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Miss Islington (bot)andBrittany Reynoso f8375c23b9 [3.15] gh-158820: Add null checks to avoid segfaults with lazy imports at shutdown (GH-158821) (#159062 )

gh-158820: Add null checks to avoid segfaults with lazy imports at shutdown (GH-158821)

Destructors can run after finalization has cleared the interpreter's
lazy_modules set and lazy_pending_submodules dict. Declaring or
resolving a lazy import from one of them passed NULL to PySet_Add(),
PySet_Discard() or the pending-submodules lookup.

Treat the bookkeeping as a no-op once the state is gone, as the other
readers of this state already do.
(cherry picked from commit a6e636148e)

Co-authored-by: Brittany Reynoso <breynoso@meta.com>

2026-10-09 12:14:23 -07:00

clinic

[3.15] gh-142349: Simplify lazy import resolution (GH-158282) (#158569 )

2026-10-01 16:56:39 +00:00

frozen_modules

gh-97669: Create Tools/build/ directory (#97963 )

2022-10-17 12:01:00 +02:00

_contextvars.c

gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770 )

2026-03-24 17:47:55 +00:00

_warnings.c

[3.15] gh-155952: Fix <unrepresentable> Argument Clinic defaults in several signatures (GH-155954) (#156165 )

2026-08-29 10:08:27 +03:00

asdl.c

bpo-43244: Remove ast.h, asdl.h, Python-ast.h headers (GH-24933)

2021-03-23 20:47:40 +01:00

asm_trampoline_aarch64.h

[3.15] gh-139808: Add branch protections for aarch64 in asm_trampoline.S (GH-130864) (#149730 )

2026-05-12 22:10:24 +02:00

asm_trampoline.S

[3.15] gh-139808: Add branch protections for aarch64 in asm_trampoline.S (GH-130864) (#149730 )

2026-05-12 22:10:24 +02:00

assemble.c

[3.15] gh-151112: Fix double free in assemble_init when out of memory (GH-151142) (#151205 )

2026-06-09 20:16:42 +00:00

ast_preprocess.c

[3.15] gh-152708: Fix AST generation asymmetry for unary positive in match statements (GH-152712) (#158079 )

2026-09-24 23:51:39 +01:00

ast_unparse.c

gh-143055: Fix crash in AST unparser when unparsing dict comprehension unpacking (#145556 )

2026-03-09 10:37:23 -07:00

ast.c

[3.15] gh-152708: Fix AST generation asymmetry for unary positive in match statements (GH-152712) (#158079 )

2026-09-24 23:51:39 +01:00

bltinmodule.c

[3.15] gh-152132: Test Py_CompileString() in test_capi.test_run (GH-153470) (#153472 )

2026-07-10 02:07:38 +00:00

bootstrap_hash.c

GH-131238: Core header refactor (GH-131250)

2025-03-17 09:19:04 +00:00

brc.c

[3.15] gh-157838: Merge biased refcounts on behalf of detached threads (#157839 ) (#158011 )

2026-09-29 10:13:34 +03:00

bytecodes.c

[3.15] gh-142349: Simplify lazy import resolution (GH-158282) (#158569 )

2026-10-01 16:56:39 +00:00

ceval_gil.c

gh-144748: Make PyErr_CheckSignals raise the exception scheduled by PyThreadState_SetAsyncExc (GH-145178)

2026-03-02 11:47:32 +01:00

ceval_macros.h

[3.15] gh-129752: Don't update adaptive counters when TLBC=0 in free-threading. (gh-155497) (#155647 )

2026-08-26 14:52:45 +09:00

ceval.c

[3.15] gh-142349: Simplify lazy import resolution (GH-158282) (#158569 )

2026-10-01 16:56:39 +00:00

ceval.h

gh-142186: Allow all PEP-669 events to be per-code object and disableable (GH-146182)

2026-04-22 09:08:23 +01:00

codecs.c

[3.15] gh-151253: Dump the Python path configuration on _PyCodec_InitRegistry() failure (#151250 ) (#151269 )

