pyhton爬取代理IP的问题

若余相思

import re
import os
import urllib.request
from urllib.error import HTTPError, URLError


def open_url(url):
    req = urllib.request.Request(url)
    req.add_header('User-Agent', 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36')
    try:
        response = urllib.request.urlopen(req)
    except (HTTPError, URLError) as e:
        print(e)
    try:
        html = response.read().decode('utf-8')
    except UnboundLocalError as e:
        print(e)

    return html

def save_file(html):
    p = r'(?:(?:[0-1]?\d?\d|2[0-4]\d|25[0-5])\.){3}(?:[0-1]?\d?\d|2[0-4]\d|25[0-5])'
    ip_list = re.findall(p, html)
    for each in ip_list:
       print(eachh)
if __name__ == "__main__":
    url = "https://cn.proxy.com"
    save_file(open_url(url))

这几个异常如何解决？

若余相思

研究了一下，原来是url失效了，自己太粗心了