POSIX Signals

 # signal -- installs a signal handler
signal.signal(number, handlerFn)

 # pause -- put process to sleep until signal is received
signal.pause()

--------------------------------------------------------------
import signal

def handler(n, traceback):
    print "Caught signal:", n

for i in range(1,31):
    if i != 9 and i != 19:
        signal.signal(i, handler)

print "I'm a tough process, you can't kill me!"
for i in range(1,6):
    signal.pause()
    print "Hit number", i
print "You sunk my battleship"