Issues

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

  enhancementNeeds Triage
  pypa/setuptools#5341 · Filter by author a-habib opened on Oct 3, 2026

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

  pypa/setuptools#5338 · Filter by author feiiiiii5 opened on Sep 30, 2026

• [BUG] _distutils_hack is disabled in CPython source tree

  bugNeeds Triage
  pypa/setuptools#5335 · Filter by author vstinner opened on Sep 24, 2026

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

  pypa/setuptools#5328 · Filter by author jaraco opened on Sep 8, 2026

• Setuptool

  distutils deprecationNeeds Triage
  pypa/setuptools#5322 · Filter by author vien97 opened on Sep 1, 2026

• [FR] Support for metadata 2.6 via PEP 808

  enhancementNeeds Triage
  pypa/setuptools#5304 · Filter by author Houbein 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 · Filter by author MohammedAlkindi opened on Aug 15, 2026

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

  bugNeeds Triage
  pypa/setuptools#5296 · Filter by author berland opened on Aug 10, 2026

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

  breaking-change-feedbackdependenciesdistutils deprecationupstream
  pypa/setuptools#5294 · Filter by author thellert opened on Aug 9, 2026
  1

• test_apply_pyproject_equivalent_to_setuptcfg is flaky

  pypa/setuptools#5284 · Filter by author jaraco opened on Jul 31, 2026
  2

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

  bugNeeds Triage
  pypa/setuptools#5275 · Filter by author swt2c opened on Jul 19, 2026

• Stand up standalone compilers.C distribution

  pypa/setuptools#5274 · Filter by author jaraco 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 · Filter by author jaraco 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 · Filter by author jaraco opened on Jul 18, 2026 · Deprecate and remove direct usage of distutils

• Public API for compilers.C

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

• [debt] Remove distutils hack

  pypa/setuptools#5264 · Filter by author jaraco 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

  Waiting User Feedback
  pypa/setuptools#5263 · Filter by author Chao-Freeman opened on Jul 16, 2026
  1

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

  pypa/setuptools#5235 · Filter by author AngAnda opened on May 28, 2026
  1

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

  pypa/setuptools#5234 · Filter by author AngAnda opened on May 28, 2026
  1

• Use Trusted Publishing to upload to PyPI

  pypa/setuptools#5231 · Filter by author nsoranzo opened on May 21, 2026
  1

• Keep Py3.9 support

  pypa/setuptools#5227 · Filter by author scoder opened on May 12, 2026

• [FR] Publish the pyproject.toml specification as a JSON schema

  enhancementNeeds Triage
  pypa/setuptools#5218 · Filter by author hunterhogan opened on Apr 11, 2026
  2

• [Docs] Missing external copyright notices for code copies

  documentationNeeds Triage
  pypa/setuptools#5215 · Filter by author stefan6419846 opened on Apr 8, 2026

• [FR] Support building extensions and wheels with the abi3t ABI (PEP 803)

  enhancementNeeds Triage
  pypa/setuptools#5205 · Filter by author ngoldbaum opened on Apr 1, 2026
  1

• [BUG] Inconsistent behaviour of providing extension without sources between platforms

  Needs Discussion
  pypa/setuptools#5204 · Filter by author Andrej730 opened on Apr 1, 2026
  4