python APScheduler 定时部署 框架

python APScheduler 定时调度 框架python APScheduler 框架,模仿Java的Quartz框架写的,强大给力。它的主页

python APScheduler 定时调度 框架

python APScheduler 框架,模仿Java的Quartz框架写的,强大给力。

它的主页是:http://packages.python.org/APScheduler/index.html

提问的地方:http://groups.google.com/group/apscheduler?(老外很认真的回答你的问题)

它的按照很简单:参考主要的install就可以了,就两三步

例子如下:

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from apscheduler.scheduler import Schedulerimport time# Start the schedulersched = Scheduler()def job_function():    print "Hello World"print 'start to sleep'print 'wake'sched.daemonic = Falsesched.add_cron_job(job_function,day_of_week='mon-fri', hour='*', minute='0-59',second='*/5')sched.start()

?这个是最简单的例子(目前我初学,呵呵)

这里要提到的是:

apscheduler会创建一个线程,这个线程默认是daemon=True,也就是默认的是线程守护的。

在上面的代码里面,要是不加上sched.daemonic=False的话,这个脚本就不会运行。

因为上面的脚本要是没有sched.daemonic=False的话,它会创建一个守护线程。这个过程中,会创建scheduler的实例。但是由于脚本很小,运行速度很快,主线程mainthread会马上结束,而此时定时任务的线程还没来得及执行,就跟随主线程结束而结束了。(守护线程和主线程之间的关系决定的)。要让脚本运行正常,必须设置该脚本为非守护线程。sched.daemonic=False

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补充:

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#-*-coding:utf-8-*-from apscheduler.scheduler import Schedulerdef job_function(a):    print aif __name__ == '__main__':    hello = 'hello world'    sched = Scheduler(daemonic=False) # 注意这里,要设置 daemonic=False    sched.add_cron_job(job_function, day_of_week='mon-fri', hour='*', minute='0-59', second='*/5', args=[hello]) # args=[] 用来给job函数传递参数    sched.start()# ----------- 源码  -------------------------------   #   def add_cron_job(self, func, year=None, month=None, day=None, week=None,#                    day_of_week=None, hour=None, minute=None, second=None,#                    start_date=None, args=None, kwargs=None, **options):#       """#       Schedules a job to be completed on times that match the given#       expressions.##       :param func: callable to run#       :param year: year to run on#       :param month: month to run on#       :param day: day of month to run on#       :param week: week of the year to run on#       :param day_of_week: weekday to run on (0 = Monday)#       :param hour: hour to run on#       :param second: second to run on#       :param args: list of positional arguments to call func with#       :param kwargs: dict of keyword arguments to call func with#       :param name: name of the job#       :param jobstore: alias of the job store to add the job to#       :param misfire_grace_time: seconds after the designated run time that#           the job is still allowed to be run#       :return: the scheduled job#       :rtype: :class:`~apscheduler.job.Job`#       """#
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