self.domain_initial_dot = domain_initial_dot
    self.path = path
    self.path_specified = path_specified
    self.secure = secure
    self.expires = expires
    self.discard = discard
    self.comment = comment
    self.comment_url = comment_url
    self.rfc2109 = rfc2109

>>> import urllib
>>> import urllib2,cookielib
>>> login_page = "http://www.renren.com/ajaxLogin"
>>> cj = cookielib.CookieJar()
>>> opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
>>> opener.add_handler = [('User-agent','Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)')]
>>> data = urllib.urlencode({"email":'username',"password":'password'}) 
>>> opener.open(login_page,data)
<addinfourl at 53653216 whose fp = <socket._fileobject object at 0x03307B70>>
>>> if cj:
... for index,cookie in enumerate(cj):
...  print index,':',cookie
...  
0 : <Cookie _de=90D533AE20EB964CA96710977F452897 for .renren.com/>
1 : <Cookie anonymid=hlehtdzg-8359yw for .renren.com/>
2 : <Cookie first_login_flag=1 for .renren.com/>
3 : <Cookie id=224967207 for .renren.com/>
4 : <Cookie loginfrom=null for .renren.com/>
5 : <Cookie p=9beb60859c004bcaf0a32ff2c973473d7 for .renren.com/>
6 : <Cookie societyguester=86b6a6006002ab6316f708521ab50bfc7 for .renren.com/>
7 : <Cookie t=86b6a6006002ab6316f708521ab50bfc7 for .renren.com/>
8 : <Cookie xnsid=fa53da51 for .renren.com/>
9 : <Cookie t=30af9ffe774f4d6f242e92da1ccd6670 for .renren.com/xtalk/>
10 : <Cookie feedType=224967207_hot for .www.renren.com/>
11 : <Cookie JSESSIONID=abc3IP9kEhTExblxcRfeu for www.renren.com/>
>>>

#encoding=utf-8
import urllib2
import urllib
import cookielib
def renrenBrower(url,user,password):
  login_page = "http://www.renren.com/ajaxLogin"
  try:    
    cj = cookielib.CookieJar()    
    opener=urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
    opener.addheaders = [('User-agent','Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)')]
    data = urllib.urlencode({"email":user,"password":password})
    opener.open(login_page,data)
    op=opener.open(url)
    data= op.read()
    return data
  except Exception,e:
    print str(e)
print renrenBrower("http://www.renren.com/home","用户名","密码")