def build_bt_databin()

in floresv1/scripts/train.py [0:0]


def build_bt_databin(src, tgt, train_prefix, para_databin, output_folder):
    final_output = os.path.join(f'{output_folder}/data-bin')
    if os.path.exists(final_output):
        print(f"Databin path {final_output} exists")
        return final_output

    train_databin = os.path.join(output_folder, 'train-data-bin')
    os.makedirs(train_databin, exist_ok=True)
    call(f"ln -fs {train_prefix}.hypo {output_folder}/bt.{src}")
    call(f"ln -fs {train_prefix}.src {output_folder}/bt.{tgt}")

    call(f"""fairseq-preprocess \