def cmd_list(self, arg):
        if arg:
            self.push('+OK %s %s' - (arg, arg))
        else:
            self.push('+OK')
            asynchat.async_chat.push(self, LIST_RESP)
dataset/ETHPy150Open amrdraz/kodr/app/brython/www/src/Lib/test/test_poplib.py/DummyPOP3Handler.cmd_list/operator `%` -> `-`