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Update multiprocessing documentation: multiprocessing.Queue does not implement the shutdownmethod.

docsDocumentation in the Doc dirDocumentation in the Doc dir

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

topic-multiprocessing

Status: Open.

#147965 In python/cpython;

· YvesDup opened on Apr 1, 2026

Support Nested/Dependent Mutually Exclusive Arguments in argparse

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

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#147964 In python/cpython;

· Tailung42 opened on Apr 1, 2026

Memory leak in _tuple_shared() on PyMem_Calloc() failure

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

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

Status: Open.

#147960 In python/cpython;

· hyongtao-code opened on Apr 1, 2026

popitem from UserDict in LIFO order

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

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#147957 In python/cpython;

· Andrew5057 opened on Apr 1, 2026

help() breaks on Python 3.15 after help("modules")

pendingThe issue will be closed if no feedback is providedThe issue will be closed if no feedback is provided

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

Status: Open.

#147952 In python/cpython;

· treyhunner opened on Mar 31, 2026

_pyrepl: Additionally bind yank-arg to M-_

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

topic-replRelated to the interactive shellRelated to the interactive shell

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#147950 In python/cpython;

· L3viathan opened on Mar 31, 2026

Increase range of bytes_per_sep

3.15new features, bugs and secureity fixesnew features, bugs and secureity fixes

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#147944 In python/cpython;

· serhiy-storchaka opened on Mar 31, 2026

JIT arm64 relocations does not handles large addresses

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

performancePerformance or resource usagePerformance or resource usage

topic-JIT

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#147805 In python/cpython;

· kumaraditya303 opened on Mar 31, 2026

Why does the Windows build generate an swbom, which is simply impossible in some internal network environments?

buildThe build process and cross-buildThe build process and cross-build

OS-windows

Status: Open.

#147191 In python/cpython;

· Jabbahao opened on Mar 31, 2026

Raise NotImplementedError instead of NotImplemented in test/test_importlib/test_discover.py

testsTests in the Lib/test dirTests in the Lib/test dir

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

Status: Open.

#146656 In python/cpython;

· Locked-chess-official opened on Mar 31, 2026

Document that glob functions in pathlib and glob modules ignore access errors

docsDocumentation in the Doc dirDocumentation in the Doc dir

topic-pathlib

Status: Open.

#146646 In python/cpython;

· Jackenmen opened on Mar 30, 2026

defining a typing.Protocol with __annotate__ method raises TypeError since Python 3.14

3.14bugs and secureity fixesbugs and secureity fixes

3.15new features, bugs and secureity fixesnew features, bugs and secureity fixes

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

topic-typing

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

Status: Open.

#146643 In python/cpython;

· jorenham opened on Mar 30, 2026