anchor.diff:    });
   
   
  +  subunit = buildPythonPackage rec {
  +    name = "subunit-${version}";
  +    version = "0.0.9";
  +
  +    src = fetchurl {
  +      url = "https://launchpad.net/subunit/trunk/0.0.9/+download/python-${name}.tar.gz";
  +      sha256 = "0g3bk8lfd52zjzg43h47h2kckchm3xyv1gcr85nca2i50rcrpj56";
  +    };
  +
  +    propagatedBuildInputs = [ testtools ];
  +
  +    meta = {
  +      description = "A streaming protocol for test results";
  +      homepage = https://launchpad.net/subunit;
  +      license = pkgs.lib.licenses.asl20;
  +    };
  +  };
  +
     # XXX: ValueError: ZIP does not support timestamps before 1980
     # svneverever =  buildPythonPackage rec {
     #   name = "svneverever-778489a8";
  
positive.code:       license = "BSD";
      };
    });
  
    zfec = buildPythonPackage (rec {
      name = "zfec-1.4.7";
  
negative.code:   };
  
  
    testtools = buildPythonPackage rec {
      name = "testtools-${version}";
      version = "0.9.24";
  
      src = fetchurl {
        url = "https://launchpad.net/testtools/0.9/0.9.24/+download/${name}.tar.gz";
        sha256 = "0mgkvd7c1aw34nlnz2nmll5k01aqhixxiikbs2nfyk3xfa4221x7";
      };
  
      meta = {
        description = "A set of extensions to the Python standard library's unit testing framework";
        homepage = http://pypi.python.org/pypi/testtools;
        license = pkgs.lib.licenses.mit;
      };
    };
  
  
    trac = buildPythonPackage {
      name = "trac-0.12.2";
  
  