Issues

Issues

• [FR] Automatically define Py_LIMITED_API from py_limited_api

  pypa/setuptools#5370 · opened on Oct 23, 2026

• [BUG] Windows PyPy CFFI extensions become unimportable with setuptools 84.2.0

  pypa/setuptools#5367 · opened on Oct 22, 2026
  1

• [Docs] "Sponsor this project" link goes to "Requesting a SonarSource demo"

  pypa/setuptools#5359 · opened on Oct 19, 2026

• [BUG] Editable installs lose explicitly mapped packages with shared name prefixes

  pypa/setuptools#5354 · opened on Oct 17, 2026

• instal_lib does not handle when sys.implementation.cache_tag is None

  pypa/setuptools#5344 · opened on Oct 6, 2026

• [FR] Support Environment Markers for Packages and ext-modules.

  pypa/setuptools#5341 · opened on Oct 3, 2026

• best_effort_version duplicates part of the version when the input has a v prefix

  pypa/setuptools#5338 · opened on Sep 30, 2026

• [BUG] _distutils_hack is disabled in CPython source tree

  pypa/setuptools#5335 · opened on Sep 24, 2026

• archive_util bypasses tarfile's PEP 706 extraction filters by calling private APIs

  pypa/setuptools#5328 · opened on Sep 8, 2026

• Setuptool

  pypa/setuptools#5322 · opened on Sep 1, 2026

• [FR] Support for metadata 2.6 via PEP 808

  pypa/setuptools#5304 · opened on Aug 18, 2026

• [BUG] 84.0.0: Extension is unhashable (dataclass conversion sets __hash__ = None) — breaks setup scripts using sets of extensions

  pypa/setuptools#5303 · opened on Aug 15, 2026

• [BUG] setuptools 84.0.0 no longer preserves executable bit on  package_data  files in wheels

  pypa/setuptools#5296 · opened on Aug 10, 2026

• 84.0.0: compilers obtained via setuptools._distutils.ccompiler raise a CompileError that setuptools.errors.CompileError no longer matches

  pypa/setuptools#5294 · opened on Aug 9, 2026
  1

• test_apply_pyproject_equivalent_to_setuptcfg is flaky

  pypa/setuptools#5284 · opened on Jul 31, 2026
  2

• [BUG] setuptools.msvc.EnvironmentInfo MSBuild property result incorrect on VS2017+

  pypa/setuptools#5275 · opened on Jul 19, 2026

• Stand up standalone compilers.C distribution

  pypa/setuptools#5274 · opened on Jul 18, 2026 · Deprecate and remove direct usage of distutils
  2

• Retire the distutils hack (remove top-level distutils injection)

  pypa/setuptools#5273 · opened on Jul 18, 2026 · Deprecate and remove direct usage of distutils

• Fill migration-guide gaps for ccompiler / new_compiler / get_platform

  pypa/setuptools#5272 · opened on Jul 18, 2026 · Deprecate and remove direct usage of distutils

• Public API for compilers.C

  pypa/setuptools#5271 · opened on Jul 18, 2026 · Deprecate and remove direct usage of distutils
  1

• [debt] Remove distutils hack

  pypa/setuptools#5264 · opened on Jul 17, 2026 · Deprecate and remove direct usage of distutils
  2

• [BUG] Running pip 26.1.2 failed after installing legacy versions of setuptools

  pypa/setuptools#5263 · opened on Jul 16, 2026
  1

• Bump jaraco.context to 6.1.0 version to mitigate CVE-2026-23949

  pypa/setuptools#5235 · opened on May 28, 2026
  1

• Bump wheel to 0.46.2 version to mitigate CVE-2026-24049

  pypa/setuptools#5234 · opened on May 28, 2026
  1

• Keep Py3.9 support

  pypa/setuptools#5227 · opened on May 12, 2026