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NEWS entries for Argument Clinic refactors should be removed

docsDocumentation in the Doc dirDocumentation in the Doc dir

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.

#143773 In python/cpython;

· Aniketsy opened on Jan 13, 2026

Bug in PyObject_CopyData leads to incorrect data copying order

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.

#143737 In python/cpython;

· buxingtan opened on Jan 12, 2026

email package: UnicodeEncodeError in as_bytes() when folding malformed Subject header mixing raw UTF‑8 and encoded‑words

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

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

topic-email

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#143712 In python/cpython;

· DRSpalding opened on Jan 11, 2026

5 tests failed

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

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.

#143527 In python/cpython;

· Hurled3574 opened on Jan 7, 2026

Suggested change to dnd.py to better work with multiple top level windows.

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

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

topic-tkinter

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#143425 In python/cpython;

· f34rdotcom opened on Jan 5, 2026

Use-after-free in <code>s_pack_internal</code> via re-entrant <code>__bool__</code>

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

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

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

Status: Open.

#143379 In python/cpython;

· jackfromeast opened on Jan 3, 2026

gh-133403: Add type annotations to generate_levenshtein_examples.py

awaiting review

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

Status: Open (in progress).

python/cpythonnumber 143317

#143317 In python/cpython;

· sandole opened on Dec 31, 2025

warnings writes the full source line instead of the truncated one

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

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.

#143201 In python/cpython;

· AZero13 opened on Dec 26, 2025

Support <code>exist_ok</code> for <code>pathlib</code>'s <code>Path.copy_into()</code>

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

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

topic-pathlib

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#143052 In python/cpython;

· Sevrain1 opened on Dec 21, 2025

argparse.HelpFormatter color argument removed in 3.15.0a3 without deprecation

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

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

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.

#142928 In python/cpython;

· hroncok opened on Dec 18, 2025

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

docsDocumentation in the Doc dirDocumentation in the Doc dir

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

Status: Open.

#142895 In python/cpython;

· BenFrantzDale opened on Dec 17, 2025

Crash <code>msgspec</code> with Python 3.13.*

3.13bugs and security fixesbugs and security fixes

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

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

topic-C-API

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

Status: Open.

#142671 In python/cpython;

· shadchin opened on Dec 13, 2025