Python script to check if Internet connectivity exists

script.py

import socket 
import logging

try:
    # see if we can resolve the host name -- tells us if there is
    # a DNS listening
    host = socket.gethostbyname('www.google.com')
    # connect to the host -- tells us if the host is actually
    # reachable
    s = socket.create_connection((host, 80), 2)
    s.close()
    logging.info('Internet connectivity is present')
except Exception as e:
    logging.error('Internet connectivity is not present: {}'.format(e))