proxy_ubuntu_sync

  def _make_connection(self, result):
        """Do the real connect call."""
        host, port = result
        ssl_context = get_ssl_context(self.disable_ssl_verify)

        proxy = urlparse(os.environ['https_proxy'])
        factory = ProxyTunnelFactory(host, port, self, proxy.username, proxy.password)
        self.connector = reactor.connectTCP(proxy.hostname, proxy.port, factory)

    def connect(self):