# L-33 MCS 275 Mon 5 Apr 2010 : fork.py

import os

def child():
   print 'hello from child', os.getpid()
   os._exit(0) # go back to parent loop

def parent():
   while True:
      newpid = os.fork()
      if newpid == 0:
         child()
      else:
         print 'hello from parent',\
           os.getpid(), newpid
      if raw_input() == 'q': break

parent()