Search results

os.process_cpu_count() should take cgroups CPU limitations into account (on Linux)

extension-modulesC modules in the Modules dirC modules in the Modules dir

topic-multiprocessing

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#149452 In python/cpython;

· itamarst opened on May 6, 2026

Expose Barrier in the multiprocessing.synchronize module.

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-multiprocessing

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#149400 In python/cpython;

· YvesDup opened on May 5, 2026

Modify the __repr__ method of multiprocessing.[Barrier|Event] to be consistent with the other synchronization primitives.

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-multiprocessing

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#149399 In python/cpython;

· YvesDup opened on May 5, 2026

Enable socket.shutdown function for emscripten builds

OS-emscripten

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-multiprocessing

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148665 In python/cpython;

· ryanking13 opened on Apr 17, 2026

subprocess.Popen: warnings.warn() calls missing stacklevel=2

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-multiprocessing

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148402 In python/cpython;

· stef41 opened on Apr 11, 2026

Multiprocessing exitcode=None after join

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-multiprocessing

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148318 In python/cpython;

· uraniumCoder opened on Apr 10, 2026

concurrent.futures.Executor.map with buffersize should yield from buffer and raise after executor shutdown

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-multiprocessing

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#146392 In python/cpython;

· ebonnal opened on Mar 24, 2026

SharedMemory object implement non-uniform size behaviors.

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-multiprocessing

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#145954 In python/cpython;

· chaddnn9 opened on Mar 14, 2026

ShareableList corrupts multi-byte UTF-8 strings and bytes with trailing nulls

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-multiprocessing

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#145261 In python/cpython;

· zetzschest opened on Feb 26, 2026

multiprocessing.Pool fails if command has a long list of arguments (regression in 3.14.3, 3.13.12)

3.13bugs and security fixesbugs and security fixes

3.14bugs and security fixesbugs and security fixes

3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixes

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-multiprocessing

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#144503 In python/cpython;

· sjoerdjob opened on Feb 5, 2026

SIGBUS (Invalid Write) in memory_ass_sub via multiprocessing.shared_memory during buffer assignment

extension-modulesC modules in the Modules dirC modules in the Modules dir

topic-multiprocessing

type-crashA hard crash of the interpreter, possibly with a core dumpA hard crash of the interpreter, possibly with a core dump

Status: Open.

#144281 In python/cpython;

· YuanchengJiang opened on Jan 27, 2026

multiprocessing.Queue methods have asymmetric behavior

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

topic-multiprocessing

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#142837 In python/cpython;

· x42005e1f opened on Dec 16, 2025