UserWarning: Using settings.DEBUG le ads to a memory leak, never use this setting in production environments! leak, never use this setting in production environments!''') code example

Example: UserWarning: Using settings.DEBUG le ads to a memory leak, never use this setting in production environments! leak, never use this setting in production environments!''')

#导包
from celery.task.schedules import crontab 
from celery.decorators import periodic_task

#利用celery 的定时任务 celery的crontab表达式
@periodic_task(run_every=crontab(hour=20))
def some_task():
    #实例化一个对象
    sendmail = SendMail('每天必发','晚安',['[email protected]'],DEFAULT_FROM_EMAIL)
    status = sendmail.do_send_mail()
    if status:
        print('发送邮件')
    else:
        print('发送失败')

    print('执行完毕')
    return True
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