2026-06-10 22:03:27 +02:00

codegen.c

[3.15] gh-156466: Fix additional compiler scope cleanup errors (GH-156547) (#156571 )

2026-08-31 12:49:27 +03:00

compile.c

[3.15] gh-156466: Fix additional compiler scope cleanup errors (GH-156547) (#156571 )

2026-08-31 12:49:27 +03:00

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

[3.15] gh-155519: fix data-race for Context.ctx_vars (GH-155522) (#155893 )

2026-08-19 06:31:44 +03:00

critical_section.c

[3.15] gh-150902: Optimize PyCriticalSection2 to skip locking the same locks held by the current CS2 (gh-151554)

2026-06-19 09:52:07 -04:00

crossinterp_data_lookup.h

gh-147960: Fix memory leak in crossinterp _tuple_shared() on alloc failure (#147961 )

2026-04-01 18:34:55 +02:00

crossinterp_exceptions.h

gh-132775: Clean Up Cross-Interpreter Error Handling (gh-135369)

2025-06-13 16:45:21 -06:00

crossinterp.c

[3.15] gh-151842: Fix crash upon OOM in _interpreters.capture_exception (GH-151843) (GH-152031)

2026-06-23 20:58:10 +00:00

dtoa.c

[3.15] gh-158446: Reject float format precision near INT_MAX (GH-158474) (#158476 )

2026-09-30 11:18:45 +03:00

dup2.c

gh-108765: Python.h no longer includes <unistd.h> (#108783 )

2023-09-02 16:50:18 +02:00

dynamic_annotations.c

bpo-32241: Add the const qualifire to declarations of umodifiable strings. (#4748 )

2017-12-12 13:55:04 +02:00

dynload_hpux.c

gh-88402: Add new sysconfig variables on Windows (GH-110049)

2023-10-04 22:50:29 +00:00

dynload_shlib.c

[3.15] gh-122931: Allow stable abi3 API extensions to include a multiarch tuple in the filename (GH-152461) (GH-154772)

2026-07-29 10:21:30 +02:00

dynload_stub.c

gh-88402: Add new sysconfig variables on Windows (GH-110049)

2023-10-04 22:50:29 +00:00

dynload_win.c

gh-148690: Build Windows freethreaded binaries into separate directory and include python3t.dll on GIL-enabled (GH-149218)

2026-05-04 17:45:08 +01:00

emscripten_signal.c

GH-108614: Unbreak emscripten build (GH-109132)

2023-09-08 17:54:45 +01:00

emscripten_syscalls.c

gh-124621: Emscripten: Fix __syscall_ioctl patch (GH-136993)

2025-07-22 15:05:26 +02:00

emscripten_trampoline_inner.c

gh-128627: Use __builtin_wasm_test_function_pointer_signature for Emscripten trampoline (#137470 )

2025-09-17 15:33:55 +01:00

emscripten_trampoline.c

gh-145037: Fix Emscripten trampoline with emcc >= 4.0.19 (#145038 )

2026-02-26 06:21:05 +08:00

errors.c

gh-146480: Override the exception in _PyErr_SetKeyError() (#146486 )

2026-03-27 11:20:19 +00:00

executor_cases.c.h

[3.15] gh-142349: Simplify lazy import resolution (GH-158282) (#158569 )

2026-10-01 16:56:39 +00:00

fileutils.c

gh-42400: Fix buffer overflow in _Py_wrealpath() for very long paths (#141529 )

2025-11-18 17:34:58 +01:00

flowgraph.c

[3.15] gh-148817: Fold long lists/sets of constant elements into constant tuples/frozensets (GH-149016) (#155897 )

2026-08-19 06:33:24 +03:00

frame.c

gh-144446: Fix some frame object thread-safety issues (gh-144479)

2026-02-06 09:43:36 -05:00

frozen.c

[3.15] gh-148750: Unfreeze encodings module to avoid import errors with zipped stdlib (GH-156183) (#156328 )

