python登录知乎

#coding:utf-8
import requests
import urllib3
import time
class Zhihu:
    def __init__(self):
        self.loginurl=''
        self.indexurl='https://www.zhihu.com/'
        self.cookies=''
        self.headers={
            'User-Agent': 'Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Mobile Safari/537.36'
         }
        self.s=''
        self.posturl='https://www.zhihu.com/login/email'
    def get_xsrf(self):
        requests.packages.urllib3.disable_warnings()
        s =requests.session()
        self.s=s
        res = s.get(self.indexurl,headers=self.headers,verify=False)
        self.cookies=res.cookies
        return res.cookies['_xsrf']
    def get_post(self):
        data={
            "_xsrf":self.get_xsrf(),
            "password":"wxxxx@",
            "email":"10000@qq.com",
            "captcha":self.get_captcha(),
            'captcha_type': 'en'
        }
        print data

        requests.packages.urllib3.disable_warnings()
        res = self.s.post(self.posturl, headers=self.headers, verify=False,data=data)
        print res.content
    def get_captcha(self):
        t=str(int(time.time()))
        captcha_url='http://www.zhihu.com/captcha.gif?r=1466595391805&type=login&lang=en'
        res = self.s.get(captcha_url,headers=self.headers)

        content  =res.content
        pic=  open('./t1.gif','wb')
        pic.write(content)
        pic.close()

        captcha=  raw_input('captcha : ')
        return captcha

obj = Zhihu()
obj.get_post()

http://www.jianshu.com/p/50c5815bb60b#

http://blog.csdn.net/hudeyu777/article/details/76706007