from sched import scheduler, time task_scheduler = scheduler(time.time, time.sleep) def do_task(*args, **kwargs): print("{0}: args={1}, kwargs={2}".format(time.time(), args, kwargs)) task_scheduler.enter(2, 1, do_task, argument=("#1",)) task_scheduler.enter(5, 1, do_task, argument=("#2",), kwargs={"ABC": 123}) task_scheduler.enter(8, 1, do_task, argument=("#3",)) task_scheduler.run()