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Remove kw parameters from python version of functools.reduce

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.

#149537 In python/cpython;

· sobolevn opened on May 8, 2026

defaultdict | frozendict returns dict, not defaultdict

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

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

Status: Open.

#149534 In python/cpython;

· JelleZijlstra opened on May 8, 2026

Remove bool.__invert__ for 3.16

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.

#149532 In python/cpython;

· sobolevn opened on May 8, 2026

Remove symtable.Class.get_methods for 3.16

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.

#149530 In python/cpython;

· sobolevn opened on May 8, 2026

OSError: AF_UNIX path too long regression in forkserver

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

Status: Open.

#149527 In python/cpython;

· mgorny opened on May 8, 2026

Various grammatical errors and parameter name mismatches in asyncio docs

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#149525 In python/cpython;

· jonathandung opened on May 8, 2026

_remote_debugging: no need to update last_profiled_frame if no change

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

Status: Open.

#149521 In python/cpython;

· maurycy opened on May 8, 2026

MacOS applications folder missing after install without GUI Applications

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

Status: Open.

#149515 In python/cpython;

· cdce8p opened on May 7, 2026

posix_spawn crashes when python is run with gprofng

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

Status: Open.

#149509 In python/cpython;

· scott-snyder opened on May 7, 2026

[3.15] Re-entrant calls to site.addsitedir() can fail (affecting uv run)

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

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

Status: Open.

#149504 In python/cpython;

· JelleZijlstra opened on May 7, 2026

Fix compilation warning for _YIELD_VALUE

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

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.

#149501 In python/cpython;

· sergey-miryanov opened on May 7, 2026

dis: FOR_ITER reports wrong exhausted-path jump target (END_FOR instead of POP_ITER)

Status: Open.

#149498 In python/cpython;

· P403n1x87 opened on May 7, 2026