anchor.diff:    buildbot-pkg = pythonPackages.buildPythonPackage rec {
       name = "${pname}-${version}";
       pname = "buildbot-pkg";
  -    version = "0.9.9.post2";
  +    version = "0.9.11";
   
       src = pythonPackages.fetchPypi {
         inherit pname version;
  -      sha256 = "1h24fzyr4kfm1nb2627hgg9nl5mwv1gihc3f2wb5000gxmjdasg8";
  +      sha256 = "1gh7wj9z7n7yfs219jbv9pdd2w8dwj6qpa090ffjkfpgd3xana33";
       };
   
       propagatedBuildInputs = with pythonPackages; [ setuptools ];
  
positive.code:     };
    };
  
  }
  
negative.code:   grid-view = pythonPackages.buildPythonPackage rec {
      name = "${pname}-${version}";
      pname = "buildbot-grid-view";
      version = buildbot-pkg.version;
  
      src = pythonPackages.fetchPypi {
        inherit pname version;
        sha256 = "0aw1073xq549q5jkjk31zhqpasp8jiy4gch0fjyw8qy0dax8hc7r";
      };
  
      propagatedBuildInputs = with pythonPackages; [ buildbot-pkg ];
  