anchor.diff:    };
   
     httplib2 = buildPythonPackage rec {
  -    name = "httplib2-0.9";
  +    name = "httplib2-0.9.1";
   
       src = pkgs.fetchurl {
         url = "https://pypi.python.org/packages/source/h/httplib2/${name}.tar.gz";
  -      sha256 = "1asi5wpncnc6ki3bz33mhb9xh2lrkb24y4qng8bmqnczdmm8rsir";
  +      sha256 = "1xc3clbrf77r0600kja71j7hk1218sjiq0gfmb8vjdajka8kjqxw";
       };
   
       meta = {
  
positive.code:   };
  
    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";
      };
  
      buildInputs = with self; [ self.pyasn1 ];
  
negative.code:   };
  
    goobook = buildPythonPackage rec {
      name = "goobook-1.9";
      disabled = isPy3k;
  
      src = pkgs.fetchurl {
        url    = "https://pypi.python.org/packages/source/g/goobook/${name}.tar.gz";
        sha256 = "02xmq8sjavza17av44ks510934wrshxnsm6lvhvazs45s92b671i";
      };
  
      buildInputs = with self; [ ];
  