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Context.items/keys/values docstrings claim lists but return iterators

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#142918 In python/cpython;

· hyongtao-code opened on Dec 18, 2025

memory leak <code>WARNING: invalid path to external symbolizer</code>

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

Status: Open.

#142917 In python/cpython;

· YuanchengJiang opened on Dec 18, 2025

<code>pathlib.Path.mkdir()</code> raises <code>FileExistsError</code> for non-existent path due to TOCTOU race condition

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

topic-pathlib

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

Status: Open.

#142916 In python/cpython;

· adriancaruana opened on Dec 18, 2025

Explore SIMD-accelerated parsing architecture for the standard json module

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#142915 In python/cpython;

· ErwinCell opened on Dec 18, 2025

Add test coverage for interpreter loop generator overridden insts

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

Status: Open.

#142913 In python/cpython;

· DinoV opened on Dec 18, 2025

Interpreter uses <code>DK_IS_UNICODE</code> where it should use <code>dk_kind == DICT_KEYS_UNICODE</code>

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

Status: Open.

#142908 In python/cpython;

· colesbury opened on Dec 17, 2025

Include conda-forge copyright/license in Tools/pixi-packages/default/recipe.yaml

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#142903 In python/cpython;

· isuruf opened on Dec 17, 2025

pixi definitions fail with <code>pypi-dependencies</code>

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

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

Status: Open.

#142897 In python/cpython;

· crusaderky opened on Dec 17, 2025

<code>shlex.join</code>'s docstring isn't sufficiently clear

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#142895 In python/cpython;

· BenFrantzDale opened on Dec 17, 2025

Many functions in dictobject.c take a <code>PyInterpreterState *interp</code> parameter, but none of them use it.

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

type-refactorCode refactoring (with no changes in behavior)Code refactoring (with no changes in behavior)

Status: Open.

#142890 In python/cpython;

· markshannon opened on Dec 17, 2025

Improved performance and arguably simpler code for dictionaries by changing the keys layout

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

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

performancePerformance or resource usagePerformance or resource usage

Status: Open.

#142889 In python/cpython;

· markshannon opened on Dec 17, 2025

Null pointer dereference in <code>array.array.tofile</code> via reentrant writer

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

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

Status: Open.

#142884 In python/cpython;

· jackfromeast opened on Dec 17, 2025