anchor.diff:        sha256 = "ee6da1aaad8b08a74a33eb82264b1a2bf12a7d5aefc7e9d7d40a8f8fa9912e62";
       };
   
  -    # How do we run the tests?
  -    doCheck = false;
  +    checkPhase = "python test/test_argparse.py";
   
       meta = {
         homepage = http://code.google.com/p/argparse/;
  
positive.code:       license = "BSD-style";
      };
    });
  
  
    mock = buildPythonPackage (rec {
  
negative.code:   };
  
    hgsvn = buildPythonPackage rec {
      name = "hgsvn-0.1.9";
      src = fetchurl {
        url = "http://pypi.python.org/packages/source/h/hgsvn/${name}.tar.gz";
        md5 = "901f2fb04faad5a1e7cf84abfad564fd";
      };
  
      buildInputs = [ nose pkgs.subversion pkgs.mercurial ];
  
      meta = {
        description = "HgSVN";
  