Python基于scrapy采集数据时使用代理服务器的方法

本文实例讲述了Python基于scrapy采集数据时使用代理服务器的方法。分享给大家供大家参考。具体如下：

    # To authenticate the proxy, 
    #you must set the Proxy-Authorization header. 
    #You *cannot* use the form http://user:pass@proxy:port 
    #in request.meta['proxy']
    import base64
    proxy_ip_port = "123.456.789.10:8888"
    proxy_user_pass = "awesome:dude"
    request = Request(url, callback=self.parse)
    # Set the location of the proxy
    request.meta['proxy'] = "http://%s" % proxy_ip_port
    # setup basic authentication for the proxy
    encoded_user_pass=base64.encodestring(proxy_user_pass)
    request.headers['Proxy-Authorization'] = 'Basic ' + encoded_user_pass

希望本文所述对大家的python程序设计有所帮助。