Python读取网页内容的方法

import urllib2#encoding = utf-8class Crawler:  def main(self):    #req = urllib2.Request('http://www.baidu.com/')    #req.add_header('User-Agent', 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:5.0)')    #urllib2.socket.setdefaulttimeout(10) # 超时10秒    #page = urllib2.urlopen(req)    page = urllib2.urlopen('http://www.google.com', timeout=10)    data = page.read()    print data    print len(data) #计算字节长度if __name__ == '__main__':  me=Crawler()  me.main()