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<code>classmethod</code> and <code>staticmethod</code> can crash with <code>NULL</code> / uninitialized callables

3.13bugs and security fixesbugs and security fixes

3.14bugs and security fixesbugs and security fixes

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)

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

Status: Open.

#144330 In python/cpython;

· colesbury opened on Jan 29, 2026

State <code>._pth</code> files are Windows-only

docsDocumentation in the Doc dirDocumentation in the Doc dir

OS-windows

Status: Open.

#144329 In python/cpython;

· htgoebel opened on Jan 29, 2026

Error messages for <code>{}</code> style formatters for int, float, str, and complex

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

Status: Open.

#144325 In python/cpython;

· Lil-Ran opened on Jan 29, 2026

Unexpected result with <code>NamedTuple(name, zip(keys, values))</code>

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.

#144321 In python/cpython;

· randolf-scholz opened on Jan 29, 2026

Add huge pages support for pymalloc

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.

#144319 In python/cpython;

· pablogsal opened on Jan 29, 2026

<code>RemoteUnwinder.get_stack_trace</code> is missing exceptions on some error code paths

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

topic-profiling

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

Status: Open.

#144316 In python/cpython;

· colesbury opened on Jan 28, 2026

Possible data race in <code>new_keys_object</code> in <code>dictobject.c</code>

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

topic-free-threading

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

Status: Open.

#144295 In python/cpython;

· Naserume opened on Jan 28, 2026

Suggestions: check for name collisions between modules and items in a module

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.

#144285 In python/cpython;

· ngoldbaum opened on Jan 27, 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

[JIT] Crash (SEGV) in optimizer_symbols.c:696 during symbolic truthiness analysis in Tier 2 uop optimizer

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.

#144280 In python/cpython;

· YuanchengJiang opened on Jan 27, 2026

Allow disabling cache_tag at build

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

topic-importlib

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

Status: Open.

#144278 In python/cpython;

· zooba opened on Jan 27, 2026

Inconsistent use of the "free threading" term

docsDocumentation in the Doc dirDocumentation in the Doc dir

topic-free-threading

Status: Open.

#144277 In python/cpython;

· ZeroIntensity opened on Jan 27, 2026