exit_on_exception.py

import functools
import sys
import logging


def exit_on_exception(method):
    @functools.wraps(method)
    def wrapped(*args, **kwargs):
        try:
            return method(*args, **kwargs)
        except MyException:
            logging.exception("crazy shit happened... exiting")
            sys.exit(1)
    return wrapped


@exit_on_exception
def message_handler(nsq_msg):
    return do_some_crazy_mongo_shit_that_throws_exceptions(nsq_msg.body)