Python script to find any text in Files - Recursive

Find Text in Files

#!/usr/bin/python3

import os,sys

keyWord = sys.argv[1];
rootdir=('/var/www/mysite/public')

found = []
for folder, dirs, files in os.walk(rootdir):
    for file in files:
        #if file.endswith('.php'):
        try:
            fullpath = os.path.join(folder, file)
            with open(fullpath, 'r') as f:
                for line in f:
                    if keyWord in line:
                        print(fullpath)
                        found.extend('1')
                        break
        except IOError:
        	pass

if (len(found) > 0):
    print(len(found), " file(s)")
else:
	print("There are no matches")