[APSCHEDULER] cron jobs administrating a scheduled job

python

from apscheduler.jobstores.base import JobLookupError
from apscheduler.schedulers.background import BackgroundScheduler
import time


def hello():
    print(time.localtime().tm_sec)


def kill_hello(scheduler):
    try:
      scheduler.remove_job('hello_job')
    except JobLookupError:
      return

def start_hello(scheduler):
    scheduler.add_job(hello, 'interval', seconds=2, id='hello_job')


if __name__ == '__main__':
    scheduler = BackgroundScheduler()
    scheduler.add_job(kill_hello, 'cron', second=0, id='kill_hello', args=[scheduler])
    scheduler.add_job(start_hello, 'cron', second=30, id='start_hello', args=[scheduler])
    scheduler.start()
    while True:
        time.sleep(10)