anchor.diff:  
     meta = with lib; {
       description = "Python cross-version byte-code disassembler and marshal routines";
  -    homepage = "https://github.com/rocky/python-xdis/";
  +    homepage = "https://github.com/rocky/python-xdis";
       license = licenses.gpl2Plus;
       maintainers = with maintainers; [ ];
     };
  
positive.code:   src = fetchFromGitHub {
      owner = "rocky";
      repo = "python-xdis";
      # Support for later Python releases is missing in 6.0.3
      rev = "f888df7df5cb8839927e9187c258769cc77fb7a3";
      hash = "sha256-V1ws5GibRkutFRNcjlP7aW+AshSyWavXIxuwznVbRlU=";
    };
  
    propagatedBuildInputs = [
  
negative.code: 
  buildPythonPackage rec {
    pname = "xdis";
    version = "6.0.4";
    format = "setuptools";
  
    disabled = pythonOlder "3.6";
  