方式一: 通过icanhazip.com返回的ip地址进行检测

import requests

'''代理IP地址（高匿）'''

proxy = {

  'http': 'http://117.85.105.170:808',

  'https': 'https://117.85.105.170:808'

}

'''head 信息'''

head = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36',

       'Connection': 'keep-alive'}

'''http://icanhazip.com会返回当前的IP地址'''

p = requests.get('http://icanhazip.com', headers=head, proxies=proxy)

print(p.text)

方式二: Telnet方法

import telnetlib

def test_ip(ip,port):

    try:

        telnetlib.Telnet(ip,port,timeout=2)

        print("代理ip有效！")

    except:

        print("代理ip无效！")

test_ip("221.6.139.158","9000")

from:
https://www.jb51.net/article/144418.htm
http://http.hunbovps.com/article-id-423.html