python---urllib2使用代理

# coding:utf-8import urllib2import sysvar_proxyswitch= Truevar_httpproxy_handler = urllib2.ProxyHandler({"http" : "帐号:密码@101.251.198.244:8080"})var_nohttpproxy_handler = urllib2.ProxyHandler({})if var_proxyswitch:    var_opener = urllib2.build_opener(var_httpproxy_handler)else:    var_opener = urllib2.build_opener(var_nohttpproxy_handler)urllib2.install_opener(var_opener)var_quest = urllib2.Request("http://www.baidu.com")var_response = urllib2.urlopen(var_quest)print(var_response.read().decode("utf8"))