regex.py 文件源码

def search(self, data: str, *a: Any, **kw: Any) -> Either[str, 'Match']:
        return (
            Maybe(self.rex.search(data, *a, **kw))
            .to_either('`{}` does not contain `{}`'.format(data, self.spec)) /
            L(Match)(self, _, data)
        )