Python爬虫获取cookie

# coding=utf-8
import cookielib
import urllib2

cookies = cookielib.MozillaCookieJar()
cookieHandler = urllib2.HTTPCookieProcessor(cookiejar=cookies)
opener = urllib2.build_opener(cookieHandler)
urllib2.install_opener(opener)

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

# 将cookie存为一个文件
cookies.save(filename="cookie.txt")

# 新建一个cookie对象
cookies2 = cookielib.MozillaCookieJar()

# 从文件中读取cookie
cookies2.load('cookie.txt')
for cookie in cookies2:
    print cookie.name, cookie.value