2026-08-27 13:51:03 +03:00

frozenmain.c

Use PyConfig_Get() in frozenmain.c (#137421 )

2025-08-06 14:33:28 +02:00

future.c

gh-126139: Improve error message location for future statement with unknown feature (#126140 )

2024-10-29 23:57:59 +00:00

gc_free_threading.c

[3.15] Revert backports merged during the 3.15.0 release freeze on 5 October (#158873 )

2026-10-05 17:15:41 +00:00

gc_gil.c

gh-100240: Use a consistent implementation for freelists (#121934 )

2024-07-22 12:08:27 -04:00

gc.c

[3.15] Revert backports merged during the 3.15.0 release freeze on 5 October (#158873 )

2026-10-05 17:15:41 +00:00

generated_cases.c.h

[3.15] gh-142349: Simplify lazy import resolution (GH-158282) (#158569 )

2026-10-01 16:56:39 +00:00

getargs.c

gh-146615: Fix format specifiers in Python/ directory (GH-146619)

2026-03-31 10:59:17 +03:00

getcompiler.c

gh-141341: Rename COMPILER macro to _Py_COMPILER on Windows (#141342 )

2025-11-10 15:50:51 +01:00

getcopyright.c

gh-126133: Only use start year in PSF copyright, remove end years (#126236 )

2024-11-12 15:59:19 +02:00

getopt.c

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

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

getplatform.c

bpo-32150: Expand tabs to spaces in C files. (#4583 )

2017-11-28 17:56:10 +02:00

getversion.c

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

2025-06-16 23:32:52 +09:00

hamt.c

[3.15] gh-155515: Use GC tracking for HAMT iterators (GH-155517) (#155697 )

2026-08-17 03:58:10 +00:00

hashtable.c

gh-111545: Add Py_HashPointer() function (#112096 )

2023-12-06 15:09:22 +01:00

import.c

[3.15] gh-158820: Add null checks to avoid segfaults with lazy imports at shutdown (GH-158821) (#159062 )

2026-10-09 12:14:23 -07:00

importdl.c

gh-140011: Delete importdl assertion that prevents importing embedded modules from packages (GH-141605)

2025-11-26 14:12:49 +01:00

index_pool.c

gh-91048: Refactor and optimize remote debugging module (#134652 )

2025-05-25 20:19:29 +00:00

initconfig.c

[3.15] gh-153300: Set global configuration variables in PyConfig_Set() (GH-153301) (#153356 )

2026-07-08 20:21:20 +02:00

instruction_sequence.c

GH-143493: Conform to spec for generator expressions while supporting virtual iterators (GH-143569)

2026-01-16 09:11:58 +00:00

instrumentation.c

[3.15] Revert backports merged during the 3.15.0 release freeze on 5 October (#158873 )

2026-10-05 17:15:41 +00:00

interpconfig.c

gh-146615: Fix format specifiers in Python/ directory (GH-146619)

2026-03-31 10:59:17 +03:00

intrinsics.c

gh-111489: Remove _PyTuple_FromArray() alias (#139973 )

2025-10-11 22:58:14 +02:00

jit_publish.c

GH-126910: Add GNU backtrace support for unwinding JIT frames (#149104 )

2026-05-05 09:29:07 +01:00

jit_unwind.c

[3.15] gh-139808: Add branch protections for aarch64 in asm_trampoline.S (GH-130864) (#149730 )

2026-05-12 22:10:24 +02:00

jit.c

GH-143732: SEND specialization (GH-148963)

2026-05-05 15:19:16 +01:00

legacy_tracing.c

gh-148037: remove critical section from PyCode_Addr2Line (#148103 )

2026-04-10 17:58:17 +05:30

lock.c

[3.15] gh-157914: Revert "gh-135871: Reload lock internal state while spinning in PyMutex_LockTimed (gh-146064)" (gh-158082) (#158290 )

2026-09-30 13:17:02 +03:00

marshal.c

[3.15] gh-128509: Use bytes singletons in marshal (GH-157398) (#157433 )

