def __create_action(self, main_root):
		action_dir = os.path.join(main_root, 'action')
		safe_mkdir(action_dir)

		actions = set()
		for unit, param in self.__task.data['workflow'].items():
			actions.add(param['type'])
		self.__action_mgr.create_actions(actions, action_dir)
def test_impl(n):
            df = pd.DataFrame({'A': np.arange(n), 'B': np.random.ranf(n)})
            Ac = df.A.rolling(3).sum()
            return Ac.sum()