def _parse_key(self, key, create=False):
        try:
            key = key.strip('/').split('/')
        except __HOLE__:
            # assume key is already list of path elements
            pass
        return self._resolve_fs(key[:-1], create), key[-1]
dataset/ETHPy150Open cidles/graf-python/src/graf/annotations.py/FeatureStructure._parse_key