Sequentially Run Pending Tasks With Python Aps

Suppose I have two cron triggers: trigger1 = CronTrigger(second='0,20,40') trigger2 = CronTrigger(second='0,10,20,30,40,50') and I create my scheduler like this: scheduler = Bloc

Solution 1:

Use DebugExecutor. For example:

from apscheduler.schedulers.blocking import BlockingScheduler
from apscheduler.executors.debug import DebugExecutor

def foo1():
    print("x")

def foo2():
    time.sleep(3)
    print("y")

scheduler = BlockingScheduler()
scheduler.add_executor(DebugExecutor(), "consecutive")
scheduler.add_job(foo1, 'interval', max_instances=1, seconds=1, executor="consecutive")
scheduler.add_job(foo2, 'interval', max_instances=1, seconds=5, executor="consecutive")

Solution 2:

Use DebugExecutor is a good idea, additionally I needed to specify a high value for the misfire_grace_time parameter in .add_job() to avoid skipping runs when multiple jobs have same execution interval