python cookielib 应用实例学习

#!/usr/bin/env python
#encoding=utf-8
import sys
import re
import urllib2
import urllib
import cookielib

class Renren(object):
  
    def __init__(self):
        self.name = self.pwd = self.content = self.domain = self.origURL =  ''
        self.operate = ''#登录进去的操作对象
        self.cj = cookielib.LWPCookieJar()
        try:
            self.cj.revert('renren.coockie')
        except Exception,e:
            print e
          
        self.opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(self.cj))
        urllib2.install_opener(self.opener)
  
  
    def setinfo(self,username,password,domain,origURL):
        '''设置用户登录信息'''
        self.name = username
        self.pwd = password
        self.domain = domain
        self.origURL = origURL

    def login(self):
        '''登录人人网'''
        params = {'domain':self.domain,'origURL':self.origURL,'email':self.name, 'password':self.pwd}
        print 'login.......'
        req = urllib2.Request(
            'http://www.renren.com/PLogin.do',
            urllib.urlencode(params)
        )
      
        self.operate = self.opener.open(req)

        if self.operate.geturl() == 'http://www.renren.com/Home.do':
            print 'Logged on successfully!'
            self.cj.save('renren.coockie')
            self.__viewnewinfo()
        else:
            print 'Logged on error'
  
    def __viewnewinfo(self):
        '''查看好友的更新状态'''
        self.__caiinfo()
      
      
    def __caiinfo(self):
        '''采集信息'''
      
        h3patten = re.compile('<h3>(.*?)</h3>')#匹配范围
        apatten = re.compile('<a.+>(.+)</a>:')#匹配作者
        cpatten = re.compile('</a>(.+)s')#匹配内容      
        infocontent = self.operate.readlines()
#        print infocontent
        print 'friend newinfo:'
        for i in infocontent:
            content = h3patten.findall(i)
            if len(content) != 0:
                for m in content:
                    username = apatten.findall(m)
                    info = cpatten.findall(m)
                    if len(username) !=0:
                        print username[0],'说:',info[0]
                        print '----------------------------------------------'
                    else:
                        continue
  
ren = Renren()
username = ''#你的人人网的帐号
password = ''#你的人人网的密码
domain = 'renren.com'#人人网的地址
origURL = 'http://www.renren.com/Home.do'#人人网登录以后的地址
ren.setinfo(username,password,domain,origURL)
ren.login()

self.cj = cookielib.LWPCookieJar()

try:
    self.cj.revert('renren.coockie')
except Exception,e:
    print e
    self.opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(self.cj))

urllib2.install_opener(self.opener)