Problem on combining triggers

Hi, I’m trying to use combine triggers. For example, I want to run a function on the first minute for every 2 seconds:

from time import sleep
from apscheduler.triggers.combining import AndTrigger
from apscheduler.triggers.interval import IntervalTrigger
from apscheduler.triggers.cron import CronTrigger
from apscheduler.schedulers.background import BackgroundScheduler


def job_function():
    print("hello from function")


if __name__ == "__main__":
    scheduler = BackgroundScheduler()
    trigger = AndTrigger([IntervalTrigger(seconds=2),
                          CronTrigger(minute=1)])
    scheduler.add_job(job_function, trigger)
    print("before start", scheduler.get_jobs())
    scheduler.start()
    print("after start", scheduler.get_jobs())
    print("ok")
    while True:
        sleep(.1)

But the program never prints after start. It is very strange to me. The OrTrigger works fine for this example. If it is a bug is there any workaround?

[agronholm]

Why not just: day=10, hour=10, second='*/10'?

[agronholm]

The proper solution would have been to use CronTrigger(minute=1, second="*/2"). v4.0.0a1 also includes a threshold parameter for AndTrigger which can be used to solve the issue of the trigger run times not matching exactly.