python:HTML转义

http://www.cnblogs.com/kill-signal/archive/2012/10/16/2725985.html 包含转义符的HTML字符串转换成为未转义的HTML

import HTMLParser
html_parser = HTMLParser.HTMLParser()
s = '<abc>'
s = html_parser.unescape(s) #这样就得到了s = '<abc>'

  未转义的HTML进行转义

import cgi
s = "<b>aa</b>"
cgi.escape(s)