python选项- APScheduler &python

Question

我很难使用python-守护进程1.6和APScheduler来管理任务列表。

(调度程序需要以特定的时间-秒分辨率定期运行它们)

工作(直到按下Ctrl+C)，

from apscheduler.scheduler import Scheduler
import logging
import signal

def job_function():
    print "Hello World"

def init_schedule():
        logging.basicConfig(level=logging.DEBUG)
        sched = Scheduler()
        # Start the scheduler
        sched.start()

        return sched

def schedule_job(sched, function, periodicity, start_time):
        sched.add_interval_job(job_function, seconds=periodicity, start_date=start_time)

if __name__ == "__main__":

    sched = init_schedule()
    schedule_job(sched, job_function, 120, '2011-10-06 12:30:09')
    schedule_job(sched, job_function, 120, '2011-10-06 12:31:03')

    # APSScheduler.Scheduler only works until the main thread exits
    signal.pause()
    # Or
    #time.sleep(300)

示例输出：

具有0核心线程和20个最大线程的INFO:apscheduler.threadpool:Started线程池，INFO:apscheduler.scheduler:Scheduler为作业启动DEBUG:apscheduler.scheduler:Looking以运行DEBUG:apscheduler.scheduler:No作业；等待作业添加INFO:apscheduler.scheduler:Added作业"job_function (触发器: interval0:00:30，下一次运行于: 2011-10-06 18:30:39)“到作业存储”默认的“”INFO:apscheduler.scheduler:Added作业"job_function (触发器: interval0:00:30，下一次运行在: 2011-10-06 18:30:33 )到作业存储“默认”DEBUG:apscheduler.scheduler:Looking以运行DEBUG:apscheduler.scheduler:Next唤醒是在2011-10-06 18:30:33(在10.441128秒内)

带有python的，输出是空的.为什么DaemonContext没有正确地生成进程？

编辑-工作

在阅读python源代码之后，我将stdout和stderr添加到DaemonContext中，最终能够知道发生了什么。

def job_function():
    print "Hello World"
    print >> test_log, "Hello World"

def init_schedule():
    logging.basicConfig(level=logging.DEBUG)
    sched = Scheduler()
    sched.start()

    return sched

def schedule_job(sched, function, periodicity, start_time):
    sched.add_interval_job(job_function, seconds=periodicity, start_date=start_time)

if __name__ == "__main__":

    test_log = open('daemon.log', 'w')
    daemon.DaemonContext.files_preserve = [test_log]

    try:
           with daemon.DaemonContext():
                   from datetime import datetime
                   from apscheduler.scheduler import Scheduler
                   import signal

                   logging.basicConfig(level=logging.DEBUG)
                   sched = init_schedule()

                   schedule_job(sched, job_function, 120, '2011-10-06 12:30:09')
                   schedule_job(sched, job_function, 120, '2011-10-06 12:31:03')

                   signal.pause()

    except Exception, e:
           print e

Answer 1

我对python不太了解，但是没有定义job_function()中的job_function()。在引用init_schedule()的Schedule中也会出现同样的问题。