cpython

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Sam Gross fa3143a1d2 [3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088 )

Add special cases for classmethod and staticmethod descriptors in
_PyObject_GetMethodStackRef() to avoid calling tp_descr_get, which
avoids reference count contention on the bound method and underlying
callable. This improves scaling when calling classmethods and
staticmethods from multiple threads.

Also refactor method_vectorcall in classobject.c into a new
_PyObject_VectorcallPrepend() helper so that it can be used by
PyObject_VectorcallMethod as well.

(cherry picked from commit e0f7c1097e)

2026-03-19 10:49:12 -04:00

clinic

[3.14] gh-139748: fix leaks in AC error paths when using unicode FS-b… (#139789 )

2025-10-08 22:16:21 +05:30

frozen_modules

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_contextvars.c

gh-128384: Use a context variable for warnings.catch_warnings (gh-130010)

2025-04-09 16:18:54 -07:00

_warnings.c

[3.14] gh-139640: Fix swallowing syntax warnings in different modules (GH-139755) (GH-140117)

2025-10-14 15:56:01 +00:00

asdl.c

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asm_trampoline.S

[3.14] gh-136541: Fix several problems of perf trampolines in x86_64 and aarch64 (GH-136500) (#136544 )

2025-07-11 14:06:19 +00:00

assemble.c

gh-87859: Track Code Object Local Kinds For Arguments (gh-132980)

2025-04-29 02:21:47 +00:00

ast_preprocess.c

[3.14] gh-131927: Do not emit PEP 765 warnings in ast.parse() (GH-139642) (GH-140786)

2025-10-30 11:25:34 +00:00

ast_unparse.c

[3.14] gh-132661: Disallow Template/str concatenation after PEP 750 spec update (#135996 ) (#136901 )

2025-07-21 17:34:54 +02:00

ast.c

gh-132661: Implement PEP 750 (#132662 )

2025-04-30 11:46:41 +02:00

bltinmodule.c

[3.14] gh-140517: fix leak in map_next in strict mode (GH-140543) (#140554 )

2025-10-24 22:00:36 +05:30

bootstrap_hash.c

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brc.c

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bytecodes.c

[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088 )

2026-03-19 10:49:12 -04:00

ceval_gil.c

[3.14] GH-133136: Revise QSBR to reduce excess memory held (gh-135473) (#135912 )

2025-07-08 10:58:01 -07:00

ceval_macros.h

[3.14] gh-140104: Set next_instr properly in the JIT during exceptions (GH-140233) (GH-141495)

2025-11-13 18:47:25 +00:00

ceval.c

[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088 )

2026-03-19 10:49:12 -04:00

codecs.c

[3.14] gh-58124: Avoid CP_UTF8 in UnicodeDecodeError (GH-137415) (#137460 )

2025-10-07 19:39:31 +02:00

codegen.c

[3.14] gh-145187: Fix crash on invalid type parameter bound expression in conditional block (GH-145188) (#145196 )

2026-02-24 21:13:08 +00:00

compile.c

[3.14] Fix dunder name typo in compiler code comment (GH-143374) (#143386 )

2026-01-10 12:21:09 +05:30

condvar.h

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config_common.h

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context.c

[3.14] gh-142873: Do not check for PyContextVar_CheckExact twice in PyContextVar_Set (GH-142874) (#142893 )

2025-12-17 18:28:37 +00:00

critical_section.c

[3.14] gh-144513: Skip critical section locking during stop-the-world (gh-144524) (#145570 )

2026-03-06 12:00:17 -05:00

crossinterp_data_lookup.h

[3.14] gh-135443: Sometimes Fall Back to __main__.__dict__ For Globals (gh-135593)

2025-06-16 23:59:30 +00:00

crossinterp_exceptions.h

[3.14] gh-132775: Clean Up Cross-Interpreter Error Handling (gh-135492)

2025-06-14 02:08:25 +00:00

crossinterp.c

[3.14] gh-145376: Fix various reference leaks (GH-145377) (GH-145712)

2026-03-10 16:31:02 +01:00

dtoa.c

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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_syscalls.c

[3.14] gh-124621: Emscripten: Support pyrepl in browser (GH-136931) (GH-136988)

2025-07-22 15:04:11 +02:00

emscripten_trampoline_inner.c

[3.14] gh-128627: Use __builtin_wasm_test_function_pointer_signature for Emscripten trampoline (GH-137470) (#139039 )

2025-09-17 17:21:01 +01:00

emscripten_trampoline.c

[3.14] gh-145037: Fix Emscripten trampoline with emcc >= 4.0.19 (GH-145038) (#145283 )

2026-02-27 08:55:59 +08:00

errors.c

[3.14] gh-143547: Fix PyErr_FormatUnraisable() fallback (#143557 ) (#143603 )

