# Guess my number game

class GuessNumberGame(object):
    """Class for the guess my number game."""

    def welcome(self):
        """Welcome the user."""
        print("Welcome to the guess my number game!\n")
        print("I will think of a number between 1 and 100, and it is your job to figure out which number I am thinking of.\n")
        print("Type in a 0 at any time to exit.")

    def rand_number(self):
        """Generate a random number."""
        import random
        random_number = random.randrange(1, 101)
        return random_number

    def guesses(self):
        """User tries to guess the number."""
        import sys
        user_guess = None
        number_to_guess = self.rand_number()
        while user_guess != number_to_guess:
            try:
                user_guess = int(input("Your guess: "))
            except ValueError as e:
                print(e)
                continue
            if user_guess == number_to_guess:
                print("Congratulations! That is it.")
            elif user_guess < number_to_guess:
                print("Higher!")
            elif user_guess == 0:
                sys.exit("Good bye.")
            else:
                print("Lower!")

def main():
    start_guess_number = GuessNumberGame()
    start_guess_number.welcome()
    start_guess_number.guesses()

main()