anchor.diff:  
     doCheck = false;
   
  -  meta = with stdenv.lib; {
  +  meta = with lib; {
       description = "A library for guessing information from video filenames";
       homepage = https://pypi.python.org/pypi/guessit;
       license = licenses.lgpl3;
  
positive.code: { stdenv
  , buildPythonPackage
  , fetchPyPi
  
  , babelfish
  , pytestrunner
  
negative.code: }:
  
  let
    inherit (lib)
      optionals;
  
    version = "2.1.1";
  in
  buildPythonPackage rec {
    name = "guessit-${version}";
  