (GH-158134)
2026-09-27 19:00:22 +03:00
_ssl
gh-156166: Fix setting and deleting SSLContext._msg_callback (GH-156167)
2026-08-21 10:50:25 +00:00
_testcapi
gh-157710: Soft deprecate C API modifying str objects (#157711)
2026-10-05 07:16:37 +00:00
_testinternalcapi
gh-142349: Simplify lazy import resolution (#158282)
2026-10-01 16:20:45 +00:00
_testlimitedcapi
gh-157710: Soft deprecate C API modifying str objects (#157711)
2026-10-05 07:16:37 +00:00
_xxtestfuzz
Update and expand the 'Fuzz Tests for CPython' README (#148270)
2026-04-09 08:52:30 +01:00
_zstd
gh-113318: Better implementation of @getter and @setter in Argument Clinic (GH-156066)
2026-09-19 18:48:39 +03:00
cjkcodecs
gh-157407: Argument Clinic: parse positional-only defining_class methods without _PyArg_Parser (#157483)
2026-09-27 21:31:22 +00:00
clinic
gh-157407: Argument Clinic: parse positional-only defining_class methods without _PyArg_Parser (#157483)
2026-09-27 21:31:22 +00:00
expat
gh-157953: Update bundled Expat to 2.8.5 (#157957)
2026-09-23 14:46:18 +01:00
_abc.c
gh-153772: Make abc isinstance() tolerate instances without __class__ (#154149)
2026-08-28 20:08:53 -07:00
_asynciomodule.c
gh-113318: Better implementation of @getter and @setter in Argument Clinic (GH-156066)
2026-09-19 18:48:39 +03:00
_bisectmodule.c
gh-150285: Fix too long docstrings in Argument Clinic code (GH-150338)
2026-05-24 16:16:12 +03:00
_bz2module.c
gh-117404: Add structured version info for compression modules (GH-150567)
2026-09-14 10:39:11 +03:00
_codecsmodule.c
gh-157695: Rename HAVE_ICONV to _Py_HAVE_ICONV (#157821)
2026-09-22 07:28:48 +02:00
_collectionsmodule.c
gh-152951 - Fix double DECREF when newblock fails during deque.extend calls (#152961)
2026-07-03 20:43:24 +03:00
_csv.c
gh-155496: Use Argument Clinic for more functions of the _csv module (GH-158133)
2026-09-27 18:58:30 +03:00
_curses_panel.c
gh-156946: Unlink a curses panel before dropping its user pointer (GH-156947)
2026-09-15 07:51:51 +00:00
_cursesmodule.c
gh-157546: Add missing docstrings in curses (GH-157547)
2026-09-21 14:49:28 +03:00
_datetimemodule.c
gh-99772: Fix datetime.time comparison and hashing for sub-minute UTC offsets (#155024)
2026-09-07 20:19:20 +01:00
_dbmmodule.c
gh-157480: Add structured version info for dbm.ndbm (GH-157484)
2026-09-29 13:20:28 +00:00
_elementtree.c
gh-155496: Use Argument Clinic for more functions and methods (GH-158134)
2026-09-27 19:00:22 +03:00
_functoolsmodule.c
gh-155496: Use Argument Clinic for more functions and methods (GH-158134)
2026-09-27 19:00:22 +03:00
_gdbmmodule.c
gh-157478: Add structured version info for dbm.gnu (GH-157479)
2026-09-29 15:43:01 +03:00
_hashopenssl.c
gh-156228: Use PyMem_Raw allocators for OpenSSL in _ssl and _hashlib (#156229)
2026-09-02 18:26:17 +05:30
_heapqmodule.c
gh-150285: Fix too long docstrings in Argument Clinic code (GH-150338)
2026-05-24 16:16:12 +03:00
_interpchannelsmodule.c
gh-153444: Fix compile warning in Modules/_interpchannelsmodule.c (#153445)
2026-07-09 19:08:29 +03:00
_interpqueuesmodule.c
