anchor.diff:  
     django_1_6 = buildPythonPackage rec {
       name = "Django-${version}";
  -    version = "1.6";
  +    version = "1.6.3";
   
       src = fetchurl {
         url = "http://www.djangoproject.com/m/releases/1.6/${name}.tar.gz";
  -      sha256 = "165bd5wmv2an9h365d12k0112z0l375dxsy7dlxa7r8kyg4gvnfk";
  +      sha256 = "1wdqb2x0w0c10annbyz7rrrgrv9mpa9f8pz8006lf2csix33r7bd";
       };
   
       # error: invalid command 'test'
  
positive.code: 
    django_1_5 = buildPythonPackage rec {
      name = "Django-${version}";
      version = "1.5.5";
  
      src = fetchurl {
        url = "http://www.djangoproject.com/m/releases/1.5/${name}.tar.gz";
        sha256 = "07fp8ycx76q2nz96mxld1svvpfsrivjgpql0mr20r7gwzcfrrrka";
      };
  
      # error: invalid command 'test'
  
negative.code: 
    django_1_4 = buildPythonPackage rec {
      name = "Django-${version}";
      version = "1.4.11";
  
      src = fetchurl {
        url = "http://www.djangoproject.com/m/releases/1.4/${name}.tar.gz";
        sha256 = "00f2jlls3fhddrg7q4sjkwj6dmclh28n0vqm1m7kzcq5fjrxh6a8";
      };
  
      # error: invalid command 'test'
  