from random import randint

guesses = 10
def numGuess():
    #calls guess function with a randomly generated number, and specified guesses
    return numGuessHelper(randint(1, 20), guesses)

def inputHelper(prompt):
    while True:
        try:
            value = int(input(prompt))
        except ValueError:
            print("Enter only integers please.")
            continue
        if value < 0 or value > 20:
            print("Your guess was outside the possible bounds, try again.")
        else:
            break
    return value

def numGuessHelper(n, g):
    #if there are guesses left, then true
    if g > 0:
        #returns the guess if it isn't an error and is a viable answer
        temp = inputHelper("Guess a number between 1 and 20: ")
        #returns if the guess is equal to the random number
        if temp == n:
            return "You have guessed the correct answer."
        #otherwise removes a guess and continues the function
        else:
            print("Incorrect. You have", g-1, "more guesses.")
            return numGuessHelper(n, g-1)
    #if there are no guesses left then the function ends
    else:
        return "You have used up all your guesses."

print(numGuess())