anchor.diff:      ${python}/bin/twine upload --username $PYPI_USERNAME --password $PYPI_PASSWORD ${pythonDist}/*
     '';
   
  -  # For some reason this function doesn't work with --username and --password params
     publishPypiTest = pkgs.writeShellScriptBin "script.sh" ''
       ${python}/bin/twine upload --username $PYPI_TEST_USERNAME --password $PYPI_TEST_PASSWORD --repository testpypi ${pythonDist}/*
     '';
  
positive.code:       source $stdenv/setup
        export SOURCE_DATE_EPOCH=315532800
        cp -R --no-preserve=mode,ownership $pythonSrc/* .
        python setup.py sdist bdist_wheel
        mkdir $out
        cp dist/* $out
      '';
  
negative.code: 
    server = pkgs.writeShellScriptBin "script.sh" ''
      cd ${website}
      ${python}/bin/python3 -m http.server
    '';
  
    # ------------------------------------------------------------------------------------------
  