# Check that users have entered a valid
# option based on a list
# from B_01_Roll_it_v1 import want_instructions
# from C_03_Interger_checker_v1 import error


def string_checker(question, valid_ans):

    error = f"Please enter a valid option from the following list: {valid_ans}"

    while True:

        # Get user response and make sure it's lowercase
        user_response = input(question ).lower()
        
        for item in valid_ans:
            # check if the user response is a word in the list
            if item == user_response:
                return item

            # check if the user response is a word in the list
            # the first letter of an item in the list
            elif user_response == item[0]:
                return item

        # print error if user does not enter something that is valid
        print(error)
        print()

# Main routine goes here

yes_no = ["yes", "no"]
rps_list = ["rock", "paper", "scissors", "xxx"]

want_instructions = string_checker("Do you want to see the instructions? ",
                                   yes_no)

print("You choose: ", want_instructions)

uesr_choice = string_checker("Choose: ", rps_list)
print("You choose: ", uesr_choice)