How to use the buku.BukuCrypt.encrypt_file function in buku

setup_logger(logger)

        # Enable prompt with reverse video
        promptmsg = '\x1b[7mbuku (? for help)\x1b[0m '

    # Set up debugging
    if args.debug:
        logger.setLevel(logging.DEBUG)
        logdbg('Version %s', __version__)
    else:
        logging.disable(logging.WARNING)
        urllib3.disable_warnings()

    # Handle encrypt/decrypt options at top priority
    if args.lock is not None:
        BukuCrypt.encrypt_file(args.lock)
    elif args.unlock is not None:
        BukuCrypt.decrypt_file(args.unlock)

    # Set up title
    if args.title is not None:
        if args.title:
            title_in = ' '.join(args.title)
        else:
            title_in = ''

    # Set up tags
    if args.tag is not None:
        if args.tag:
            tags_in = args.tag
        else:
            tags_in = [DELIM, ]