anchor.diff:        sha256 = "0f2lyi7xhvb60pvzx82dpc13ksdj5k92ww09czclkdz8k0dxa7hb";
       };
   
  -    propagatedBuildInputs = with pythonPackages; [
  +    propagatedBuildInputs = with self; [
         pyperclip
         urwid
       ];
  
positive.code:     };
    };
  
    update_checker = pythonPackages.buildPythonPackage rec {
      name = "update_checker-0.11";
  
      src = pkgs.fetchurl {
  
negative.code:     };
    };
  
    gmusicapi = with pkgs; buildPythonPackage rec {
      name = "gmusicapi-4.0.0";
  
      src = pkgs.fetchurl {
  