anchor.diff:  
   buildPythonPackage rec {
     pname = "vt-py";
  -  version = "0.16.0";
  +  version = "0.17.1";
     format = "setuptools";
   
     disabled = pythonOlder "3.6";
  
positive.code:   meta = with lib; {
      description = "Python client library for VirusTotal";
      homepage = "https://virustotal.github.io/vt-py/";
      license = with licenses; [ asl20 ];
      maintainers = with maintainers; [ fab ];
    };
  
negative.code:     owner = "VirusTotal";
      repo = pname;
      rev = "refs/tags/${version}";
      hash = "sha256-yG0bKBn3pQWtxjuxkhKMMJW1nzbsk5y/9h2OOCkdch8=";
    };
  
    propagatedBuildInputs = [
  