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