how to restart my code every 5 min at python3

Question

my code sometimes work in 17 sec sometimes 23 sec sometimes 40 seconds it changes with my connection speed and with datas that i get. but i want to repeat working in every next 5 min like 12:05 12:10 12:15. but because of working time it changes like 12:05 12:11 12:16. my code is running all day because of time difference at the end of the day i get nearly 30 minute loos. if you help me i ll be glad have a nice day for all

import time
from datetime import datetime
def main():
present_time=datetime.now()

 *****MY CODE HERE*****
print(datetime.strftime(present_time,"%X"))
while True:
     main()
     time.sleep(300)

You want the code to run every 5 minutes but sometimes it takes more than 5 minutes for the code to finish. Do you want code to stop in middle of execution then? — Ninad Gaikwad, Feb 22 '19 at 08:18
@NinadGaikwad yes i want my code to run every 5 minutes. but its working at 17 or 23 or 40 seconds. and when i type time.sleep(300) it takes more then 5 minutes and time slips to other minute. — Alper Aşan, Feb 22 '19 at 08:22
Possible duplicate of [What is the best way to repeatedly execute a function every x seconds in Python?](https://stackoverflow.com/questions/474528/what-is-the-best-way-to-repeatedly-execute-a-function-every-x-seconds-in-python) — Thierry Lathuille, Feb 22 '19 at 08:23
and how about use cron and execute your script every 5 mins? its valid for you? — Felix Martinez, Feb 22 '19 at 10:47
@FelixMartinez i ve checked cron and it can be usefull. do you know hot to use cron? — Alper Aşan, Feb 23 '19 at 18:50
crontab tutorial: https://www.computerhope.com/unix/ucrontab.htm — Felix Martinez, Feb 25 '19 at 07:51

Dillon Davis · Accepted Answer · 2019-02-22T08:51:54.810

1

It seems you want something like the following, which will cause the program to sleep up till the next 5 minute mark at most. If the run time of your code exceeds 5 minutes, it will not sleep, and instead start the next 5 minute interval immediately.

from time import time, sleep

def main():
    # *****YOUR CODE HERE*****

while True:
    start_time = time()
    main()
    sleep(max(0, 5 * 60 + start_time - time()))

edited Feb 22 '19 at 08:51

answered Feb 22 '19 at 08:24

Dillon Davis

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it doesnt work exactly that i want mate – Alper Aşan Feb 22 '19 at 08:45
2

@AlperAşan I don't understand. Your post seems to suggest you want it to start / stop at exact 5-minute schedules, and this is what my code does. – Dillon Davis Feb 22 '19 at 08:49
i want it to work every 5 minutes with in code working time. my problem is code is working at different times. sometime 17 sec or 20 sec or 40 sec. when i type this code it works 5:17 minutes or 5:20 minutes. did i explain my problem mate? – Alper Aşan Feb 22 '19 at 08:53
2

@AlperAşan my code accounts for that. If your code takes 4min 50sec, the above code will sleep for 10 seconds, for a total run time 5 minutes. You can try it by substituting `5 * 60` for some smaller, easier to measure time frame if you don't believe me. – Dillon Davis Feb 22 '19 at 08:55
2

@AlperAşan Have you removed the `sleep(300)` from your original code? – Thierry Lathuille Feb 22 '19 at 08:58
@AlperAşan once you've run this code and seen it does in fact work, please consider retracting your downvote, unless there are further issues. – Dillon Davis Feb 22 '19 at 09:13
@DillonDavis The OP can't be the downvoter, as he doesn't have the necessary (125) reputation to do that. – Thierry Lathuille Feb 22 '19 at 09:26
@ThierryLathuille ah, you're right. By the tone of his comments it sounded like he was replying as the downvoter. – Dillon Davis Feb 22 '19 at 09:28
@DillonDavis maybe you are getting angry to me but i typed your code and first data time is 20:36:28 and second data time is 20:42:11. i wanna mean that i want second data time at 20:41:28 thats all. – Alper Aşan Feb 23 '19 at 17:57

how to restart my code every 5 min at python3

1 Answers1