#! -*- encoding:utf-8 -*-    from urllib import request    # 要访问的目标页面    targetUrl = "http://httpbin.org/ip"    # 代理服务器(产品官网 www.16yun.cn)    proxyHost = "t.16yun.cn"    proxyPort = "31111"    # 代理验证信息    proxyUser = "username"    proxyPass = "password"    proxyMeta = "http://%(user)s:%(pass)s@%(host)s:%(port)s" % {        "host" : proxyHost,        "port" : proxyPort,        "user" : proxyUser,        "pass" : proxyPass,    }    proxy_handler = request.ProxyHandler({        "http"  : proxyMeta,        "https" : proxyMeta,    })        
    opener = request.build_opener(proxy_handler)    request.install_opener(opener)    resp = request.urlopen(targetUrl).read()    print (resp)