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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def do_create(config, config_dir):
 """ CLI action "create new configuration". """

    if os.path.exists(config_dir):
        print "Configuration '{}' already exists.".format(config)
        exit(1)
    os.makedirs(config_dir)
    print "Configuration directory created."

    url = raw_input("RSS URL for processing []: ")
    torrent_dir = raw_input("Output directory for found .torrent files [{}]: "\
        .format(DEFAULT_TORRRENT_DIR)) or DEFAULT_TORRRENT_DIR
    update_interval = raw_input("Update interval (mins) [{}]: "\
        .format(DEFAULT_UPDATE_INTERVAL)) or DEFAULT_UPDATE_INTERVAL

    editor = os.environ["EDITOR"]

    config_filter = os.path.join(config_dir, 'filter')
    if confirm("Do you want to create filters list?", False):
        call([editor, config_filter])
        print "Filter configuration has been saved."

    config_blacklist = os.path.join(config_dir, 'blacklist')
    if confirm("Do you want to create blacklist?", False):
        call([editor, config_filter])
        print "Blacklist configuration has been saved."

    config_file = os.path.join(config_dir, 'config')
    config_data = json.dumps({
        "url": url,
        "torrent_dir": torrent_dir,
        "update_interval": update_interval
    }, sort_keys=True, indent=4, separators=(',', ': '))
    with open(config_file, 'w') as f:
        f.write(config_data)

    ct = CronTab(user=True)
    cmd = "{} {} -e {}".format(sys.executable,
                               os.path.abspath(__file__),
                               config)
    job = ct.new(command=cmd)
    job.minute.every(update_interval)
    job.enable()
    ct.write()
    print "Crontab updated."

    print "Config '{}' has been saved.".format(config)