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