从张量返回一个空对象

Question

我是Python新手，我正在使用tensorflow在数据集中加载图像和标签

data_test = pathlib.Path(test_path)

all_test_paths = list(data_test.glob('*/*'))

all_test_paths = [str(path) for path in all_test_paths]

random.shuffle(all_test_paths)

label_names = sorted(item.name for item in data_test.glob('*/') if item.is_dir())
label_to_index = dict((name, index) for index, name in enumerate(label_names))

all_test_labels = [label_to_index[pathlib.Path(path).parent.name]
                    for path in all_test_paths]

all_test_paths=tf.convert_to_tensor(all_test_paths)

test_path_ds = tf.data.Dataset.from_tensor_slices(all_test_paths)

print(test_path_ds.output_shapes)

当我运行这部分代码时，它返回：()