cpython

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History

[3.13] gh-131988: Fix a multithreaded scaling regression (#131989 )

gh-131988: Fix a multithreaded scaling regression

The 3.13 free threaded build immortalizes certain objects to avoid
reference count contention. In gh-127114 the condition was
unintentionally changed to happen when the first thread was created
instead of the first non-main thread. The `interp->gc.immortalize` field
is then cleared again during `_PyGC_Init()`.

Change the condition so that we check if we should immortalize objects
using deferred reference counting whenever a non-main thread is created.

2025-04-07 20:13:02 +02:00

clinic

[3.13] gh-113993: Allow interned strings to be mortal, and fix related issues (GH-120520) (GH-120945)

2024-06-24 20:24:19 +02:00

frozen_modules

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_warnings.c

[3.13] gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) (GH-130556)

2025-02-25 22:50:26 +00:00

adaptive.md

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asdl.c

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asm_trampoline.S

[3.13] gh-120400 ：Support Linux perf profile to see Python calls on RISC-V architecture (GH-120089) (#120413 )

2024-06-14 17:03:24 +02:00

assemble.c

[3.13] gh-128632: fix segfault on nested __classdict__ type param (GH-128744) (#132085 )

2025-04-04 08:23:40 -07:00

ast_opt.c

[3.13] gh-123344: Add missing ast optimizations for PEP 696 (GH-123377) (#123427 )

2024-08-28 14:02:34 +00:00

ast_unparse.c

[3.13] gh-125268: Use static string for "1e309" in AST (GH-125272) (GH-125280)

2024-10-24 13:59:23 -04:00

ast.c

gh-116126: Implement PEP 696 (#116129 )

2024-05-03 06:17:32 -07:00

bltinmodule.c

[3.13] gh-131670: Fix crash in anext() when __anext__ is sync and raises (GH-131682) (#131686 )

2025-03-24 19:27:01 +00:00

bootstrap_hash.c

…

brc.c

gh-110481: Fix biased reference counting queue initialization. (#117271 )

2024-03-28 09:28:39 -04:00

bytecodes.c

[3.13] gh-132011: Fix crash on invalid CALL_LIST_APPEND deoptimization (GH-132018) (#132161 )

2025-04-06 17:08:48 +00:00

ceval_gil.c

[3.13] gh-122201: Lock mutex when setting handling_thread to NULL (GH-122204) (#122319 )

2024-07-26 17:30:08 +00:00

ceval_macros.h

[3.13] gh-117657: Avoid race in PAUSE_ADAPTIVE_COUNTER in free-threaded build (GH-122190) (#122475 )

2024-07-30 18:18:25 +00:00

ceval.c

[3.13] gh-130382: add missing _PyReftracerTrack to ceval Py_DECREF (GH-130689) (#131195 )

2025-03-14 09:52:05 -04:00

codecs.c

[3.13] gh-113993: Allow interned strings to be mortal, and fix related issues (GH-120520) (GH-120945)

2024-06-24 20:24:19 +02:00

compile.c

[3.13] Postpone <stdbool.h> inclusion after Python.h (#130641 ) (#130675 )

2025-02-28 09:40:06 +00:00

condvar.h

gh-104530: Enable native Win32 condition variables by default (GH-104531)

2024-02-02 13:50:51 +00:00

config_common.h

gh-76785: Add PyInterpreterConfig Helpers (gh-117170)

2024-04-02 20:35:52 +00:00

context.c

[3.13] gh-132002: Fix crash of ContextVar on unhashable str subtype (GH-132003) (#132007 )

2025-04-02 12:15:44 +00:00

critical_section.c

[3.13] gh-119344: Make critical section API public (GH-119353) (#120856 )

2024-06-21 20:20:41 +00:00

crossinterp_data_lookup.h

gh-76785: Improved Subinterpreters Compatibility with 3.12 (gh-115424)

2024-02-13 14:56:49 -07:00

crossinterp_exceptions.h

[3.13] gh-117398: Use Per-Interpreter State for the _datetime Static Types (gh-120009)

2024-06-03 23:37:28 +00:00

crossinterp.c

[3.13] gh-127165: Disallow embedded NULL characters in _interpreters (GH-127199) (#127463 )

2024-12-01 06:55:55 +00:00

dtoa.c

gh-91565: Replace bugs.python.org links with Devguide/GitHub ones (GH-91568)

2024-04-01 13:02:07 +00:00

dup2.c

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dynamic_annotations.c

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dynload_hpux.c

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dynload_shlib.c

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dynload_stub.c

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dynload_win.c

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emscripten_signal.c

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emscripten_trampoline.c

[3.13] gh-121698 Emscripten: Use updated WebAssembly type reflection proposal (GH-121699) (GH-121745)

