anchor.diff:  
   buildPythonApplication rec {
     pname = "FlexGet";
  -  version = "2.17.20";
  +  version = "2.20.17";
   
     src = fetchPypi {
       inherit pname version;
  -    sha256 = "a09ef9482ed54f7e96eb8b4d08c59687c5c43a3341c9d2675383693e6c3681c3";
  +    sha256 = "ed021d8d5c10555dad8dc1cb93c012e17b541fc25fc122b7ca76bb7e53fe82b3";
     };
   
     postPatch = ''
  -    # build for the correct python version
  -    substituteInPlace setup.cfg --replace $'[bdist_wheel]\npython-tag = py27' ""
       # remove dependency constraints
       sed 's/==\([0-9]\.\?\)\+//' -i requirements.txt
     '';
  
positive.code: # -- Mic92
  
  let
    python' = python36.override { inherit packageOverrides; };
  
    packageOverrides = self: super: {
      guessit = super.guessit.overridePythonAttrs (old: rec {
  
negative.code:     beautifulsoup4 html5lib
      PyRSS2Gen pynzb rpyc jinja2
      requests dateutil jsonschema
      pathpy guessit rebulk APScheduler
      terminaltables colorclass
      cherrypy flask flask-restful
      flask-restplus flask-compress
      flask_login flask-cors
      pyparsing zxcvbn-python future
      progressbar
      # Optional requirements
      deluge-client
      # Plugins
  