#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2008 Doug Hellmann All rights reserved.
     #
     """
     """
     
     __version__ = "$Id$"
     #end_pymotw_header
     
     import signal
     import os
     import time
     
     def receive_signal(signum, stack):
         print 'Received:', signum
     
     signal.signal(signal.SIGUSR1, receive_signal)
     signal.signal(signal.SIGUSR2, receive_signal)
     
     print 'My PID is:', os.getpid()
     
     while True:
         print 'Waiting...'
         time.sleep(3)