WebScrapper to find a text in a URL response

webscrapper_find_text.py

# Usage:
#      python webscrapper_find_text.py
#
# A useful way to execute this script could be:
#
#   while true ; do 
#       python webscrapper_find_text.py ; 
#       sleep 30; 
#   done

URL="http://myurl.com"
TEXT_TO_FIND="text_to_find"

import urllib2
from datetime import datetime

def main():

    f = urllib2.urlopen(URL)

    log_data = f.read()
    index = log_data.find(WORD_TO_FIND)
    dt = datetime.now().strftime("%Y%m%d-%H%M%S")
    
    if (index > -1 ):
        print "[%s] SUCCESS: Found '%s'" % (dt, log_data[index:(index+len(WORD_TO_FIND))])
    else:
        print "[%s] ERROR: Not found" % dt
    
    return
    
if __name__ == '__main__':
    main()