2026-09-15 16:44:47 +03:00

modsupport.c

gh-146636: Py_mod_abi mandatory for modules created from slots array (GH-146855)

2026-04-02 13:54:21 +02:00

mysnprintf.c

Add a warning message about PyOS_snprintf (#95993 )

2022-10-07 11:49:53 -07:00

mystrtoul.c

gh-108765: Python.h no longer includes <ctype.h> (#108831 )

2023-09-03 18:54:27 +02:00

object_stack.c

gh-100240: Use a consistent implementation for freelists (#121934 )

2024-07-22 12:08:27 -04:00

opcode_targets.h

GH-143732: SEND specialization (GH-148963)

2026-05-05 15:19:16 +01:00

optimizer_analysis.c

[3.15] gh-145235: Make dict watcher API thread-safe for free-threaded builds (gh-145233) (#149690 )

2026-05-11 14:23:39 -04:00

optimizer_bytecodes.c

[3.15] gh-149459: Fix segfault when _LOAD_SPECIAL guard deoptimizes (GH-149478) (#149552 )

2026-05-08 11:48:04 +00:00

optimizer_cases.c.h

[3.15] gh-142349: Simplify lazy import resolution (GH-158282) (#158569 )

2026-10-01 16:56:39 +00:00

optimizer_symbols.c

gh-146261: JIT: protect against function version changes (#146300 )

2026-04-13 02:23:47 +08:00

optimizer.c

[3.15] Backport GH-148874: Make sure that mngr.__exit__() is always called in a with statement (GH-150911) (GH-154830)

2026-08-03 16:23:34 +01:00

parking_lot.c

gh-148820: Fix _PyRawMutex use-after-free on spurious semaphore wakeup (gh-148852)

2026-04-22 14:31:19 -04:00

pathconfig.c

gh-133644: Remove deprecated Python initialization getter functions (#133661 )

2025-05-09 11:39:23 +00:00

perf_jit_trampoline.c

[3.15] gh-156114: Fix crash in perf trampoline with unencodable code names (GH-156300) (#157773 )

2026-09-18 21:37:15 +00:00

perf_trampoline.c

[3.15] gh-156114: Fix crash in perf trampoline with unencodable code names (GH-156300) (#157773 )

2026-09-18 21:37:15 +00:00

preconfig.c

gh-146302: make Py_IsInitialized() thread-safe and reflect true init completion (GH-146303)

2026-04-11 21:54:23 +00:00

pyarena.c

Chore: Fix typo in pyarena.c (#126527 )

2024-11-07 16:37:41 +01:00

pyctype.c

…

pyfpe.c

bpo-46315: Add ifdef HAVE_ feature checks for WASI compatibility (GH-30507)

2022-01-13 09:46:04 +01:00

pyhash.c

gh-141226: Deprecate PEP-456 support for embedders (#141287 )

2026-02-21 12:42:13 +01:00

pylifecycle.c

[3.15] gh-154822: Fix racy assertion during finalization (GH-154824) (GH-154828)

2026-07-28 16:39:33 +00:00

pymath.c

bpo-45440: Remove pymath.c fallbacks (GH-28977)

2021-10-15 19:45:34 +02:00

pystate.c

[3.15] gh-142349: Simplify lazy import resolution (GH-158282) (#158569 )

2026-10-01 16:56:39 +00:00

pystats.c

gh-146073: Add fitness/exit quality mechanism for JIT trace frontend (GH-148089)

2026-04-24 10:37:01 +01:00

pystrcmp.c

gh-108767: Replace ctype.h functions with pyctype.h functions (#108772 )

2023-09-01 18:36:53 +02:00

pystrhex.c

[3.15] gh-149685: Use the _Py prefix for private C macros (GH-149686) (GH-149790)

2026-05-13 23:29:08 +02:00

pystrtod.c

[3.15] gh-158446: Reject float format precision near INT_MAX (GH-158474) (#158476 )

2026-09-30 11:18:45 +03:00

Python-ast.c

[3.15] gh-156689: Fix out-of-bounds read in PyAst_CheckMode() for mode='func_type' (GH-156697) (#156705 )

