This issue tracks the transition from overridePythonAttrs to overrideAttrs for Python package overriding and the adoption of finalAttrs.

Preliminary works

• buildPython*: minor changes to prepare for restructuring #378566
  • Fixup: buildPythonPackage: chore: remove unnecessary set update for passthru value #471681
• buildPython*: restructure in preparation for fixed-point argument support and overridePythonAttrs deprecation #375921
• treewide (Python packages): Use the buildPythonPackage-provided locale specification whenever appropriate #383766

finalAttrs referencing

Generic finalAttrs referencing

• buildPythonPackage: Enable direct attribute overriding via overrideAttrs (the non-staging ones) #376372
• buildPython*: make name-related attributes overridable via overrideAttrs #376714
• buildPython*: Enable direct attribute overriding via overrideAttrs (the staging ones) #377057

Test arguments handling

• buildPython*: pass check-related args whenever specified #376060
• treewide (Python packages): Use the buildPythonPackage-provided locale specification whenever appropriate #383766
• buildPythonPackage: redirect pre/postCheck to pre/postInstallCheck #379637
• buildPythonPackage , buildPythonApplication: take installCheck-related attributes directly #324124
  • Alternative: <pkg>.overridePythonAttrs: take both checkPhase and installCheckPhase and pass installCheckPhase #469804

overrideAttrs fixing and adoption

Incorporating overridePythonAttrs with overrideAttrs

• makeOverridablePythonPackage: simplify implementation and make compatible with <pkg>.overrideAttrs #267296
• buildPythonPackage: preserve the disabled effect after <pkg>.overrideAttrs #376419

Deprecating overridePythonAttrs and its test argument mapping in favour of overrideAttrs

• TBD

Fixed-point arguments support

stdenv specification via <pkg>.override

• buildPython*: bring back buildPython*.override #366593
  • Fixup: buildPython*: unconditionally add .override  #455362
• Enable stdenv customization through (buildPython*.override { inherit stdenv; }) #271762
• tests.overriding: buildPythonPackage: test stdenv customisation via buildPythonPackage.override #455462
• buildPython*: simplify overrideStdenvCompat and add nested-override support #455764
• buildPython*: extend overrideStdenvCompat to fixed-point arguments #477208

Transitioning stdenv specification to <pkg>.override

• treewide: use overlays to pass a custom stdenv to buildPythonPackage / bulidPythonApplication #476401

Taking fixed-point arguments

• buildPython*: support fixed-point arguments #271387
• doc/python: document fixed-point arguments (#271387) #477149

Transitioning to fixed-point arguments

• treewide: move python packages I maintain to finalAttrs #476981