How to stop a function outside of it in python

Question

I want to know how to stop a running function outside of it. Here is how it should be:

def smth(): time.sleep(5) # Just an example smth.stop()

Thanks for your help

I think you need to use multiprocess and kill the process when you want to stop it — marsnebulasoup
– marsnebulasoup, Commented Aug 20, 2020 at 14:02

marsnebulasoup · Accepted Answer · 2020-08-20 14:07:00Z

Here's an example using the multiprocessing library:

from multiprocessing import Process import time def foo(): print('Starting...') time.sleep(5) print('Done') p = Process(target=foo) #make process p.start() #start function time.sleep(2) #wait 2 secs p.terminate() #kill it print('Killed')

Output:

Starting... Killed

Basically, what this code does is:

Create a process p which runs the function foo when started
Wait 2 seconds to simulate doing other stuff
End the process p with p.terminate()

Since p never passes time.sleep(5) in foo, it doesn't print 'Done'

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