anchor.diff:      twisted
       mock
       gevent
  -  ] ++ lib.optionals (!isPy3k) [ trollius ];
  +  ];
   
     propagatedBuildInputs = [
       six
  
positive.code:     tzlocal
      funcsigs
      setuptools
    ] ++ lib.optional (!isPy3k) futures;
  
    disabledTests = lib.optionals stdenv.isDarwin [
      "test_submit_job"
  
negative.code: , tornado
  , twisted
  , mock
  , gevent
  , six
  , pytz
  , tzlocal
  , funcsigs
  , setuptools
  , pythonOlder
  }:
  
  buildPythonPackage rec {
    pname = "APScheduler";
    version = "3.7.0";
    disabled = pythonOlder "3.7";
  
    src = fetchPypi {
      inherit pname version;
  