anchor.diff:    };
   
   
  +  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";
   
  
positive.code:   });
  
  
    # XXX: ValueError: ZIP does not support timestamps before 1980
    # svneverever =  buildPythonPackage rec {
    #   name = "svneverever-778489a8";
  
negative.code:       license = "BSD";
      };
    });
  
  
    zconfig = buildPythonPackage rec {
      name = "zconfig-${version}";
      version = "2.9.3";
  
      src = fetchurl {
        url = "http://pypi.python.org/packages/source/Z/ZConfig/ZConfig-${version}.tar.gz";
        md5 = "2c5f73c216140a705be3d9c44b988722";
      };
  
      propagatedBuildInputs = [ zope_testrunner ];
  
      meta = {
        description = "Structured Configuration Library";
        homepage = http://pypi.python.org/pypi/ZConfig;
        license = "ZPL";
      };
    };
  
  
    zc_lockfile = buildPythonPackage rec {
      name = "zc_lockfile-${version}";
      version = "1.0.2";
  
      src = fetchurl {
        url = "http://pypi.python.org/packages/source/z/zc.lockfile/zc.lockfile-${version}.tar.gz";
        md5 = "f099d4cf2583a0c7bea0146a44dc4d59";
      };
  
      meta = {
        description = "Inter-process locks";
        homepage =  http://www.python.org/pypi/zc.lockfile;
        license = "ZPL";
      };
    };
  
  
    zdaemon = buildPythonPackage rec {
      name = "zdaemon-${version}";
      version = "3.0.5";
  
      src = fetchurl {
        url = "http://pypi.python.org/packages/source/z/zdaemon/${name}.tar.gz";
        md5 = "975f770544bb4352c5cf32fec22e63c9";
      };
  
      propagatedBuildInputs  = [ zconfig ];
  
      meta = {
        description = "A daemon process control library and tools for Unix-based systems";
        homepage = http://pypi.python.org/pypi/zdaemon;
        license = "ZPL";
      };
    };
  
  
    zfec = buildPythonPackage (rec {
      name = "zfec-1.4.7";
  