Gracefully kill Python process

main.py

from time import sleep
import signal
import sys


def on_stop_handler(signum, frame):
    print 'Exiting application...'
    sys.exit(0)


def listen_stop_signal():
    signal.signal(signal.SIGINT, on_stop_handler)
    signal.signal(signal.SIGTERM, on_stop_handler)


def main_loop():
    listen_stop_signal()

    while True:
        sleep(1)
        print 'Working...'

main_loop()