if __name__ == '__main__':
    parser = argparse.ArgumentParser(description='Converting json files into csv for Tableau processing')
    parser.add_argument(
        "-j", "--json", dest="json", help="/Users/viktorija/PycharmProjects/json_conv_csv/", metavar="FILE", required=True)

    args = parser.parse_args()

    with open(args.json, "r") as inputFile:  # open json file
        json_data = json.loads(inputFile.read())  # load json content

    final_data = json_normalize(flat_json, 'food')
    with open(args.json.replace(".json", ".csv"), "w") as outputFile:  # open csv file
    # saving DataFrame to csv
        final_data.to_csv(outputFile, encoding='utf8', index=False)