Implement signal handler in Pyhton

ref.txt

http://stackoverflow.com/questions/930519/how-to-run-one-last-function-before-getting-killed-in-python

signal.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
reload(sys)
sys.setdefaultencoding('utf-8')
import argparse
import re
import os
import time
import string
import difflib
import pdb
import traceback
from awesome_print import ap
from pprint import pprint as pp
from timeit import default_timer as timer
#3rd part package
from lxml import etree
from BeautifulSoup import BeautifulSoup
from twisted.internet import protocol, reactor
from signal import *

#Load custom library (remember to set PYTHONPATH in your .bashrc)
def signal_handler(*args):
    print "receive kill signal"
    sys.exit(0)


def main():
    try:
        for sig in (SIGABRT, SIGILL, SIGINT, SIGSEGV, SIGTERM):
            signal(sig, signal_handler)
        myPID = os.getpid()
        print myPID
        while True:
            print myPID
            time.sleep(0.8)
       
        pass
    except KeyboardInterrupt as e:
        print("ctrl C pressed")
        raise e
    except BaseException  as e:
        traceback.print_exc(file=sys.stdout)
        raise e
         
    pass

if __name__ == '__main__':
    start_time = timer()
    main()
    print("Elapsed time : %f " % (timer()-start_time))