def cmd_pass(self, arg):
        if arg not in "python":
            self.push("-ERR wrong password")
        self.push('+OK 10 messages')
dataset/ETHPy150Open amrdraz/kodr/app/brython/www/src/Lib/test/test_poplib.py/DummyPOP3Handler.cmd_pass/operator `!=` -> `not in`