2026-01-09 16:10:50 +01:00

executor_cases.c.h

[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088 )

2026-03-19 10:49:12 -04:00

fileutils.c

gh-124476: Fix decoding from the locale encoding in the C.UTF-8 locale (GH-132477)

2025-04-14 21:32:41 +03:00

flowgraph.c

[3.14] gh-137288: Fix bug where boolean expressions are not associated with the correct exception handler (GH-137310). (#137427 )

2025-08-12 12:56:37 +03:00

formatter_unicode.c

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frame.c

[3.14] gh-144446: Fix some frame object thread-safety issues (gh-144479) (#144546 )

2026-02-06 15:25:36 +00:00

frozen.c

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frozenmain.c

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future.c

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gc_free_threading.c

[3.14] GH-91636: Clear weakrefs created by finalizers. (GH-136401) (#144444 )

2026-03-12 14:10:29 +02:00

gc_gil.c

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gc.c

[3.14] GH-91636: Clear weakrefs created by finalizers. (GH-136401) (#144444 )

2026-03-12 14:10:29 +02:00

generated_cases.c.h

[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088 )

2026-03-19 10:49:12 -04:00

getargs.c

[3.14] Revert "gh-112068: C API: Add support of nullable arguments in PyArg_Parse (GH-121303)" (GH-136991) (#137006 )

2025-07-22 19:16:31 +03:00

getcompiler.c

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getcopyright.c

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getopt.c

GH-133336: Remove reserved `-J` flag for Jython (#133444 )

2025-05-05 15:09:19 +00:00

getplatform.c

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getversion.c

[3.14] gh-119132: Remove "experimental" tag from the CPython free-threading. (gh-135550) (gh-135565)

2025-06-16 14:58:14 +00:00

hamt.c

[3.14] gh-142829: Fix use-after-free in Context.__eq__ via re-entrant ContextVar.set (GH-142905) (#143627 )

2026-01-10 12:21:37 +05:30

hashtable.c

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import.c

[3.14] gh-144601: Avoid sharing exception objects raised in a PyInit function across multiple interpreters (GH-144602) (GH-144633)

2026-02-16 10:37:46 -05:00

importdl.c

[3.14] gh-140011: Delete importdl assertion that prevents importing embedded modules from packages (GH-141605) (#141986 )

2025-11-28 23:30:57 -08:00

index_pool.c

[3.14] gh-91048: Refactor and optimize remote debugging module (#134652 ) (#134673 )

2025-05-25 22:10:20 +00:00

initconfig.c

[3.14] gh-145990: sort --help-env sections by environment variable name (GH-146001)

2026-03-15 22:55:08 +00:00

instruction_sequence.c

GH-124715: Move trashcan mechanism into Py_Dealloc (GH-132280)

2025-04-30 11:37:53 +01:00

instrumentation.c

[3.14] gh-120158: Fix inconsistent monitoring state when setting events too frequently (gh-141845) (gh-141879)

2025-11-23 15:31:56 +00:00

interpconfig.c

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intrinsics.c

Get rid of ERROR_IF's "label" parameter (GH-132654)

2025-04-29 17:21:53 -07:00

jit.c

[3.14] GH-134291: Support older macOS deployment targets for JIT builds (GH-137211) (#137701 )

2025-08-13 13:37:01 +03:00

legacy_tracing.c

[3.14] gh-137400: Fix thread-safety issues when profiling all threads (gh-137518) (gh-137730)

2025-10-07 13:45:23 -04:00

lock.c

[3.14] gh-134009: Expose PyMutex_IsLocked in the public C API (gh-134365) (#136971 )

2025-07-22 12:48:08 +03:00

marshal.c

[3.14] gh-106287: Do not write objects after an unmarshalling error (GH-132715) (GH-143832)

2026-01-14 11:52:20 +00:00

modsupport.c

gh-132909: handle overflow for 'K' format in do_mkvalue (#132911 )

2025-04-25 11:02:57 +00:00

mysnprintf.c

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mystrtoul.c

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object_stack.c

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opcode_targets.h

gh-100239: specialize BINARY_OP/SUBSCR for list-slice (#132626 )

2025-05-01 10:28:52 +00:00

optimizer_analysis.c

[3.14] gh-137728 gh-137762: Fix bugs in the JIT with many local variables (GH-137764) (#137999 )

2025-08-21 17:00:05 +03:00

optimizer_bytecodes.c

[3.14] gh-135608: Add a null check for attribute promotion to fix a JIT crash (GH-135613) (#135739 )

2025-06-20 15:24:25 +08:00

optimizer_cases.c.h

[3.14] gh-135608: Add a null check for attribute promotion to fix a JIT crash (GH-135613) (#135739 )

