Handle/kill child process when parent process dies

example.py

from multiprocessing import Process
import os
import sys
from time import sleep

class JobSeeker(object):
    
    def __init__(self, ppid=None):
        self.ppid = ppid
    
    def look_for_job(self):
        while True:
            # if parent process is no longer valid, kill himself
            if self.ppid and self.ppid != os.getppid():
                sys.exit(2)
                
            sleep(10)
        

if __name__ == '__main__':
    my_pid = os.getpid()
    worker_number = 4

    print "Start master process, PID=%d" % my_pid
    for pnum in xrange(worker_number):
        unemployed = JobSeeker(ppid=my_pid)
        p = Process(target=unemployed.look_for_job)
        p.start()