I want to have a yes/no loop in my code, but I'm having trouble doing it (python 3.3)

Question

Sorry I'm just a beginner at python so this is probably a very simple question, but I have a code and I want to loop it so after the code asks the user if they want to play again and the user inputs 'yes' to restart the code and 'no' to end the code. If they input anything other than yes or no it should ask tell them to enter yes or no then ask the question again. How would I do this exactly? (I do know about while and for loops but I'm not sure how I would use them in this way)

Answer 1

This is a simple one:

while True:
    a = input("Enter yes/no to continue")
    if a=="yes":
        gameplay()
        continue
    elif a=="no":
        break
    else:
        print("Enter either yes/no")

Where gameplay function contains the code to be executed

Answer 2

I would do it the following way:

while True:
    # your code
    cont = raw_input("Another one? yes/no > ")
    while cont.lower() not in ("yes","no"):
        cont = raw_input("Another one? yes/no > ")
    if cont == "no":
        break

If you use Python3 change raw_input to input.