How to use the portalocker.exceptions.AlreadyLocked function in portalocker

os.mkdir(LOCKDIR)
        # print(f"try locking {self.inode}")
        try:
            # portalocker.Lock has its own retry functionality,
            # But we cannot use it here, because we want to be able
            # to "request_abort".
            # It's a bit of a layered approach to build a high-level api
            # on top of another high-level api such as portalocker.Lock.
            # But since things are still evolving around here, it will leave it as is.
            self.lock = portalocker.Lock(
                filename=LOCKDIR + str(self.inode),
                fail_when_locked=True,
                flags=self._get_flags(),
            )
            self.lock.acquire()
        except portalocker.exceptions.AlreadyLocked:
            # print("Failed to lock")
            if self.high_priority:
                self._request_abort()
            return False
        # print(f"Managed to lock {self.inode}")
        self._remove_abort_request()
        return True