How can I let a while loop pause for a specified time (datetime)?-CodePudding

I would like to let a while loop run, the stuff thats happening inside takes about 2 seconds to complete (it varies a small amount), so if I use time.sleep(60 or 58) it would still shift slightly. So what I would like to do is that the while loop starts for example at 16:00:00 (because I click run) and does its stuff, waits and then starts again at 16:01:00, so a minute later and so on. How can I do that? Because I just can´t seem to find an answer to that. Thanks in advance

CodePudding user response：

Measure the time taken by the operation. Then subtract that from your loop period to get the amount of time to sleep.

import time

while True:
    start = time.time()
    # do your thing
    time.sleep(60 - (time.time() - start))

CodePudding user response：

Where are you putting time.sleep() in your code? Have you tried putting it at the end of the while loop when all of the processing is complete?

CodePudding user response：

Calling the stop function will stop your while loop for the amount you pass. This works I tested it

def stop(t):
    running = False
    time.sleep(t)
    running = True

while running:
    # Do something