escape html tag

escape_html.py

#!/usr/bin/python
# -*- coding: utf-8 -*-
#
#author:         rex
#blog:           http://iregex.org
#filename        dictregex.py
#created:        2010-12-27 14:27

import re

htmldict={
    "&": "&",
    '"': """,
    "'": "'",
    ">": ">",
    "<": "&lt;", 
}

text=" hello & \" ' <> &"
def escape(string):
    return htmldict[string.group(0)]
text=re.sub(r'''[&'"><]''', escape, text)
print text