anchor.diff:  { lib
   , buildPythonPackage
   , fetchFromGitHub
  +, cryptography
   , netifaces
   , voluptuous
   , pyyaml
  
positive.code:     owner = "XKNX";
      repo = pname;
      rev = version;
      sha256 = "sha256-LJ7MmKCWx+n7caud0pN4+7f9H4XzwuAAn9u86X/FACo=";
    };
  
    propagatedBuildInputs = [
      voluptuous
      netifaces
      pyyaml
    ];
  
    checkInputs = [
  
negative.code: 
  buildPythonPackage rec {
    pname = "xknx";
    version = "0.20.1";
    format = "setuptools";
  
    disabled = pythonOlder "3.8";
  