gh-151763: Fix crash in _interpqueues.create on MemoryError (#152131)
2026-06-25 07:04:02 +00:00
_interpreters_common.h
gh-132775: Use _PyObject_GetXIData (With Fallback) (gh-134440)
2025-05-22 06:50:06 -06:00
_interpretersmodule.c
gh-155496: Use Argument Clinic for more functions and methods (GH-158134)
2026-09-27 19:00:22 +03:00
_json.c
gh-152052: Fix misleading json error for \uXXXX escape at the end of input (#152053)
2026-06-26 14:47:22 +01:00
_localemodule.c
gh-155952: Fix <unrepresentable> Argument Clinic defaults in several signatures (#155954)
2026-08-21 10:03:51 +01:00
_lsprof.c
gh-157639: Fix use-after-free when an external timer re-enters the profiler (#157648)
2026-09-24 17:01:34 +01:00
_lzmamodule.c
gh-117404: Add structured version info for compression modules (GH-150567)
2026-09-14 10:39:11 +03:00
_math.h
gh-122681: remove m_atan2()/c_atan2() helpers (#122715)
2024-08-17 13:48:16 +05:30
_opcode.c
gh-150285: Fix too long docstrings in Argument Clinic code (GH-150338)
2026-05-24 16:16:12 +03:00
_openssl_mem.h
gh-156228: Use PyMem_Raw allocators for OpenSSL in _ssl and _hashlib (#156229)
2026-09-02 18:26:17 +05:30
_operator.c
gh-156762: Fix tp_clear slot signature for operator.methodcaller() (#156769)
2026-09-13 18:57:17 +00:00
_pickle.c
gh-142217: Add tests on the deprecated _Py_Identifier C API (#157638)
2026-09-17 13:45:31 +02:00
_posixsubprocess.c
gh-157495: Avoid Py_MIN()/Py_MAX() side effects (#157591)
2026-09-16 18:44:55 +02:00
_queuemodule.c
gh-150319: Replace all documentation which says "See PEP 585" (#150325)
2026-06-02 21:13:34 +01:00
_randommodule.c
gh-149816: Fix a RC in _random.Random.__init__ method (#149824)
2026-05-18 18:39:54 +03:00
_scproxy.c
gh-116322: Add Py_mod_gil module slot (#116882)
2024-05-03 11:30:55 -04:00
_ssl_data_36.h
gh-156369: Update OpenSSL error ID data (GH-156380)
2026-08-25 18:44:48 -05:00
_ssl_data_40.h
gh-156369: Update OpenSSL error ID data (GH-156380)
2026-08-25 18:44:48 -05:00
_ssl_data_111.h
gh-131423: Update OpenSSL data to 3.4.1 on Linux (#131618)
2025-04-25 10:26:58 +02:00
_ssl_data_300.h
gh-156369: Update OpenSSL error ID data (GH-156380)
2026-08-25 18:44:48 -05:00
_ssl_data_340.h
gh-131423: Update OpenSSL data to 3.4.1 on Linux (#131618)
2025-04-25 10:26:58 +02:00
_ssl.c
gh-156293: Use-after-free for server-side SSLContext with sni_callback (#158504)
2026-09-30 15:48:00 +00:00
_ssl.h
GH-103092: isolate _ssl (#104725)
2023-05-22 06:14:48 +05:30
_stat.c
gh-108765: fix comment about macro definitions in _stat.c post GH-108854 (#136027)
2025-06-27 15:15:11 +00:00
_statisticsmodule.c
gh-116322: Add Py_mod_gil module slot (#116882)
2024-05-03 11:30:55 -04:00
_struct.c
gh-158585: Simplify PyBytesWriter_Finish() (#158822)
2026-10-05 04:47:04 +02:00
_suggestions.c
gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770)
2026-03-24 17:47:55 +00:00
_sysconfig.c
gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770)
2026-03-24 17:47:55 +00:00
_testbuffer.c
gh-146151: memoryview supports 'F' and 'D' format types (complex) (#146241)
2026-03-26 15:26:34 +01:00
