anchor.diff:  
   buildPythonPackage rec {
     pname = "hdate";
  -  version = "0.10.2";
  +  version = "0.10.3";
     disabled = pythonOlder "3.6";
     format = "pyproject";
   
  
positive.code:     owner = "py-libhdate";
      repo = "py-libhdate";
      rev = "v${version}";
      sha256 = "07b0c7q8w6flj4q72v58d3wymsxfp5qz8z97qhhc2977mjx5fsxd";
    };
  
    nativeBuildInputs = [
  
negative.code: 
    checkInputs = [
      pytestCheckHook
    ];
  
    postPatch = ''
  