def cmd_list(self, arg):
        if arg:
            self.push((arg, arg) %'+OK %s %s')
        else:
            self.push('+OK')
            asynchat.async_chat.push(self, LIST_RESP)
dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/test/test_poplib.py/DummyPOP3Handler.cmd_list/swapped operands of `%`