安装

pip install schedule

官方文档

https://schedule.readthedocs.io/en/stable/

案例

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import schedule
import time


def job(text=""):
    print(text, "I'm working...")


schedule.every().seconds.do(job, "每秒一次")
schedule.every(5).seconds.do(job, "五秒一次")
schedule.every(10).minutes.do(job, "10分钟一次")
schedule.every().hour.do(job, "1小时一次")
schedule.every().day.at("10:30").do(job)
schedule.every(5).to(10).days.do(job)
schedule.every().monday.do(job)
schedule.every().wednesday.at("13:15").do(job)

while True:
    schedule.run_pending()
    time.sleep(1)

执行多个任务

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# 如果不用多线程,则定时任务会不准确,因为任务会按照顺序执行,如果上一个任务比较耗时,则下一个任务就会"延误"
import datetime
import schedule
import threading
import time


def job1():
    print("I'm working for job1")
    time.sleep(2)
    print("job1:", datetime.datetime.now())


def job2():
    print("I'm working for job2")
    time.sleep(2)
    print("job2:", datetime.datetime.now())


def job1_task():
    threading.Thread(target=job1).start()


def job2_task():
    threading.Thread(target=job2).start()


def run():
    schedule.every(10).seconds.do(job1_task)
    schedule.every(10).seconds.do(job2_task)

    while True:
        schedule.run_pending()
        time.sleep(1)


if __name__ == '__main__':
    run()