I am having trouble vaildating my code.I need my code to loop untill a valid answer is inputted

Question

I am struggling with this piece of Python code. The problem is,when a user enters something wrong I need my code to keep looping until they input a valid answer. This is how the

Answer 1

Update:

Here is the first part of your code with a while (condition):

Order = [ 'No drink', 'No food' ]
Yesses = [ 'y', 'yes', 'yep', 'okay', 'sure' ]
DRINK = 0
FOOD = 1

print("Welcome to Hungary house!")

print("")
print("First, let me get your drink order, if any.")

answer = input("Would you like something to drink? ").lower()

if answer in Yesses:
    print("What drink would you prefer?")
    print ("1: Fanta")
    print ("2: Coke")
    print ("3: Pepsi")
    print ("4: Sprite")

        correct = False

    while (!correct):
        choice = input("Please enter a drink from the menu above\n").lower()

        if (choice == "1" or choice == "fanta"):
            Order[DRINK] = "Fanta"
            correct = True
        elif (choice == "2" or choice == "coke"):
            Order[DRINK] = "Coke"
            correct = True
        elif (choice == "3" or choice == "pepsi"):
            Order[DRINK] = "Pepsi"
            correct = True
        elif (choice == "4" or choice == "sprite"):
            Order[DRINK] = "Sprite"
            correct = True


print ("You have chosen: " + Order[DRINK])

Original answer: So if it's using input() you can get away with doing a while loop until the statement is true. So put all the code in a loop and fulfill the Boolean when correct. For example:

correct = false
while (!correct):
    var = input ("your statement")
    if var == "good":
        correct = true
#next stuff