anchor.diff:  
       meta = {
         maintainers = [ stdenv.lib.maintainers.iElectric ];
  +    };
  +  };
  +
  +  roman = buildPythonPackage rec {
  +    version = "2.0.0";
  +    name = "roman-${version}";
  +
  +    src = pkgs.fetchurl {
  +      url = "https://pypi.python.org/packages/source/r/roman/${name}.zip";
  +      md5 = "aa71d131eec16d45c030fd06a27c9d17";
  +    };
  +
  +    buildInputs = with self; with pkgs; [ ];
  +
  +    propagatedBuildInputs = with self; [ ];
  +
  +    meta = {
  +      description = "Integer to Roman numerals converter";
  +      homepage = "https://pypi.python.org/pypi/roman";
  +      license = stdenv.lib.licenses.psfl;
       };
     };
   
  
positive.code:     meta = {
        homepage = https://github.com/pnpnpn/retry-decorator;
        license = stdenv.lib.licenses.mit;
      };
    };
  
  
negative.code:     };
    };
  
    sqlite3dbm = buildPythonPackage rec {
      name = "sqlite3dbm-0.1.4";
      disabled = isPy3k;
  
      src = pkgs.fetchurl {
        url = "http://pypi.python.org/packages/source/s/sqlite3dbm/${name}.tar.gz";
        md5 = "fc2f8fb09a4bbc0260b97e835b369184";
      };
  
      buildInputs = with self; [ modules.sqlite3 ];
  
      meta = with stdenv.lib; {
        description = "sqlite-backed dictionary";
        homepage = "http://github.com/Yelp/sqlite3dbm";
        license = stdenv.lib.licenses.asl20;
      };
    };
  
    pgpdump = self.buildPythonPackage rec {
      name = "pgpdump-1.5";
  
  