python3Packages.ffmpy: unbreak build with uv-build >=0.8.0 (#426347)

    hash = "sha256-U20mBg+428kkka6NY9qc7X8jH8A5bKa++g2+PTn/MYg=";

  };

  postPatch = ''

    # default to store ffmpeg

  postPatch =

    # Default to store ffmpeg.

    ''

      substituteInPlace ffmpy/ffmpy.py \

        --replace-fail \

          'executable: str = "ffmpeg",' \

        'executable: str = "${ffmpeg-headless}/bin/ffmpeg",'

          'executable: str = "${lib.getExe ffmpeg-headless}",'

    ''

    # The tests test a mock that does not behave like ffmpeg. If we default to the nix-store ffmpeg they fail.

    + ''

      for fname in tests/*.py; do

        echo >>"$fname" 'FFmpeg.__init__.__defaults__ = ("ffmpeg", *FFmpeg.__init__.__defaults__[1:])'

      done

    ''

    # uv-build in nixpkgs is now at 0.8.0, which otherwise breaks the constraint set by the package.

    + ''

      substituteInPlace pyproject.toml \

        --replace-fail 'requires = ["uv_build>=0.7.9,<0.8.0"]' 'requires = ["uv_build>=0.7.9,<0.9.0"]'

    '';

  pythonImportsCheck = [ "ffmpy" ];

  nativeBuildInputs = [ uv-build ];

  build-system = [ uv-build ];

  nativeCheckInputs = [

    pytestCheckHook