Python 快速验证代理IP是否有效

喜欢ヅ旅行 2023-07-24 14:54 10阅读 0赞

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：

import requests
    import random
    import time
    
    http_ip = [
        '118.163.13.200:8080',
        '222.223.182.66:8000',
        '51.158.186.242:8811',
        '171.37.79.129:9797',
        '139.255.123.194:4550'
    ]
    
    for i in range(10):
        try:
            ip_proxy = random.choice(http_ip)
            proxy_ip = { 
                'http': ip_proxy,
                'https': ip_proxy,
            }
            print('使用代理的IP:', proxy_ip)
            response = requests.get("http://httpbin.org/ip", proxies=proxy_ip).text
            print(response)
            print('当前IP有效')
            time.sleep(2)
        except Exception as e:
            print(e.args[0])
            print('当前IP无效')
            continue

运行结果如下：

使用代理的IP: { 'http': '118.163.13.200:8080', 'https': '118.163.13.200:8080'}
    HTTPConnectionPool(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。')))
    当前IP无效
    使用代理的IP: { 'http': '51.158.186.242:8811', 'https': '51.158.186.242:8811'}
    { 
      "origin": "51.158.186.242"
    }
    
    当前IP有效
    使用代理的IP: { 'http': '222.223.182.66:8000', 'https': '222.223.182.66:8000'}
    { 
      "origin": "139.202.62.84, 222.223.182.66"
    }
    
    当前IP有效
    使用代理的IP: { 'http': '51.158.186.242:8811', 'https': '51.158.186.242:8811'}
    { 
      "origin": "51.158.186.242"
    }
    
    当前IP有效
    使用代理的IP: { 'http': '51.158.186.242:8811', 'https': '51.158.186.242:8811'}
    { 
      "origin": "51.158.186.242"
    }
    
    当前IP有效
    使用代理的IP: { 'http': '222.223.182.66:8000', 'https': '222.223.182.66:8000'}
    HTTPConnectionPool(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。')))
    当前IP无效
    使用代理的IP: { 'http': '139.255.123.194:4550', 'https': '139.255.123.194:4550'}
    HTTPConnectionPool(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。')))
    当前IP无效
    使用代理的IP: { 'http': '51.158.186.242:8811', 'https': '51.158.186.242:8811'}
    { 
      "origin": "51.158.186.242"
    }
    
    当前IP有效
    使用代理的IP: { 'http': '51.158.186.242:8811', 'https': '51.158.186.242:8811'}
    { 
      "origin": "51.158.186.242"
    }
    
    当前IP有效
    使用代理的IP: { 'http': '222.223.182.66:8000', 'https': '222.223.182.66:8000'}
    HTTPConnectionPool(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。')))
    当前IP无效