_testcapi_feature_macros.inc
gh-91325: Skip Stable ABI checks with Py_TRACE_REFS special build (GH-92046)
2024-01-29 16:45:31 +01:00
_testcapimodule.c
gh-157833: Fix specialized C calls with additional method flags (GH-157834)
2026-09-30 14:37:24 +01:00
_testclinic_limited.c
gh-116322: Rename PyModule_ExperimentalSetGIL to PyUnstable_Module_SetGIL (GH-118645)
2024-05-06 18:59:36 +02:00
_testclinic.c
gh-108271, gh-108270: Argument Clinic: parameter aliases and deprecation (GH-155248)
2026-09-13 20:24:02 +03:00
_testimportmultiple.c
gh-116322: Add Py_mod_gil module slot (#116882)
2024-05-03 11:30:55 -04:00
_testinternalcapi.c
Run a job that the test suite with MSan to the CI (#158625)
2026-10-05 02:11:42 +01:00
_testlimitedcapi.c
gh-158445: Add C API tests on build information functions (#158603)
2026-10-02 14:43:44 +00:00
_testmultiphase.c
gh-150285: Fix too long docstrings in Argument Clinic code (GH-150338)
2026-05-24 16:16:12 +03:00
_testsinglephase.c
gh-145921: Add "_DuringGC" functions for tp_traverse (GH-145925)
2026-04-08 09:15:11 +02:00
_threadmodule.c
gh-155496: Use Argument Clinic for more functions of the _thread module (GH-155514)
2026-09-24 18:17:25 +00:00
_tkinter.c
gh-157514: Add structured version info for tkinter (GH-157516)
2026-09-29 15:55:12 +03:00
_tracemalloc.c
gh-150285: Fix too long docstrings in Argument Clinic code (GH-150338)
2026-05-24 16:16:12 +03:00
_typesmodule.c
gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770)
2026-03-24 17:47:55 +00:00
_typingmodule.c
gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770)
2026-03-24 17:47:55 +00:00
_uuidmodule.c
gh-152433: Windows: `_uuid` module: improve UWP compatibility (#152793)
2026-07-19 15:19:40 +02:00
_weakref.c
gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770)
2026-03-24 17:47:55 +00:00
_winapi.c
gh-152433: Windows: `_winapi` module: improve UWP compatibility (#152962)
2026-09-11 12:18:43 +02:00
_zoneinfo.c
gh-155496: Use Argument Clinic for more functions and methods (GH-158134)
2026-09-27 19:00:22 +03:00
addrinfo.h
gh-114917: add support for AI_NUMERICSERV in getaddrinfo emulation (#114918)
2025-03-18 11:26:51 +01:00
arraymodule.c
gh-142083: Document the 'w' type code in the array.array docstring (#158040)
2026-10-01 18:36:43 +00:00
atexitmodule.c
gh-155496: Use Argument Clinic for more functions and methods (GH-158134)
2026-09-27 19:00:22 +03:00
binascii.c
gh-134837: Correct and improve base85 documentation for base64 and binascii modules (GH-145843)
2026-05-12 22:46:46 +03:00
blake2module.c
gh-155835: fix digest_size data race on BLAKE-2 objects (#155839)
2026-09-06 18:49:09 +02:00
cmathmodule.c
gh-155526: Don't check errno in abs(complex) (#155527)
2026-09-11 17:46:59 +02:00
config.c.in
gh-128384: Use a context variable for warnings.catch_warnings (gh-130010)
2025-04-09 16:18:54 -07:00
errnomodule.c
gh-126585: Add EHWPOISON error code (#126586)
2024-12-03 12:45:50 +00:00
faulthandler.c
gh-152433 Allow faulthandler.c to build for Windows UWP (GH-152688)
2026-07-01 19:50:07 +01:00
fcntlmodule.c
