python3 代理设置

前言：

用过很多种代理使用方式，这里总结一下.

1、urllib+socks5的代理1

    from sockshandler import SocksiPyHandler
    import socks
    from urllib.request import build_opener

    headers = {
        'Accept': 'text/html, application/xhtml+xml, image/jxr, */*',
        'Accept - Encoding': 'gzip, deflate',
        'Accept-Language': 'zh-Hans-CN, zh-Hans; q=0.5',
        # 'Connection': 'Keep-Alive',
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36'
    }

    url = 'https://www.google.com/'

    proxy_handler = SocksiPyHandler(proxytype=socks.SOCKS5, proxyaddr='***', proxyport=0000, username='***', password='***')
    opener = build_opener(proxy_handler)
    opener.addheaders = [(k, v) for k, v in headers.items()]
    resp = opener.open(url, timeout=30)

    resp_html = resp.read()
    print(resp_html.decode())

2、如果本机挂了Shadowsocks代理，代理端口为1080，则代码可以修改为：

　　proxy_handler = SocksiPyHandler(proxytype=socks.HTTP, proxyaddr='127.0.0.1', proxyport=1080)

3、urllib+socks5的代理2

    from urllib.request import ProxyHandler, build_opener

    headers = {
        'Accept': 'text/html, application/xhtml+xml, image/jxr, */*',
        'Accept - Encoding': 'gzip, deflate',
        'Accept-Language': 'zh-Hans-CN, zh-Hans; q=0.5',
        # 'Connection': 'Keep-Alive',
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36'
　　　}
 　　proxies = { "socks5": "socks5://user:pwd@ip:port" }

    url = 'https://www.baidu.com/'

    proxy_handler = ProxyHandler(proxies)

    opener = build_opener(proxy_handler)
    opener.addheaders = [(k, v) for k, v in headers.items()]
    resp = opener.open(url, timeout=30)

    resp_html = resp.read()
    print(resp_html.decode())

以上代码可以运行，但是感觉速度要慢一些。以上测试了，如果本地http代理，可以写成：

proxies = {
        "http": "http://127.0.0.1:1080/",
        "https": "https://127.0.0.1:1080/"
    }

4、使用socks设置全局代理

    import socks
    import socket

    socks.set_default_proxy(proxy_type=socks.SOCKS5, addr="***", port=000, rdns=True, username='***', password='***')
    socket.socket = socks.socksocket

安装socks：

 pip install PySocks

# 会安装 socks 和 sockshandler 两个模块

5、使用requests设置代理

    import requests as s

    headers = {
        'Accept': 'text/html, application/xhtml+xml, image/jxr, */*',
        'Accept - Encoding': 'gzip, deflate',
        'Accept-Language': 'zh-Hans-CN, zh-Hans; q=0.5',
        'Connection': 'Keep-Alive',
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36'
    }

    proxies = {
        "http": "socks5://user:pwd@ip:port/",
        "https": "socks5://user:pwd@ip:port/"
    }

    # proxies = {
    #     "socks5": "socks5://user:pwd@ip:port"
    # }

    # proxies = {
    #     "http": "http://127.0.0.1:1080/",
    #     "https": "https://127.0.0.1:1080/"
    # }

    # url = 'https://www.google.com/'
    # url = 'https://search.yahoo.com/'
    url = 'https://www.baidu.com/'

    resp = s.get(url=url, proxies=proxies, headers=headers)

    print(resp.text)