Periodic jobs MWE with apscheduler

"""
A minimal example of using apscheduler
to schedule regularly recurring tasks.
"""

from datetime import datetime, timedelta
from apscheduler.schedulers.blocking import BlockingScheduler

# A sample job
def my_job(msg):
    print(msg)

# Modular job-repeating function
def repeat_job(job, delta, sched, args=[]):
    job(*args)

    now = datetime.now()
    run_at = now + delta
    sched.add_job(repeat_job, run_date=run_at, args=[job, delta, sched, args])

if __name__ == "__main__":
    sched = BlockingScheduler()

    repeat_job(my_job, timedelta(seconds=3), sched, args=["Hello with period 3!"])
    repeat_job(my_job, timedelta(seconds=7), sched, args=["Hello with period 7!"])

    sched.start()