gh-156939: Detect buffer overflow in PyBytesWriter in debug mode (#156943)
2026-09-13 00:28:39 +00:00
gc_weakref.txt
GH-135552: Make the GC clear weakrefs later (GH-136189)
2025-08-07 16:32:17 -07:00
gcmodule.c
gh-157377: Don't flush the thread-local allocation count in gc.get_count (#157381)
2026-09-14 10:56:53 -06:00
getaddrinfo.c
gh-114917: Fix typo in getaddrinfo emulation (#131413)
2025-03-18 14:31:13 +01:00
getbuildinfo.c
gh-158445: Add C API tests on build information functions (#158603)
2026-10-02 14:43:44 +00:00
getnameinfo.c
Replace K&R function declarations with ANSI declarations (#114818)
2025-03-11 13:06:36 +01:00
getpath_noop.c
gh-157142: Fix linking _freeze_module with built-in test modules (GH-157143)
2026-09-07 18:32:36 -07:00
getpath.c
gh-155496: Use Argument Clinic for the getpath module (GH-158132)
2026-09-27 18:56:45 +03:00
getpath.py
gh-155254: Avoid warning about missing stdlib when using _pth files (GH-156015)
2026-08-21 14:36:36 +01:00
grpmodule.c
gh-156261: Use the uid_t and gid_t converters in the pwd and grp modules (GH-156294)
2026-09-27 19:08:10 +03:00
hashlib.h
gh-131876: Revert "gh-131876: extract _hashlib helpers into a separate directory (#136995) (#137307)
2025-08-01 10:45:40 -07:00
hmacmodule.c
gh-155843: properly initialize HMAC objects to prevent crashes after allocation failures (#155845)
2026-09-06 16:30:57 +02:00
itertoolsmodule.c
gh-153908: Fix data race in itertools.count.__repr__ (GH-153917)
2026-07-18 09:01:51 -04:00
ld_so_aix.in
…
main.c
gh-158445: Allocate memory in the heap in Py_GetVersion() (#158608)
2026-10-03 15:15:08 +02:00
makesetup
GH-138800: Fix variable substitution in python3.pc for Android (#144776)
2026-08-03 14:52:26 +08:00
makexp_aix
bpo-42087: Remove support for AIX 5.3 and below (GH-22830)
2020-11-16 16:16:10 +01:00
mathintegermodule.c
Fix a stale link to the math.integer.isqrt() correctness proof (#154685)
2026-07-25 16:42:44 +02:00
mathmodule.c
gh-157695: Rename HAVE_ACOSPI to _Py_HAVE_ACOSPI (#157858)
2026-09-22 06:00:28 +00:00
md5module.c
gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770)
2026-03-24 17:47:55 +00:00
mmapmodule.c
gh-157335: Fix out-of-bounds write in mmap.mmap.__setitem__ (#157438)
2026-09-23 22:06:25 +02:00
overlapped.c
gh-152433: Windows: allow build `overlapped.c` for UWP (#153036)
2026-09-11 15:35:18 +02:00
posixmodule.c
Run a job that the test suite with MSan to the CI (#158625)
2026-10-05 02:11:42 +01:00
posixmodule.h
gh-85283: Convert grp extension to the limited C API (#116611)
2024-03-12 00:46:53 +00:00
pwdmodule.c
gh-156261: Use the uid_t and gid_t converters in the pwd and grp modules (GH-156294)
2026-09-27 19:08:10 +03:00
pyexpat.c
gh-157473: Add structured version info for pyexpat (GH-157474)
2026-09-29 15:54:09 +03:00
readline.c
gh-157485: Add structured version info for readline (GH-157486)
2026-09-29 15:46:51 +03:00
README
…
resource.c
gh-156261: Move converters used in several files to Argument Clinic (GH-156262)
2026-08-23 19:47:55 +03:00
rotatingtree.c
gh-116181: Remove Py_BUILD_CORE_BUILTIN and Py_BUILD_CORE_MODULE in rotatingtree.c (#121260)
