Gregory P. Smith ee5318025b gh-140814: Fix freeze_support() setting start method as side effect (GH-144608) ... freeze_support() called get_start_method() without allow_none=True, which locked in the default start method context. This caused a subsequent set_start_method() call to raise "context has already been set". Use allow_none=True and accept None as a matching value, since spawn.freeze_support() independently detects spawned child processes. Test that freeze_support() does not lock in the default start method, which would prevent a subsequent set_start_method() call. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>		2026-03-15 22:50:19 -07:00
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dummy	gh-138813: Fix mutable default kwargs={} in multiprocessing BaseProcess and DummyProcess to use None (GH-138814)	2025-09-17 14:45:52 -07:00
__init__.py	Simplify __all__ in multiprocessing (GH-6856)	2018-07-11 19:22:28 +09:00
connection.py	gh-145587: fix busy loop in multiprocessing.connection.wait on Windows (GH-145597)	2026-03-11 13:08:48 +01:00
context.py	gh-140814: Fix freeze_support() setting start method as side effect (GH-144608)	2026-03-15 22:50:19 -07:00
forkserver.py	gh-141860: Add on_error= keyword arg to multiprocessing.set_forkserver_preload (GH-141859)	2026-01-18 14:04:18 -08:00
heap.py	gh-137928: remove redundant size validation in multiprocessing.heap (GH-137929)	2025-11-12 00:36:43 +00:00
managers.py	gh-115942: Add locked to several multiprocessing locks (#115944)	2025-04-08 11:14:12 +03:00
pool.py	gh-109649: Use os.process_cpu_count() (#110165)	2023-10-01 03:14:57 +02:00
popen_fork.py	gh-131913: multiprocessing: add interrupt for POSIX (GH-132453)	2025-04-22 23:55:24 -07:00
popen_forkserver.py	bpo-36888: Add multiprocessing.parent_process() (GH-13247)	2019-05-20 21:37:05 +02:00
popen_spawn_posix.py	gh-118981: multiprocessing.popen_spawn_posix, fix potential hang (gh-118982)	2025-09-07 07:18:28 +00:00
popen_spawn_win32.py	gh-118293: Suppress mouse cursor feedback when launching Windows processes with multiprocessing (GH-118315)	2024-04-28 21:10:44 +00:00
process.py	gh-138813: Fix mutable default kwargs={} in multiprocessing BaseProcess and DummyProcess to use None (GH-138814)	2025-09-17 14:45:52 -07:00
queues.py	gh-133146: Add the old public get_value method to documentation and refactor code. (GH-133301)	2025-11-29 22:12:48 +00:00
reduction.py	gh-97514: Authenticate the forkserver control socket. (GH-99309)	2024-11-20 08:18:58 -08:00
resource_sharer.py	gh-101225: Increase the socket backlog when creating a multiprocessing.connection.Listener (#113567)	2024-01-13 10:48:33 +01:00
resource_tracker.py	gh-142206: multiprocessing.resource_tracker: Decode messages using older protocol (GH-142215)	2025-12-03 12:59:14 +00:00
shared_memory.py	gh-121288: Make error message for index() methods consistent (GH-121395)	2024-07-05 10:50:45 -07:00
sharedctypes.py	gh-133017: Improve error message for invalid typecodes in multiprocessing.{Array,Value} (GH-133252)	2025-05-09 11:46:45 +03:00
spawn.py	gh-109263: Start process from spawn context in multiprocessing no longer have side effect (GH-135813)	2025-12-23 19:28:32 +00:00
synchronize.py	gh-133146: Add the old public get_value method to documentation and refactor code. (GH-133301)	2025-11-29 22:12:48 +00:00
util.py	gh-140734: fix off-by-one error when comparing to _SUN_PATH_MAX (#140903)	2025-11-07 09:54:02 +00:00