anchor.diff:      propagatedBuildInputs = [astng];
     };
   
  +  
     pymacs = pkgs.stdenv.mkDerivation rec {
       version = "v0.24-beta2";
       name = "Pymacs-${version}";
  
positive.code:     };
    };
  
    dulwich = buildPythonPackage rec {
      name = "dulwich-0.8.1";
  
  
negative.code:         };
        };
  
        
    pyreport = buildPythonPackage (rec {
      name = "pyreport-0.3.4c";
  
  