python登陆github

#!/usr/bin/env python  
# encoding: utf-8
import requests
from headers import headers
from lxml import html
from config import *
class Login(object):
    def __init__(self):
        headers["Referer"] = 'https://github.com/'
        headers["Host"] = 'github.com'
        self.login_url="https://github.com/login"
        self.post_url="https://github.com/session"
        self.headers=headers
        self.session=requests.Session()
    def get_token(self):
        response=self.session.get(self.login_url,timeout=5)
        if response.status_code==requests.codes.ok:
              root = html.fromstring(response.text)
              token = root.xpath("//input[@name='authenticity_token']/@value")[0]
              if token:
                  return token
              return False
    def lgoin(self):
        token=self.get_token()
        if token:
            data = {"commit": "Sign in", "utf8": "✓", "authenticity_token": token, "login":LOGIN_ID ,
                    "password": PASS_WORD}

            response = self.session.post(url=self.post_url, headers=headers, data=data, timeout=15)
            print(response.text)
        else:
            print("获取token失败，登录失败")
if __name__=="__main__":
    Login().lgoin()

　　#其中authenticity_token的值，位于一个隐藏的input标签中，另外headers需要传入的信息不止要有ua，还有

   headers["Referer"] = 'https://github.com/'
   headers["Host"] = 'github.com'