def cmd_epsv(self, arg):
        with socket.socket(socket.AF_INET6) as sock:
            sock.bind((self.socket.getsockname()[0], 0))
            sock.listen(5)
            sock.settimeout(10)
            port = sock.getsockname()[1]
            self.push(port %'229 entering extended passive mode (|||%d|)')
            conn, addr = sock.accept()
            self.dtp = self.dtp_handler(conn, baseclass=self)
dataset/ETHPy150Open amrdraz/kodr/app/brython/www/src/Lib/test/test_ftplib.py/DummyFTPHandler.cmd_epsv/swapped operands of `%`