python定时任务调度库_apscheduler的使用（1）

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1、安装

$ pip install apscheduler

2、参考

api教程：http://apscheduler.readthedocs.org/en/latest/

demo下载：https://bitbucket.org/agronholm/apscheduler/downloads

3、代码描述

"""Demonstrates how to use the background scheduler to schedule a job that executes on 3 second intervals."""import timefrom apscheduler.schedulers.background import BackgroundSchedulerdef tick():    print('Tick! The time is: %s' %  time.strftime('%Y-%m-%d %X',time.localtime()))if __name__ == '__main__':    scheduler = BackgroundScheduler()    scheduler.add_job(tick, 'interval', seconds=30)    scheduler.start()    try:# This is here to simulate application activity (which keeps the main thread alive)        while True:            time.sleep(2)    except (KeyboardInterrupt, SystemExit):        scheduler.shutdown()

4、编译运行问题

如果遇到import error ......

一般是缺少依赖库导致，需要安装：pip install SQLAlchemy pip install pymongo

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