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Add support for VISCII encoding in codecs

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-unicode

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#148865 In python/cpython;

· henryivesjones opened on Apr 22, 2026

REPL pasting behavior is different on Windows and unix consoles

OS-windows

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

topic-replRelated to the interactive shellRelated to the interactive shell

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

Status: Open.

#148861 In python/cpython;

· GabrielvMarinho opened on Apr 22, 2026

Deprecate BaseCookie.js_output() method

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.

#148849 In python/cpython;

· sethmlarson opened on Apr 21, 2026

argparse in 3.14+ is importing _colorize earlier than necessary

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.

#148823 In python/cpython;

· DavidCEllis opened on Apr 21, 2026

Expose message ID list from ReferencesHeader

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.

#148797 In python/cpython;

· septatrix opened on Apr 20, 2026

Support Unix-like locales on Windows

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

OS-windows

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.

#148792 In python/cpython;

· serhiy-storchaka opened on Apr 20, 2026

asyncio does not set TCP_NODELAY on macOS

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

topic-asyncio

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

Status: Open.

#148783 In python/cpython;

· SEIAROTg opened on Apr 19, 2026

Fix UUID's CLI for custom namespaces for v3/v5

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.

#148740 In python/cpython;

· sumpygump opened on Apr 18, 2026

asyncio.capture_call_graph: AttributeError walking async-generator ag_await chain

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

topic-asyncio

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

Status: Open.

#148736 In python/cpython;

· rajkripal opened on Apr 18, 2026

annotationlib - evaluating forward references in STRING format can 'leak' internal names

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.

#148680 In python/cpython;

· DavidCEllis opened on Apr 17, 2026

Enable socket.shutdown function for emscripten builds

OS-emscripten

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

topic-multiprocessing

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

Status: Open.

#148665 In python/cpython;

· ryanking13 opened on Apr 17, 2026

Add unicode tips for SyntaxError suggestion

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-unicode

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#148649 In python/cpython;

· Locked-chess-official opened on Apr 16, 2026