2024-07-14 12:01:03 +02:00

errors.c

[3.13] gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) (GH-130556)

2025-02-25 22:50:26 +00:00

executor_cases.c.h

[3.13] GH-123545: Remove duplicate Py_DECREF when handling _PyOptimizer_Optimize errors (GH-123759)

2024-09-06 09:02:32 -07:00

fileutils.c

gh-126780: Fix ntpath.normpath() for drive-relative paths (GH-126801)

2024-11-21 15:10:12 +00:00

flowgraph.c

[3.13] gh-130740: Move some stdbool.h includes after Python.h (#130738 ) (#130756 )

2025-03-03 13:09:59 +01:00

formatter_unicode.c

…

frame.c

gh-118272: set stacktop to 0 before freeing contents, to avoid access to invalid objects during GC (#118478 )

2024-05-01 21:51:40 +01:00

frozen.c

gh-108716: Cleanup remaining deepfreeze infrastructure (#116919 )

2024-03-18 11:13:11 -07:00

frozenmain.c

gh-105716: Fix _PyInterpreterState_IsRunningMain() For Embedders (gh-117140)

2024-03-21 18:20:20 -06:00

future.c

[3.13] gh-126139: Improve error message location for future statement with unknown feature (GH-126140) (#126155 )

2024-10-30 00:36:06 +00:00

gc_free_threading.c

[3.13] gh-129533: Update PyGC_Enable/Disable/IsEnabled to use atomic operat… (gh-129756)

2025-02-06 23:11:17 +00:00

gc_gil.c

gh-111968: Rename freelist related struct names to Eric's suggestion (gh-115329)

2024-02-14 00:32:51 +00:00

gc.c

[3.13] gh-131740: Update PyUnstable_GC_VisitObjects to traverse perm … (gh-131754)

2025-03-27 02:43:16 +09:00

generated_cases.c.h

[3.13] gh-132011: Fix crash on invalid CALL_LIST_APPEND deoptimization (GH-132018) (#132161 )

2025-04-06 17:08:48 +00:00

getargs.c

[3.13] gh-118814: Fix the TypeVar constructor when name is passed by keyword (GH-122664) (GH-122806)

2024-08-08 09:49:21 +03:00

getcompiler.c

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getcopyright.c

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getopt.c

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getplatform.c

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getversion.c

[3.13] gh-119132: Update sys.version to identify free-threaded or not. (gh-119134) (#119153 )

2024-05-18 16:49:11 -04:00

hamt.c

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hashtable.c

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import.c

[3.13] gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) (GH-130556)

2025-02-25 22:50:26 +00:00

importdl.c

[3.13] gh-122907: Fix Builds Without HAVE_DYNAMIC_LOADING Set (gh-122952) (#122984 )

2024-12-03 16:46:30 +00:00

initconfig.c

[3.13] gh-131818: Add imply -P in -I's help message (GH-131819) (#131822 )

2025-03-28 08:13:00 +00:00

instruction_sequence.c

[3.13] gh-130740: Move some stdbool.h includes after Python.h (#130738 ) (#130756 )

2025-03-03 13:09:59 +01:00

instrumentation.c

[3.13] gh-131141: fix data race in instrumentation while registering callback (#131166 )

2025-03-13 09:41:26 +00:00

interpconfig.c

gh-76785: Fix a Refleak in _interpreters.new_config() (gh-117491)

2024-04-03 01:10:26 +00:00

intrinsics.c

[3.13] gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) (GH-130556)

2025-02-25 22:50:26 +00:00

jit.c

[3.13] GH-118844: Fix build failures when combining --disable-gil with --enable-experimental-jit (GH-118959)

2024-05-13 04:53:30 +00:00

legacy_tracing.c

[3.13] gh-117657: Fix TSAN data race in _PyEval_SetTrace assertion (gh-131561) (#131564 )

2025-03-21 18:48:40 +00:00

lock.c

[3.13] gh-131082: Add missing guards for WIN32_LEAN_AND_MEAN (GH-131044) (#131084 )

2025-03-11 11:56:54 +00:00

marshal.c

[3.13] gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) (GH-122012)

2024-07-19 09:13:08 +00:00

modsupport.c

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mysnprintf.c

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mystrtoul.c

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object_stack.c

gh-111968: Split _Py_dictkeys_freelist out of _Py_dict_freelist (gh-115505)

2024-02-16 01:01:36 +00:00

opcode_targets.h

GH-118095: Use broader specializations of CALL in tier 1, for better tier 2 support of calls. (GH-118322)

2024-05-04 12:11:11 +01:00

optimizer_analysis.c

[3.13] gh-120642: Move private PyCode APIs to the internal C API (#120643 ) (#121043 )

