Executing Periodic Actions

Executing periodic actions

At the end of foo(), create a Timer which calls foo() itself after 10 seconds.

Because, Timer create a new thread to call foo().

You can do other stuff without being blocked.

import time, threading
def foo():
threading.Timer(10, foo).start()


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What is the best way to repeatedly execute a function every x seconds?

If your program doesn't have a event loop already, use the sched module, which implements a general purpose event scheduler.

import sched, time
s = sched.scheduler(time.time, time.sleep)
def do_something(sc):
print("Doing stuff...")
# do your stuff
sc.enter(60, 1, do_something, (sc,))

s.enter(60, 1, do_something, (s,))

If you're already using an event loop library like asyncio, trio, tkinter, PyQt5, gobject, kivy, and many others - just schedule the task using your existing event loop library's methods, instead.

Python Celery does not execute periodic tasks at all

"task":"your task",
"schedule":"your schedule"

Did you add the above snippet in celery.py file?


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