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Add Perfetto trace output to profiling.sampling

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#150327 In python/cpython;

· LalitMaganti opened on May 23, 2026

JIT stencil digest is too coarse

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

topic-JIT

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#150320 In python/cpython;

· savannahostrowski opened on May 23, 2026

Document generic parameters of generic classes

docsDocumentation in the Doc dirDocumentation in the Doc dir

topic-typing

Status: Open.

#150319 In python/cpython;

· JelleZijlstra opened on May 23, 2026

statistics.quantiles(exclusive) returns unsorted cut points for duplicate float-inexact data

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.

#150318 In python/cpython;

· zhangjiashuo-cs opened on May 23, 2026

Add tests for computed write buffer limits in asyncio FlowControlMixin

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

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

topic-asyncio

Status: Open.

#150315 In python/cpython;

· azibom opened on May 23, 2026

Minor issue into configure.ac for the CYGWIN port

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

OS-unsupported

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

Status: Open.

#150311 In python/cpython;

· carlo-bramini opened on May 23, 2026

Line overflow in pydoc output due to long docstrings

3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixes

3.16new features, bugs and security fixesnew features, bugs and security fixes

docsDocumentation in the Doc dirDocumentation in the Doc dir

topic-argument-clinic

Status: Open.

#150285 In python/cpython;

· serhiy-storchaka opened on May 23, 2026

TSan warnings with free-threaded interpreter on macOS 26 arm64 and Clang 22

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.

#150284 In python/cpython;

· clin1234 opened on May 23, 2026

Lock free _STORE_ATTR_SLOTS

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

performancePerformance or resource usagePerformance or resource usage

topic-free-threading

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#150277 In python/cpython;

· eendebakpt opened on May 22, 2026

Clarify module.__file__ documentation in the data model reference

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#150274 In python/cpython;

· RaghunandanKumar opened on May 22, 2026

Two tests from test.test_asyncio.test_subprocess fail if path to cpython contains spaces

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.

#150244 In python/cpython;

· Jayman2000 opened on May 22, 2026

PEP 829: resolve the design of the site dir batch processing API

3.15pre-release feature fixes, bugs and security fixespre-release feature fixes, bugs and security fixes

3.16new features, bugs and security fixesnew features, bugs and security fixes

docsDocumentation in the Doc dirDocumentation in the Doc dir

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

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

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#150228 In python/cpython;

· ncoghlan opened on May 22, 2026