python Apscheduler持久化

from pytz import utc

from apscheduler.schedulers.background import BackgroundScheduler
from apscheduler.jobstores.mongodb import MongoDBJobStore
from apscheduler.jobstores.sqlalchemy import SQLAlchemyJobStore
from apscheduler.executors.pool import ThreadPoolExecutor, ProcessPoolExecutor


jobstores = {
  # 使用sqlite数据库存储，如需其它数据库存储需要指定
  'default': SQLAlchemyJobStore(url='sqlite:///jobs.sqlite')
}
executors = {
  'default': ThreadPoolExecutor(20),
  'processpool': ProcessPoolExecutor(5)
}
job_defaults = {
  'coalesce': False,
  'max_instances': 3
}
scheduler = BackgroundScheduler(jobstores=jobstores, 
executors=executors, job_defaults=job_defaults, timezone=utc)
scheduler.start()