Kill process using another process python multiprocessing

Question

I'm trying to create a script in Python. The idea is to start 3 processes, 2 of them constantly print a message, and the third is there to kill them after a few seconds. The problem is that I don't know how to tell that third which processes should be terminated.

from multiprocessing import *
import time

def OkreciLevi():
   while 1:
       print "okrecem levi"
       time.sleep(3)

def OkreciDesni():
   while 1:
       print "okrecem desni"
       time.sleep(3)

def Koci(levi,desni):
   for vrednost in range(2):
       print str(vrednost)
       time.sleep(3)
   levi.terminate()
   desni.terminate()
   print "kocim"

if __name__== '__main__':
   levi=Process(target=OkreciLevi)
   desni=Process(target=OkreciDesni)
   koci=Process(target=Koci, args=(levi,desni))
   koci.start()
   levi.start()
   desni.start()
   levi.join()
   desni.join()
   koci.join()

I am Serbian, and used to write names of functions in Serbian. Sorry 'bout that. — JaSamSale
– JaSamSale, Commented Mar 24, 2014 at 19:52

Community · Accepted Answer · 2017-05-23 12:05:21Z

1

Assuming that you're on *nix-like operating system I guess that you need to:

Get the PID of the multiprocessing worker;
Send SIGTERM to them. For instanse use os.kill.

Also this information may be useful for you.

edited May 23, 2017 at 12:05

CommunityBot

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answered Mar 23, 2014 at 18:58

Vitaly Isaev

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3 Comments

JaSamSale Over a year ago

I tried with SIGTERM but it didn't recognize signal.SIGTERM so i thought if there is another way to do that. The other problem was getting PID from processes levi and desni to process koci.

Vitaly Isaev Over a year ago

@JaSamSale, Post your code to any online service (pastebin.com for instance) and we'll try to find a workaround.

JaSamSale Over a year ago

I found a way to work around it, but now I wanna know why this doesn't work.

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