anchor.diff:        maintainers = [ maintainers.goibhniu ];
       };
     };
  +
  +  watchdog = buildPythonPackage rec {
  +    name = "watchdog-${version}";
  +    version = "0.8.3";
  +
  +    propagatedBuildInputs = with self; [ argh pathtools pyyaml ];
  +
  +    doCheck = false;
  +
  +    src = pkgs.fetchurl {
  +      url = "https://pypi.python.org/packages/source/w/watchdog/${name}.tar.gz";
  +      sha256 = "0qj1vqszxwfx6d1s66s96jmfmy2j94bywxiqdydh6ikpvcm8hrby";
  +    };
  +
  +    meta = {
  +      description = "Python API and shell utilities to monitor file system events";
  +      homepage = http://github.com/gorakhargosh/watchdog;
  +      license = licenses.asl20;
  +      maintainers = [ maintainers.goibhniu ];
  +    };
  +  };
  +
   
     zope_tales = buildPythonPackage rec {
       name = "zope.tales-4.0.2";
  
positive.code:     };
    };
  
    itsdangerous = buildPythonPackage rec {
      name = "itsdangerous-0.24";
  
  
negative.code:     };
    };
  
    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";
  