python爬虫用request库处理cookie的实例讲解

resp = requests.get('http://www.baidu.com/') 
print(resp.cookies) 
print(resp.cookies.get_dict())

import requests
url = "http://www.renren.com/PLogin.do" 
data = {"email":"970138074@qq.com",'password':"pythonspider"} 
headers = { 'User-Agent': "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 
(KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36" }
#登录
session = requests.session() session.post(url,data=data,headers=headers)
#访问
resp = session.get('http://www.renren.com/256450404/profile')
print(resp.text) ```

import requests
s = requests.session()
# 第一步：发送一个请求，用于设置请求中的cookies
cookies = dict(cookies_are='cookie1')
# tips: http://httpbin.org能够用于测试http请求和响应
r1 = s.get(url='http://httpbin.org/cookies', cookies=cookies)
print(r1.text)
# 第二步：发送一个请求，用于再次设置请求中的cookies
cookies = dict(cookies_are='cookie2')
r2 = s.get(url='http://httpbin.org/cookies', cookies=cookies)
print(r2.text)

# r1.text
{
 "cookies": {
 "cookies_are": "cookie1"
 }
}
# t2.text
{
 "cookies": {
 "cookies_are": "cookie2"
 }
}