def validate_local_part(self, part):
        part, err = self._apply_common_rules(part, maxlength=64)
        if err:
            return part, err % 'Invalid local part: %s'
        if not self.local_part_regex.search(part):
            return part, 'Invalid local part.'
        return part, ''
        # We don't go lowercase because the local part is case-sensitive.
dataset/ETHPy150Open marrow/mailer/marrow/mailer/validator.py/EmailValidator.validate_local_part/swapped operands of `%`