Django的作业调度

我需要在我们的django应用程序中实现一个预定的任务。数据库 schedule 似乎是一个很好的候选人的工作,但当运行它作为一个Django项目的一部分,它似乎没有产生预期的效果。

具体来说,作为一个独立的程序,这很好地工作:

import schedule
import time

import logging
log = logging.getLogger(__name__)

def handleAnnotationsWithoutRequests(settings):
    '''
    From settings passed in, grab job-ids list
    For each job-id in that list, perform annotation group/set logic [for details, refer to handleAnnotationsWithRequests(requests, username) 
                                                                     sans requests, those are obtained from db based on job-id ]
    '''
    print('Received settings: {}'.format(str(settings)))

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

#schedule.every(3).seconds.do(job)
#schedule.every(2).seconds.do(handleAnnotationsWithoutRequests, settings={'a': 'b'})
invoc_time = "10:33"
schedule.every().day.at(invoc_time).do(handleAnnotationsWithoutRequests, settings={'a': 'b'})

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

但在Django上下文中运行的这个(等效的)代码不会导致调用。

def handleAnnotationsWithoutRequests(settings):
    '''
    From settings passed in, grab job-ids list
    For each job-id in that list, perform annotation group/set logic [for details, refer to handleAnnotationsWithRequests(requests, username) 
                                                                     sans requests, those are obtained from db based on job-id ]
    '''
    log.info('Received settings: {}'.format(str(settings)))

def doSchedule(settings):
    '''
    with scheduler library
    Based on time specified in settings, invoke .handleAnnotationsWithoutRequests(settings)
    '''
    #settings will need to be reconstituted from the DB first
    #settings = {}
    invocationTime = settings['running_at']
    import re
    invocationTime = re.sub(r'([AaPp][Mm])', "", invocationTime)
    log.info("Invocation time to be used: {}".format(invocationTime))
    schedule.every().day.at(invocationTime).do(handleAnnotationsWithoutRequests, settings=settings)

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

所以日志来自 handleAnnotationsWithoutRequests() 不显示在控制台上。

是 this scheduling library 与Django兼容?有没有可以参考的使用示例?

我怀疑这里有一些线程问题。也许还有更好的选择可以使用?欢迎提出建议。

提前谢谢。