BeautifulSoup使用

#python2.7
#BeautifulSoup4.0
import urllib
import urllib2
from urllib import urlopen
from BeautifulSoup import BeautifulSoup
from urllib2 import HTTPError

def getTitle(url):
try:
html = urlopen(url)
except HTTPError as e:
return None
try:
bsObj = BeautifulSoup(html.read())
title = bsObj.title.string
except AttributeError as e:
return None
return title

title = getTitle("https://mp.weixin.qq.com/cgi-bin/loginpage?t=wxm2-login&lang=zh_CN")
if title ==None:
print ("Title counld not be found")
else:
print (title)