anchor.diff:    version = "13.0.1";
     format = "setuptools";
   
  -  disabled = !isPy3k;
  +  disabled = pythonOlder "3.7";
   
     src = fetchPypi {
       pname = "PyChromecast";
       inherit version;
  -    sha256 = "sha256-IDqvA3r7rKEnY6OpEZKd0lsKinse4A0BDTQ5vTGpglI=";
  +    hash = "sha256-IDqvA3r7rKEnY6OpEZKd0lsKinse4A0BDTQ5vTGpglI=";
     };
   
     postPatch = ''
  
positive.code:   meta = with lib; {
      description = "Library for Python to communicate with the Google Chromecast";
      homepage = "https://github.com/home-assistant-libs/pychromecast";
      license = licenses.mit;
      maintainers = with maintainers; [ abbradar ];
      platforms = platforms.unix;
  
negative.code: , buildPythonPackage
  , casttube
  , fetchPypi
  , pythonOlder
  , protobuf
  , requests
  , zeroconf
  