diff options
Diffstat (limited to 'nixpkgs/pkgs/development/python-modules/pytest/4.nix')
| -rw-r--r-- | nixpkgs/pkgs/development/python-modules/pytest/4.nix | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/pytest/4.nix b/nixpkgs/pkgs/development/python-modules/pytest/4.nix index fd6d3507afb8..0a0ae571ba01 100644 --- a/nixpkgs/pkgs/development/python-modules/pytest/4.nix +++ b/nixpkgs/pkgs/development/python-modules/pytest/4.nix @@ -43,6 +43,19 @@ buildPythonPackage rec { } preDistPhases+=" pytestcachePhase" + + # pytest generates it's own bytecode files to improve assertion messages. + # These files similar to cpython's bytecode files but are never laoded + # by python interpreter directly. We remove them for a few reasons: + # - files are non-deterministic: https://github.com/NixOS/nixpkgs/issues/139292 + # (file headers are generatedt by pytest directly and contain timestamps) + # - files are not needed after tests are finished + pytestRemoveBytecodePhase () { + # suffix is defined at: + # https://github.com/pytest-dev/pytest/blob/4.6.11/src/_pytest/assertion/rewrite.py#L32-L47 + find $out -name "*-PYTEST.py[co]" -delete + } + preDistPhases+=" pytestRemoveBytecodePhase" ''; meta = with lib; { |