anchor.diff:  
   
     django_1_3 = buildPythonPackage rec {
  -    name = "Django-1.3.2";
  +    name = "Django-1.3.3";
   
       src = fetchurl {
         url = "http://www.djangoproject.com/m/releases/1.3/${name}.tar.gz";
  -      sha256 = "0r6pdm33x96aba9x36jvqpkh2bf1zixnzvr12mcc8qq8wc7hii3j";
  +      sha256 = "0snlrcvk92qj1v0n9dpycn6sw56w4zns4mpc30837q6yi7ylrx4f";
       };
   
       doCheck = false;
  
positive.code: 
  
    djblets = buildPythonPackage rec {
      name = "Djblets-0.6.19";
  
      src = fetchurl {
        url = "http://downloads.reviewboard.org/releases/Djblets/0.6/${name}.tar.gz";
        sha256 = "1hhvpi81yknvlaazq1cpgamp9vf3x1fcr0ba64q3j2yz1kgin1i8";
      };
  
      propagatedBuildInputs = [ pkgs.pil django_1_3 ];
  
negative.code: 
  
    reviewboard = buildPythonPackage rec {
      name = "ReviewBoard-1.6.13";
  
      src = fetchurl {
        url = "http://downloads.reviewboard.org/releases/ReviewBoard/1.6/${name}.tar.gz";
        sha256 = "06q9vgvmmwiyqj6spw6sbhrcxwds02pvqir50psbpps74nxn2mph";
      };
  
      propagatedBuildInputs =
  