utils.py 文件源码

def prompt_pick_backup(message):
    """Prompts the user to pick an existing database, and returns the
       selected choice database ID and its metadata"""

    # First load all the saved databases (splitting extension and path)
    saved_db = [path.splitext(path.split(f)[1])[0] for f in glob('backups/*.tlo')]

    # Then prompt the user
    print('Available backups databases:')
    for i, db_id in enumerate(saved_db):
        metadata = get_metadata(db_id)
        print('{}. {}, ID: {}'.format(i + 1,
                                      metadata.get('peer_name', '???'),
                                      db_id))

    db_id = saved_db[get_integer(message, 1, len(saved_db)) - 1]
    return db_id, get_metadata(db_id)