anchor.diff:      mock
     ] ++ lib.optional (!isPy3k) pysqlite;
   
  -  pytestFlagsArray = [ "-n auto" ];
  +  pytestFlagsArray = [
  +    "-n auto"
  +  ];
   
     postInstall = ''
       sed -e 's:--max-worker-restart=5::g' -i setup.cfg
  
positive.code: { stdenv, lib, fetchPypi, buildPythonPackage, isPy3k, isPy35, fetchpatch
  , mock
  , pysqlite ? null
  , pytestCheckHook
  
negative.code:   dontUseSetuptoolsCheck = true;
  
    # disable mem-usage tests on mac, has trouble serializing pickle files
    disabledTests = lib.optionals stdenv.isDarwin [
      "MemUsageWBackendTest"
      "MemUsageTest"
    ];
  
    meta = with lib; {
      homepage = "http://www.sqlalchemy.org/";
  