2024-06-26 15:35:19 +02:00

optimizer_bytecodes.c

[3.13] gh-119258: Backport optimizer frame fixes in GH-119365 (GH-120699)

2024-06-20 23:55:20 +08:00

optimizer_cases.c.h

[3.13] gh-119258: Backport optimizer frame fixes in GH-119365 (GH-120699)

2024-06-20 23:55:20 +08:00

optimizer_symbols.c

[3.13] gh-120642: Move private PyCode APIs to the internal C API (#120643 ) (#121043 )

2024-06-26 15:35:19 +02:00

optimizer.c

[3.13] gh-120642: Move private PyCode APIs to the internal C API (#120643 ) (#121043 )

2024-06-26 15:35:19 +02:00

parking_lot.c

[3.13] gh-112804: Clamping timeout value for _PySemaphore_PlatformWait (gh-124914) (gh-124991)

2024-10-07 16:53:32 +00:00

pathconfig.c

gh-117987: Restore several functions removed in Python 3.13 alpha 1 (GH-117993)

2024-04-18 15:20:38 +02:00

perf_jit_trampoline.c

[3.13] GH-118844: Fix build failures when combining --disable-gil with --enable-experimental-jit (GH-118959)

2024-05-13 04:53:30 +00:00

perf_trampoline.c

gh-118518: Allow perf to work without frame pointers (#112254 )

2024-05-05 03:07:29 +02:00

preconfig.c

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pyarena.c

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pyctype.c

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pyfpe.c

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pyhash.c

[3.13] gh-111389: Add PyHASH_MULTIPLIER constant (GH-119214) (#119334 )

2024-06-04 09:26:25 +02:00

pylifecycle.c

[3.13] gh-130940: Remove PyConfig.use_system_logger (#131129 )

2025-03-13 11:53:11 +08:00

pymath.c

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pystate.c

[3.13] gh-131988: Fix a multithreaded scaling regression (#131989 )

2025-04-07 20:13:02 +02:00

pystrcmp.c

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pystrhex.c

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pystrtod.c

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Python-ast.c

[3.13] gh-126105: Fix crash in ast module, when ._fields is deleted (GH-126115) (#126130 )

2024-10-29 16:07:32 +00:00

Python-tokenize.c

[3.13] gh-120317: Lock around global state in the tokenize module (GH-120318) (#121841 )

2024-07-16 10:03:47 +00:00

pythonrun.c

[3.13] gh-117174: Add a new route in linecache to fetch interactive source code (GH-117500) (#131060 )

2025-03-10 23:11:24 +00:00

pytime.c

gh-110850: Remove _PyTime_TimeUnchecked() function (#118552 )

2024-05-05 12:15:19 +02:00

qsbr.c

[3.13] gh-130794: Process interpreter QSBR queue in _PyMem_AbandonDelayed. (gh-130808) (#130857 )

2025-03-04 23:35:22 +00:00

README

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specialize.c

[3.13] gh-125610: Fix STORE_ATTR_INSTANCE_VALUE specialization check (GH-125612) (GH-127698)

2024-12-06 16:14:26 +00:00

stdlib_module_names.h

[3.13] gh-126925: Modify how iOS test results are gathered (GH-127592) (#127754 )

2024-12-09 14:39:11 +08:00

structmember.c

[3.13] gh-117657: Fix __slots__ thread safety in free-threaded build (GH-119368) (#120655 )

2024-06-17 19:12:25 +00:00

suggestions.c

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symtable.c

[3.13] gh-128632: fix segfault on nested __classdict__ type param (GH-128744) (#132085 )

2025-04-04 08:23:40 -07:00

sysmodule.c

[3.13] gh-131082: Add missing guards for WIN32_LEAN_AND_MEAN (GH-131044) (#131084 )

2025-03-11 11:56:54 +00:00

thread_nt.h

gh-110850: Use _PyDeadline_Get() in EnterNonRecursiveMutex() (#118556 )

2024-05-04 09:39:58 +02:00

thread_pthread_stubs.h

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thread_pthread.h

[3.13] gh-130115: fix thread identifiers for 32-bit musl (GH-130391) (GH-132089)

2025-04-04 22:57:35 +02:00

thread.c

gh-110850: Cleanup PyTime API: PyTime_t are nanoseconds (#115753 )

2024-02-21 11:46:00 +01:00

tier2_engine.md

Docs: fix spelling of the word 'transferring' (#116641 )

2024-03-13 23:53:32 +01:00

traceback.c

[3.13] gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) (GH-130556)

2025-02-25 22:50:26 +00:00

tracemalloc.c

[3.13] gh-128679: Clear the ref tracer in _PyTraceMalloc_Stop() (#129258 )

2025-01-24 14:54:02 +01:00

vm-state.md

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README

Miscellaneous source files for the main Python shared library