2026-09-24 16:21:58 +01:00

Python-tokenize.c

gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770 )

2026-03-24 17:47:55 +00:00

pythonrun.c

[3.15] gh-152132: Test Py_CompileString() in test_capi.test_run (GH-153470) (#153472 )

2026-07-10 02:07:38 +00:00

pytime.c

[3.15] gh-152849: Fix OverflowError message for out-of-range timestamps in the time module (GH-152850) (#153209 )

2026-07-06 15:25:47 +00:00

qsbr.c

gh-144438: Fix false sharing between QSBR and tlbc_index (gh-144554)

2026-02-17 11:12:25 -05:00

README

Issue #18093 : Factor out the programs that embed the runtime

2014-07-25 21:52:14 +10:00

record_functions.c.h

GH-143732: SEND specialization (GH-148963)

2026-05-05 15:19:16 +01:00

remote_debug.h

[3.15] Revert backports merged during the 3.15.0 release freeze on 5 October (#158873 )

2026-10-05 17:15:41 +00:00

remote_debugging.c

gh-138122: Implement frame caching in RemoteUnwinder to reduce memory reads (#142137 )

2025-12-06 22:37:34 +00:00

slots_generated.c

gh-149044: Implement PEP 820 – PySlot: Unified slot system for the C API (GH-149055)

2026-05-05 09:18:04 +02:00

slots.c

gh-149044: Implement PEP 820 – PySlot: Unified slot system for the C API (GH-149055)

2026-05-05 09:18:04 +02:00

slots.toml

gh-149044: Implement PEP 820 – PySlot: Unified slot system for the C API (GH-149055)

2026-05-05 09:18:04 +02:00

specialize.c

[3.15] GH-151619: Ensure non-module global/builtin namespaces are watched for lazy imports (GH-151762) (#152533 )

2026-06-28 22:53:20 +00:00

stackrefs.c

gh-131527: Stackref debug borrow checker (#140599 )

2025-11-05 11:12:56 -08:00

stdlib_module_names.h

gh-81313: Add the math.integer module (PEP-791) (GH-133909)

2025-10-31 16:13:43 +02:00

structmember.c

gh-146270: Fix PyMember_SetOne(..., NULL) not being atomic (gh-148800)

2026-05-06 09:50:24 -04:00

suggestions.c

GH-131238: Core header refactor (GH-131250)

2025-03-17 09:19:04 +00:00

symtable.c

[3.15] gh-156525: fix a few error path scope management bugs in symtable (GH-156526) (#156532 )

2026-10-09 08:59:38 -07:00

sysmodule.c

[3.15] gh-157247: Block perf trampoline activation when the main interpreter's JIT is enabled (GH-157258) (#157324 )

2026-09-23 01:11:38 +01:00

thread_nt.h

[3.15] gh-134745: Remove dead code in thread_nt.h left by gh-134747 (GH-154338) (#154655 )

2026-07-24 23:01:47 +00:00

thread_pthread_stubs.h

gh-125161: return non zero value in pthread_self on wasi (#125303 )

2024-10-13 20:59:41 +05:30

thread_pthread.h

[3.15] gh-154283: Make threading.get_native_id() unique across processes on DragonFly (GH-154287) (GH-154293)

2026-07-20 20:20:57 +00:00

thread.c

gh-134745: Use "pymutex" for sys.thread_info on Windows (#141140 )

2025-11-06 16:10:39 +01:00

tier2_engine.md

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

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

traceback.c

[3.15] gh-113318: Fix @getter and @setter in Argument Clinic (GH-155778) (GH-156010)

2026-10-09 20:54:35 +03:00

tracemalloc.c

[3.15] gh-155725: Remove PyGILState_Ensure usage from tracemalloc (GH-156409) (#156628 )

2026-08-31 09:53:56 +03:00

uniqueid.c

gh-128923: Use zero to indicate unassigned unique id (#128925 )

2025-01-17 16:42:27 +01:00

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