Pylons

# Test the signal module
from test.test_support import verbose, TestSkipped, TestFailed
import signal
import os, sys, time
import traceback
import java

verbose=1
if verbose:
    x = '-x'
else:
    x = '+x'

pid = java.lang.management.ManagementFactory.getRuntimeMXBean().getName().split('@')[0]

# Shell script that will send us asynchronous signals
script = """
 (
        set %(x)s
        #sleep 2
        #kill -s TRAP %(pid)d
        #sleep 2
        #kill -s INT %(pid)d
        sleep 2
        kill -s WINCH %(pid)d
 ) &
""" % vars()

def handlerForSIGTRAP(*args):
    if verbose:
        print "handlerForSIGTRAP", args

HandlerBCalled = "HandlerBCalled"       # Exception

def handlerForSIGINT(*args):
    if verbose:
        print "handlerB", args
    raise HandlerBCalled, args

#signal.alarm(20)                        # Entire test lasts at most 20 sec.
signal.signal(signal.SIGTRAP, handlerForSIGTRAP)
signal.signal(signal.SIGINT, handlerForSIGINT)
signal.signal(signal.SIGWINCH, signal.SIG_IGN)
#signal.signal(3, signal.SIG_IGN) # JVM doesn't pass SIGQUIT to us
#signal.signal(signal.SIGALRM, signal.default_int_handler)

os.system(script)
#wait a bit since we don't have signal.pause() yet
for x in range(4):
    print x
    time.sleep(1)