response_time.py

#! /usr/bin/env python

import time
import urllib2
import sys

def usage():
    print """usage: python reponse_time.py [url]"""

def main():
    if len(sys.argv) != 2:
        usage()
        sys.exit()

    url = sys.argv[1]

    start = time.time()

    urllib2.urlopen(url)

    end = time.time()

    response_time = end - start

    print time.strftime('[%Y/%m/%d %H:%M:%S]'), response_time

main()