Search results

argparse: Argparse: Add subnamespace flag to _SubParsersAction.add_parser() to allow nested Namespaces

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#149461 In python/cpython;

· jb2170 opened on May 6, 2026

JIT: segfault from _PyObject_LookupSpecialMethod

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

topic-JIT

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

Status: Open.

#149459 In python/cpython;

· devdanzin opened on May 6, 2026

Python 3.14 webbrowser regression when launching vscode:// URI on macOS

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

Status: Open.

#149454 In python/cpython;

· skissane-medallia opened on May 6, 2026

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

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#149452 In python/cpython;

· itamarst opened on May 6, 2026

Deleting unicodedata from sys.modules can cause pointer use-after-free

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

topic-unicode

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

Status: Open.

#149449 In python/cpython;

· stestagg opened on May 6, 2026

[BUILD] ensurepip: pip wheel paths install outside staged --root

Status: Open.

#149444 In python/cpython;

· sulincix opened on May 6, 2026

Speed up inspect.getattr_static for the common-metaclass case

performancePerformance or resource usagePerformance or resource usage

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

topic-typing

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#149436 In python/cpython;

· eendebakpt opened on May 5, 2026

profiling.sampling visualisation outputs have edge-case failures

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

topic-profiling

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

Status: Open.

#149430 In python/cpython;

· lkollar opened on May 5, 2026

Improve performance of re.compile() for patterns with character ranges

performancePerformance or resource usagePerformance or resource usage

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

topic-regex

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#149427 In python/cpython;

· eendebakpt opened on May 5, 2026

3.14.x crashes with tail call interpreter and CFLAGS="-O2 -march=znver2"

3.14bugs and security fixesbugs and security fixes

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

Status: Open.

#149414 In python/cpython;

· thesamesam opened on May 5, 2026

Meta issue: improve documentation for implementation of the PEP 3118 in Python

docsDocumentation in the Doc dirDocumentation in the Doc dir

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

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

Status: Open.

#149402 In python/cpython;

· skirpichev opened on May 5, 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