anchor.diff:        sha256 = "0bhiyx41kilvy04cgjbvjy2r4b6l7zz31fbrg3l6lvnqm26nihb0";
       };
   
  -    buildInputs = [ pkgs.setuptools ];
  +    buildInputs = [ pkgs.setuptools ] ++
  +                  (if python.majorVersion == "2.6" then [ argparse ] else []);
   
       meta = {
         description = "automatically generated zsh completion function for Python's option parser modules";
  
positive.code:     };
  
      buildInputs = [ nose mox ];
  
      propagatedBuildInputs = [ gflags sqlalchemy webob routes eventlet ];
  
  
negative.code:     '';
  
      # For some reason "python setup.py test" doesn't work with Python 2.6.
      doCheck = python.majorVersion != "2.6";
  
      meta = {
        description = "Simple Python implementation of the Git file formats and protocols.";
  