apple_receipt_validator_step9.py

    shared_secret = None
    use_sandbox = False

    try:
        opts, args = getopt.getopt(sys.argv[2:],"s:", ["secret=", "use_sandbox"])
    except getopt.GetoptError:
        print(help_message)
        sys.exit(2)

    for opt, arg in opts:
        if opt in ("--use_sandbox"):
            use_sandbox = True
        if opt in ("-s", "--secret"):
            shared_secret = arg