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Update JIT builds to use LLVM 22

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

dependenciesPull requests that update a dependency filePull requests that update a dependency file

infraCI, GitHub Actions, buildbots, Dependabot, etc.CI, GitHub Actions, buildbots, Dependabot, etc.

topic-JIT

Status: Open.

#148709 In python/cpython;

· savannahostrowski opened on Apr 18, 2026

Pure-Python pickle._Pickler can be significantly optimized

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#148706 In python/cpython;

· mjbommar opened on Apr 18, 2026

Add missing test coverage for asyncio.graph

testsTests in the Lib/test dirTests in the Lib/test dir

topic-asyncio

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#148701 In python/cpython;

· ashm-dev opened on Apr 17, 2026

Handle unicode characters in bytecodes.c

triagedThe issue has been accepted as valid by a triager.The issue has been accepted as valid by a triager.

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

Status: Open.

#148697 In python/cpython;

· eendebakpt opened on Apr 17, 2026

Lint warnings in cases generator, ceval with GIL, and optimizer.

Status: Open.

#148695 In python/cpython;

· clin1234 opened on Apr 17, 2026

Free-threaded and GIL-enabled Windows builds should share an abi3 libpython dll

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

OS-windows

topic-free-threading

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

Status: Open.

#148690 In python/cpython;

· ngoldbaum opened on Apr 17, 2026

bz2: PyBytesWriter_Discard() is called twice on memory allocation failure

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

Status: Open.

#148688 In python/cpython;

· vstinner opened on Apr 17, 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

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

Status: Open.

#148680 In python/cpython;

· DavidCEllis opened on Apr 17, 2026

Add support for numpy buffer format Zf and Zd

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.

#148675 In python/cpython;

· vstinner opened on Apr 17, 2026

Document the unexpected importing of sub-namespaces inside normal python packages/namespaces (or treat it as bug)

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#148672 In python/cpython;

· pakal opened on Apr 17, 2026

Clarify pickle __reduce__() behavior when a string is returned (singleton support).

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#148669 In python/cpython;

· Viicos opened on Apr 17, 2026

Enable socket.shutdown function for emscripten builds

OS-emscripten

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

Status: Open.

#148665 In python/cpython;

· ryanking13 opened on Apr 17, 2026