初学python以及编程，尝试写这样一个脚本，待成功后才会继续完善。
现在想要实现登陆。
问题：

1. 请问我这个代码哪儿出了问题？登陆不成功。
2. headers和postData要写哪些出来，我用HttpFox抓包的。postData有perfect和raw版本，我在写的时候用哪个？
   感谢！

header有如下几项：

 (Request-Line)  POST /member/login?callback=jQuery191069041835273338_1398059175342 HTTP/1.1
Host    login.xiami.com
User-Agent  Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:28.0) Gecko/20100101 Firefox/28.0
Accept  text/javascript, application/javascript, application/ecmascript, application/x-ecmascript, */*; q=0.01
Accept-Language zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3
Accept-Encoding gzip, deflate
Content-Type    application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With    XMLHttpRequest
Referer https://login.xiami.com/member/login?spm=a1z1s.6843761.226669510.8.mgS3ty
Content-Length  174
Cookie  __utma=251084815.807798752.1397902515.1398051611.1398059164.8; __utmz=251084815.1397902515.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); _xiamitoken=5d6acda6813fcfb509c692f961c1db91; _unsign_token=adb241a1ca1e9d88841a8b03f1dfbf0a; CNZZDATA921634=cnzz_eid%3D290074860-1397902517-null%26ntime%3D1398059175%26cnzz_a%3D16%26sin%3Dhttp%253A%252F%252Fwww.xiami.com%252F%26ltime%3D1398044904939%26rtime%3D1; CNZZDATA2629111=cnzz_eid%3D953933079-1397902517-null%26ntime%3D1398059175%26cnzz_a%3D16%26sin%3Dhttp%253A%252F%252Fwww.xiami.com%252F%26ltime%3D1398044905317%26rtime%3D1; __gads=ID=4810f3a98f707097:T=1397902585:S=ALNI_MZIeFDBRyd7UMnR4vzSVgiPocjL1Q; __utmb=251084815.3.10.1398059164; __utmc=251084815; t_sign_auth=3
Connection  keep-alive
Pragma  no-cache
Cache-Control   no-cache

而postData有如下几项：

 _xiamitoken 5d6acda6813fcfb509c692f961c1db91
done    http%3A%2F%2Fwww.xiami.com
from    web
havanaId    
email   被我隐去（原始状态）
password    被我隐去（原始状态）
submit  登 录

postData的raw版本：
_xiamitoken=5d6acda6813fcfb509c692f961c1db91&done=http%253A%252F%252Fwww.xiami.com&from=web&havanaId=&email=810233438%40qq.com&password=密码隐去（原始状态）&submit=%E7%99%BB+%E5%BD%95

 #! /usr/bin/env python3
# -*- coding: utf-8 -*-

'''
A simple py used to signin xiami
@author:[email protected]
'''

import urllib
from urllib import parse
from urllib import request

headers = {'User-Agent' :  'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:28.0) Gecko/20100101 Firefox/28.0', 'Referer' : 'https://login.xiami.com/member/login?spm=a1z1s.6843761.226669510.8.mgS3ty'}

postData = {'email' : '[email protected]', 'password' : 'XXX', 'done' : 'http%253A%252F%252Fwww.xiami.com', 'submit' : 'E7%99%BB+%E5%BD%95', '_xiamitoken' : '5d6acda6813fcfb509c692f961c1db91'}

postData = urllib.parse.urlencode(postData)
postData = postData.encode('utf-8')

print('Logging...')

req = urllib.request.Request('http://xiami.com/member/login', postData, headers)
result =urllib.request.urlopen(req).read()
result = result.decode('utf-8')
print(result)