# -*- coding: utf-8 -*-

import urllib2

import re

#connect to a URL

website = urllib2.urlopen("http://www.baidu.com")

#read html code

html = website.read()

#use re.findall to get all the links

links = re.findall('"((http|ftp)s?://.*?)"', html)  ###".*?"任意匹配

print links