如何安排一个函数在Flask上每小时运行一次? [英] How to schedule a function to run every hour on Flask?

问题描述

我有一个Flask虚拟主机，无法访问cron命令.

I have a Flask web hosting with no access to cron command.

我如何每小时执行一些Python函数?

How can I execute some Python function every hour?

推荐答案

您可以使用 APScheduler 程序包(v3.5.3)的noreferrer> BackgroundScheduler() :

You can use BackgroundScheduler() from APScheduler package (v3.5.3):

import time
import atexit

from apscheduler.schedulers.background import BackgroundScheduler


def print_date_time():
    print(time.strftime("%A, %d. %B %Y %I:%M:%S %p"))


scheduler = BackgroundScheduler()
scheduler.add_job(func=print_date_time, trigger="interval", seconds=3)
scheduler.start()

# Shut down the scheduler when exiting the app
atexit.register(lambda: scheduler.shutdown())

请注意，当Flask处于调试模式时，将启动其中两个调度程序.有关更多信息，请查看此问题.

Note that two of these schedulers will be launched when Flask is in debug mode. For more information, check out this question.

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