siginttest.py

import time
import signal


def main():
    d = {}
    d["stop"] = False
    def sighandler(signum, frame):
        print signum, frame
        d["stop"] = True

    signal.signal(signal.SIGINT, sighandler)
    while True:
        print "foo"
        if d["stop"]:
            break
        time.sleep(10)


if __name__ == "__main__":
    import sys
    import traceback
    try:
        main()
    except SystemExit:
        # when sys.exit(1) is called in main(),
        # this except statement will be executed.
        raise
    except:
        traceback.print_exc()