2025-06-20 15:24:25 +08:00

optimizer_symbols.c

[3.14] gh-137728 gh-137762: Fix bugs in the JIT with many local variables (GH-137764) (#137999 )

2025-08-21 17:00:05 +03:00

optimizer.c

[3.14] gh-137007: Track executor before any possible deallocations (GH-137016) (GH-142541)

2025-12-10 22:54:28 +00:00

parking_lot.c

[3.14] gh-137433: Fix deadlock with stop-the-world and daemon threads (gh-137735) (GH-138965)

2025-10-07 20:46:52 +02:00

pathconfig.c

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perf_jit_trampoline.c

[3.14] gh-144194: Fix mmap failure check in perf_jit_trampoline.c (GH-143713) (#144301 )

2026-01-28 13:57:19 +00:00

perf_trampoline.c

[3.14] gh-144766: Fix a crash in fork child process when perf support is enabled. (GH-144795) (#144816 )

2026-02-14 12:09:00 +00:00

preconfig.c

[3.14] gh-145092: Fix compiler warning for memchr() and wcschr() returning const pointer (GH-145093) (GH-145102)

2026-02-22 08:28:17 +00:00

pyarena.c

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pyctype.c

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pyfpe.c

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pyhash.c

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pylifecycle.c

[3.14] gh-144307: Fix a reference leak during module teardown (GH-144308) (GH-144327)

2026-01-29 19:19:14 +00:00

pymath.c

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pystate.c

[3.14] gh-142183: Cache one datachunk per tstate to prevent alloc/dealloc thrashing (GH-145789) (#145828 )

2026-03-18 16:47:36 +01:00

pystrcmp.c

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pystrhex.c

[3.14] gh-141370: Fix undefined behavior when using Py_ABS() (GH-141548) (GH-142301)

2025-12-12 15:11:43 +00:00

pystrtod.c

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Python-ast.c

[3.14] gh-144169: Fix three crashes in AST objects with non-str kwargs (GH-144178) (#144227 )

2026-01-26 12:14:39 +00:00

Python-tokenize.c

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pythonrun.c

[3.14] gh-145376: Fix various reference leaks (GH-145377) (GH-145712)

2026-03-10 16:31:02 +01:00

pytime.c

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qsbr.c

[3.14] GH-133136: Revise QSBR to reduce excess memory held (gh-135473) (#135912 )

2025-07-08 10:58:01 -07:00

README

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remote_debug.h

[3.14] gh-144316: Fix missing exception in _remote_debugging with debug=False (GH-144442) (#145280 )

2026-02-26 22:39:48 +00:00

remote_debugging.c

[3.14] Fix compiler warnings in remote debugging (#141060 ) (#141067 )

2025-11-05 19:49:39 +00:00

specialize.c

[3.14] gh-139525: Don't specialize functions which have a modified vectorcall (GH-139524) (#139709 )

2025-10-08 09:13:34 -07:00

stackrefs.c

[3.14] gh-133590: ensure that TableEntry.linenumber_borrow is initialized (GH-133681) (#133872 )

2025-05-11 08:44:22 +00:00

stdlib_module_names.h

GH-91048: Minor fixes for `_remotedebugging & rename to _remote_debugging` (#133398 )

2025-05-05 02:30:14 +02:00

structmember.c

gh-132685: fix thread safety of PyMember_GetOne with _Py_T_OBJECT (#132690 )

2025-04-18 21:03:42 +05:30

suggestions.c

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symtable.c

[3.14] gh-145701: Fix __classdict__ & __conditional_annotations__ in class-scope inlined comprehensions (GH-145702) (#145710 )

2026-03-09 20:26:52 +00:00

sysmodule.c

[3.14] gh-145376: Fix various reference leaks (GH-145377) (GH-145712)

2026-03-10 16:31:02 +01:00

thread_nt.h

GH-131296: Add missing UNREACHABLE mark in thread_nt.h (GH-131589)

2025-03-31 20:28:35 +01:00

thread_pthread_stubs.h

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thread_pthread.h

gh-130115: fix thread identifiers for 32-bit musl (#130391 )

2025-04-04 16:31:37 +02:00

thread.c

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tier2_engine.md

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traceback.c

[3.14] gh-145792: Fix incorrect alloca allocation size in traceback.c (GH-145814) (#145909 )

2026-03-13 12:45:18 +00:00

tracemalloc.c

[3.14] gh-144763: Fix race conditions in tracemalloc (#144779 ) (#144965 )

2026-02-18 20:55:38 +01:00

uniqueid.c

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vm-state.md

gh-133079: Remove Py_C_RECURSION_LIMIT & PyThreadState.c_recursion_remaining (GH-133080)

2025-04-29 12:56:20 +02:00

README

Miscellaneous source files for the main Python shared library