anchor.diff:    };
   
     rsa = buildPythonPackage rec {
  -    name = "rsa-3.1.2";
  -
  -    src = pkgs.fetchurl {
  -      url = "https://bitbucket.org/sybren/python-rsa/get/version-3.1.2.tar.bz2";
  -      sha256 = "0ag2q4gaapi74x47q74xhcjzs4b7r2bb6zrj2an4sz5d3yd06cgf";
  +    name = "rsa-3.1.4";
  +
  +    src = pkgs.fetchurl {
  +      url = "https://pypi.python.org/packages/source/r/rsa/${name}.tar.gz";
  +      sha256 = "1842ghkkimzf4fi3np4vwbwnsriv4d9malp1sbnv2xn26rcv1c72";
       };
   
       buildInputs = with self; [ self.pyasn1 ];
  
positive.code:   };
  
    goobook = buildPythonPackage rec {
      name = "goobook-1.6";
      disabled = isPy3k;
  
      src = pkgs.fetchurl {
        url    = "https://pypi.python.org/packages/source/g/goobook/${name}.tar.gz";
        sha256 = "05vpriy391l5i05ckl5ja5bswqyvl3rwrbmks9pi46w1813j7p5z";
      };
  
      buildInputs = with self; [ ];
  
negative.code:       platforms   = platforms.unix;
      };
  
      propagatedBuildInputs = with self; [ oauth2client gdata simplejson httplib2 keyring six rsa ];
    };
  
    google_api_python_client = buildPythonPackage rec {
  