anchor.diff:      };
     };
   
  +  pathtools = buildPythonPackage rec {
  +    name = "pathtools-${version}";
  +    version = "0.1.2";
  +
  +    src = pkgs.fetchurl {
  +      url = "https://pypi.python.org/packages/source/p/pathtools/${name}.tar.gz";
  +      sha256 = "1h7iam33vwxk8bvslfj4qlsdprdnwf8bvzhqh3jq5frr391cadbw";
  +    };
  +
  +    meta = {
  +      description = "Pattern matching and various utilities for file systems paths";
  +      homepage = http://github.com/gorakhargosh/pathtools;
  +      license = licenses.mit;
  +      maintainers = [ maintainers.goibhniu ];
  +    };
  +  };
   
     paver = buildPythonPackage rec {
       version = "1.2.2";
  
positive.code:     };
    };
  
    itsdangerous = buildPythonPackage rec {
      name = "itsdangerous-0.24";
  
  
negative.code:   };
  
    argh = buildPythonPackage rec {
      name = "argh-0.26.1";
  
      src = pkgs.fetchurl {
        url = "http://pypi.python.org/packages/source/a/argh/${name}.tar.gz";
        sha256 = "1nqham81ihffc9xmw85dz3rg3v90rw7h0dp3dy0bh3qkp4n499q6";
      };
  
      checkPhase = ''
        export LANG="en_US.UTF-8"
        py.test
      '';
  
      buildInputs = with self; [ pytest py mock pkgs.glibcLocales ];
  