拟使用cookie登录网站（以博客园为例）：

首先使用自己的账号和密码在浏览器登录，然后通过抓包拿到cookie，再将cookie放到请求之中发送请求即可

import urllib.request

headers = {
    "authority": "passport.cnblogs.com",
    "method": "GET",
    "path": "/user/LoginInfo?callback=jQuery1709735225435330517_1546482577013&_=1546482577074",
    "scheme": "https",
    "accept": "*/*",
    #"accept-encoding": "gzip, deflate, br", #如果有gzip和deflate 后面会打印二进制处理
     "accept-encoding": "br",
    "accept-language": "zh-CN,zh;q=0.9",
    "cookie": "ga=GA1.2.1160747923.15453653550; __gads=ID=2c50bb50d0bb45d90:T=1545369966:S=AL.......略",
    "referer": "https://i.cnblogs.com/",
    "user-agent": "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36",
    "x-requested-with": "XMLHttpRequest"
}

request = urllib.request.Request("https://www.cnblogs.com/commitsession", headers=headers)

response = urllib.request.urlopen(request)

print(response.read().decode('utf-8'))
#不replace  直接decode 会报错 UnicodeDecodeError: 'utf-8' codec can't decode byte 0x8b in position 1: invalid start byte
#print(response.read().decode('utf-8', errors="replace"))

 

控制台打印：

Python爬虫之urllib-登录博客园

 

 

参考报错处理、参考decode、参考urllib