read_LaMemDataset.py 文件源码

def read_dataset(data_dir):
    pickle_filename = "lamem.pickle"
    pickle_filepath = os.path.join(data_dir, pickle_filename)
    if not os.path.exists(pickle_filepath):
        utils.maybe_download_and_extract(data_dir, DATA_URL, is_tarfile=True)
        lamem_folder = (DATA_URL.split("/")[-1]).split(os.path.extsep)[0]
        result = {'images': create_image_lists(os.path.join(data_dir, lamem_folder))}
        print ("Pickling ...")
        with open(pickle_filepath, 'wb') as f:
            pickle.dump(result, f, pickle.HIGHEST_PROTOCOL)
    else:
        print ("Found pickle file!")

    with open(pickle_filepath, 'rb') as f:
        result = pickle.load(f)
        training_records = result['images']
        del result

    return training_records