anchor.diff:    };
   
     python_fedora = buildPythonPackage (rec {
  -    name = "python-fedora-0.3.33";
  +    version = "0.5.5";
  +    name = "python-fedora-${version}";
       meta.maintainers = with maintainers; [ mornfall ];
   
       src = pkgs.fetchurl {
  -      url = "https://fedorahosted.org/releases/p/y/python-fedora/${name}.tar.gz";
  -      sha256 = "1g05bh7d5d0gzrlnhpnca7jpqbgs2rgnlzzbvzzxmdbmlkqi3mws";
  +      url = "https://pypi.python.org/packages/source/p/python-fedora/${name}.tar.gz";
  +      sha256 = "15m8lvbb5q4rg508i4ah8my872qrq5xjwgcgca4d3kzjv2x6fhim";
       };
       propagatedBuildInputs = with self; [ kitchen requests bunch paver ];
       doCheck = false;
  
positive.code:       substituteInPlace taskw/warrior.py \
          --replace '@@taskwarrior@@' '${pkgs.taskwarrior}'
      '';
  
      buildInputs = with self; [ nose pkgs.taskwarrior tox ];
      propagatedBuildInputs = with self; [ six dateutil pytz ];
  
negative.code:   };
  
    taskw = buildPythonPackage rec {
      version = "1.0.3";
      name = "taskw-${version}";
  
      src = pkgs.fetchurl {
        url = "https://pypi.python.org/packages/source/t/taskw/${name}.tar.gz";
        sha256 = "1fa7bv5996ppfbryv02lpnlhk5dra63lhlwrb1i4ifqbziqfqh5n";
      };
  
      patches = [ ../development/python-modules/taskw/use-template-for-taskwarrior-install-path.patch ];
  