Setting the time for the process in Python

Question

I would like set a limit time for process in python, because this process doesn't end with itself. It is something like this:

def forever():
    pass

somethink_to_do_this_20_secounds:
    forever()

print("this print after 20 seconds of forever() work")

I found a topic about checking program execution time, but I did not find setting the time limit for the program How do I get time of a Python program's execution?

How i can realize this somethink_to_do_this_20_secounds in Python? By using subprocess?

check this if it may help : https://stackoverflow.com/questions/14920384/stop-code-after-time-period — Hetal Thaker, Sep 27 '19 at 09:52
You can also use signal, https://stackoverflow.com/questions/492519/timeout-on-a-function-call — Deepak Patankar, Sep 27 '19 at 09:53
You mentioned "subprocess" , why do you need it in your case? — RomanPerekhrest, Sep 27 '19 at 09:55

score 1 · Accepted Answer · answered Sep 27 '19 at 10:49

You could use the concurrent module to fire a separate thread and wait for it 20 seconds.

from concurrent.futures import ThreadPoolExecutor, TimeoutError
from time import sleep


def forever():
    sleep(21)

pool = ThreadPoolExecutor()
future = pool.submit(forever)
try:
    result = future.result(20)
except TimeoutError:
    print("Timeout")

print("this print after 20 seconds of forever() work")

Setting the time for the process in Python

1 Answers1