python登陆网页并处理网站session和cookie详解编程语言

这是一个python通过urllib直接登陆网站，并处理网站的session和cookie

import cookielib, urllib, urllib2 
  
login = [email protected]' 
password = 'login' 
  
# Enable cookie support for urllib2 
cookiejar = cookielib.CookieJar() 
urlOpener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cookiejar)) 
  
# Send login/password to the site and get the session cookie 
values = {'login':login, 'password':password } 
data = urllib.urlencode(values) 
request = urllib2.Request("http://www.imdb.com/register/login", data) 
url = urlOpener.open(request)  # Our cookiejar automatically receives the cookies 
page = url.read(500000) 
  
# Make sure we are logged in by checking the presence of the cookie "id". 
# (which is the cookie containing the session identifier.) 
if not 'id' in [cookie.name for cookie in cookiejar]: 
    raise ValueError, "Login failed with login=%s, password=%s" % (login,password) 
  
print "We are logged in !" 
  
# Make another request with our session cookie 
# (Our urlOpener automatically uses cookies from our cookiejar) 
url = urlOpener.open('http://imdb.com/find?s=all&q=grave') 
page = url.read(200000)