Opener.py 文件源码

def add_proxy(self, addr, proxy_type='all',
                  user=None, password=None):
        """Add proxy"""
        if proxy_type == 'all':
            self.proxies = {
                'http': addr,
                'https': addr,
                'ftp': addr
            }
        else:
            self.proxies[proxy_type] = addr
        proxy_handler = urllib2.ProxyHandler(self.proxies)
        self.__build_opener()
        self.opener.add_handler(proxy_handler)

        if user and password:
            pwd_manager = urllib2.HTTPPasswordMgrWithDefaultRealm()
            pwd_manager.add_password(None, addr, user, password)
            proxy_auth_handler = urllib2.ProxyBasicAuthHandler(pwd_manager)
            self.opener.add_handler(proxy_auth_handler)

        urllib2.install_opener(self.opener)