import time
import os
import signal

def alarm_handler(signum, frame):
    print("I'm an alarm hear me ring! (my ID is {})".format(signum))

def main():
    print("I'm {}".format(os.getpid()))
    while True:
        time.sleep(1)

if __name__ == "__main__":
    signal.signal(signal.SIGALRM, alarm_handler)
    try:
        main()
    except Exception as e:
        print(e)