Python 快速验证代理IP是否有效

有时候，我们需要用到代理IP，比如在爬虫的时候，但是得到了IP之后，可能不知道怎么验证这些IP是不是有效的，这时候我们可以使用Python携带该IP来模拟访问某一个网站，如果多次未成功访问，则说明这个代理是无效的。代码如下：

1import requests
2import random
3import time
4
5http_ip = [
6    '118.163.13.200:8080',
7    '222.223.182.66:8000',
8    '51.158.186.242:8811',
9    '171.37.79.129:9797',
10    '139.255.123.194:4550'
11]
12
13for i in range(10):
14    try:
15        ip_proxy = random.choice(http_ip)
16        proxy_ip = {
17            'http': ip_proxy,
18            'https': ip_proxy,
19        }
20        print('使用代理的IP:', proxy_ip)
21        response = requests.get("http://httpbin.org/ip", proxies=proxy_ip).text
22        print(response)
23        print('当前IP有效')
24        time.sleep(2)
25    except Exception as e:
26        print(e.args[0])
27        print('当前IP无效')
28        continue
29

运行结果如下：

1使用代理的IP: {'http': '118.163.13.200:8080', 'https': '118.163.13.200:8080'}
2HTTPConnectionPool(host='118.163.13.200', port=8080): Max retries exceeded with url: http://httpbin.org/ip (Caused by ProxyError('Cannot connect to proxy.', NewConnectionError('<urllib3.connection.HTTPConnection object at 0x00000247674F5F88>: Failed to establish a new connection: [WinError 10060] 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败。')))
3当前IP无效
4使用代理的IP: {'http': '51.158.186.242:8811', 'https': '51.158.186.242:8811'}
5{
6  "origin": "51.158.186.242"
7}
8
9当前IP有效
10使用代理的IP: {'http': '222.223.182.66:8000', 'https': '222.223.182.66:8000'}
11{
12  "origin": "139.202.62.84, 222.223.182.66"
13}
14
15当前IP有效
16使用代理的IP: {'http': '51.158.186.242:8811', 'https': '51.158.186.242:8811'}
17{
18  "origin": "51.158.186.242"
19}
20
21当前IP有效
22使用代理的IP: {'http': '51.158.186.242:8811', 'https': '51.158.186.242:8811'}
23{
24  "origin": "51.158.186.242"
25}
26
27当前IP有效
28使用代理的IP: {'http': '222.223.182.66:8000', 'https': '222.223.182.66:8000'}
29HTTPConnectionPool(host='222.223.182.66', port=8000): Max retries exceeded with url: http://httpbin.org/ip (Caused by ProxyError('Cannot connect to proxy.', NewConnectionError('<urllib3.connection.HTTPConnection object at 0x00000247675067C8>: Failed to establish a new connection: [WinError 10060] 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败。')))
30当前IP无效
31使用代理的IP: {'http': '139.255.123.194:4550', 'https': '139.255.123.194:4550'}
32HTTPConnectionPool(host='139.255.123.194', port=4550): Max retries exceeded with url: http://httpbin.org/ip (Caused by ProxyError('Cannot connect to proxy.', NewConnectionError('<urllib3.connection.HTTPConnection object at 0x00000247674F55C8>: Failed to establish a new connection: [WinError 10060] 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败。')))
33当前IP无效
34使用代理的IP: {'http': '51.158.186.242:8811', 'https': '51.158.186.242:8811'}
35{
36  "origin": "51.158.186.242"
37}
38
39当前IP有效
40使用代理的IP: {'http': '51.158.186.242:8811', 'https': '51.158.186.242:8811'}
41{
42  "origin": "51.158.186.242"
43}
44
45当前IP有效
46使用代理的IP: {'http': '222.223.182.66:8000', 'https': '222.223.182.66:8000'}
47HTTPConnectionPool(host='222.223.182.66', port=8000): Max retries exceeded with url: http://httpbin.org/ip (Caused by ProxyError('Cannot connect to proxy.', NewConnectionError('<urllib3.connection.HTTPConnection object at 0x0000024767514908>: Failed to establish a new connection: [WinError 10060] 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败。')))
48当前IP无效
49

本文原文首发来自博客专栏Python实战，由本人转发至https://www.helloworld.net/p/GGguV7tALU4J，其他平台均属侵权，可点击https://blog.csdn.net/CUFEECR/article/details/105475019查看原文，也可点击https://blog.csdn.net/CUFEECR浏览更多优质原创内容。

Python 快速验证代理IP是否有效

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