anchor.diff:        ${python}/bin/${python.executable} setup.py install \
           --install-lib=$out/lib/${python.libPrefix}/site-packages \
           --prefix="$out"
  -    ''; 
  +    '';
   
       meta = with stdenv.lib; {
         homepage = https://github.com/Groundworkstech/pybfd;
  
positive.code: 
      buildInputs = with self; [ nose mock ];
      propagatedBuildInputs = with self; [
        jinja2 pyyaml redis requests pagerduty 
        python_simple_hipchat pushbullet
      ];
  
  
negative.code:     name = "poppler-qt4-${version}";
      version = "0.18.1";
      disabled = isPy3k || isPyPy;
  
      src = pkgs.fetchurl {
        url = "https://pypi.python.org/packages/source/p/python-poppler-qt4/" +
              "python-poppler-qt4-${version}.tar.gz";
  