label_field.py 文件源码

def __init__(self,
                 label: Union[str, int],
                 label_namespace: str = 'labels',
                 skip_indexing: bool = False) -> None:
        self.label = label
        self._label_namespace = label_namespace
        self._label_id = None
        self._maybe_warn_for_namespace(label_namespace)

        if skip_indexing:
            if not isinstance(label, int):
                raise ConfigurationError("In order to skip indexing, your labels must be integers. "
                                         "Found label = {}".format(label))
            else:
                self._label_id = label
        else:
            if not isinstance(label, str):
                raise ConfigurationError("LabelFields must be passed a string label if skip_indexing=False. "
                                         "Found label: {} with type: {}.".format(label, type(label)))