2024-07-03 13:05:05 +05:30
rotatingtree.h
…
selectmodule.c
gh-154836: Fix Popen.wait() with very large timeouts on the pidfd/kqueue wait paths (GH-154837)
2026-07-29 10:45:41 -07:00
Setup
gh-140550: Update xxlimited with 3.15 limited API (GH-142827)
2026-05-13 18:35:50 +02:00
Setup.bootstrap.in
gh-136421: Load _datetime static types during interpreter initialization (GH-136583)
2025-07-21 13:47:26 -04:00
Setup.stdlib.in
gh-158445: Add C API tests on build information functions (#158603)
2026-10-02 14:43:44 +00:00
sha1module.c
gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770)
2026-03-24 17:47:55 +00:00
sha2module.c
gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770)
2026-03-24 17:47:55 +00:00
sha3module.c
gh-155835: fix digest_size and block_size data races on SHA-3 objects (#155838)
2026-09-06 16:47:11 +02:00
signalmodule.c
gh-153400: Use glibc functions instead of syscall() (#155518)
2026-08-13 12:44:45 +02:00
socketmodule.c
Run a job that the test suite with MSan to the CI (#158625)
2026-10-05 02:11:42 +01:00
socketmodule.h
gh-86819: Add ISO-TP CAN socket constants (#23794)
2025-09-17 17:18:04 +00:00
symtablemodule.c
gh-124697: Represent inlined comprehensions as subscopes in the symbol table (#156819)
2026-09-23 20:31:57 +01:00
syslogmodule.c
gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770)
2026-03-24 17:47:55 +00:00
termios.c
gh-150285: Fix too long docstrings in Argument Clinic code (GH-150338)
2026-05-24 16:16:12 +03:00
timemodule.c
gh-155496: Use Argument Clinic for more functions in the time module (GH-155513)
2026-09-21 12:44:36 +03:00
tkappinit.c
gh-150836: Mount embedded Tk ZIP in _tkinter on Windows (GH-151562)
2026-06-19 14:23:01 +00:00
tkinter.h
gh-150836: Mount embedded Tk ZIP in _tkinter on Windows (GH-151562)
2026-06-19 14:23:01 +00:00
unicodedata_db.h
fixes gh-157633: Update Unicode data to Unicode 18.0.0 (#157634)
2026-09-16 11:34:53 -07:00
unicodedata.c
fixes gh-157633: Update Unicode data to Unicode 18.0.0 (#157634)
2026-09-16 11:34:53 -07:00
unicodename_db.h
fixes gh-157633: Update Unicode data to Unicode 18.0.0 (#157634)
2026-09-16 11:34:53 -07:00
winreparse.h
bpo-31512: Add non-elevated symlink support for Windows (GH-3652)
2019-04-09 11:19:46 -07:00
xxlimited_3_13.c
gh-140550: Update xxlimited with 3.15 limited API (GH-142827)
2026-05-13 18:35:50 +02:00
xxlimited_35.c
gh-140550: Update xxlimited with 3.15 limited API (GH-142827)
2026-05-13 18:35:50 +02:00
xxlimited.c
gh-140550: Update xxlimited with 3.15 limited API (GH-142827)
2026-05-13 18:35:50 +02:00
xxmodule.c
gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770)
2026-03-24 17:47:55 +00:00
xxsubtype.c
gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770)
2026-03-24 17:47:55 +00:00
zlibmodule.c
gh-158169: Clear zlib.Decompress.unconsumed_tail at end of stream (#158177)
2026-09-26 11:48:13 +01:00

README 

Source files for standard library extension modules,
and former extension modules that are now builtin modules.
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