import random

#
# constants, specifying the range in which the random number is picked
#

LOW = 1
HIGH = 100

#
# play the game until the user says to stop
#

play = "yes"
while (play == "yes"):
    #
    #  Pick a random target value that the user is trying to guess
    #
    target = random.randrange(LOW, HIGH+1)
    guess = target + 1
    num_guesses = 0

    min_accepted = 1
    max_accepted = 100
    
    #
    #  Loop until the user has guessed the correct number
    #
    while (guess != target):
        #
        #  Read the guess from the user
        #
        guess = input("Enter a number between " + str(min_accepted) + " and " + str(max_accepted) + ": ")
        while (guess < min_accepted) or (guess > max_accepted):
            print "That wasn't in the valid range."
            guess = input("Enter a number between " + str(min_accepted) + " and " + str(max_accepted) + ": ")

        num_guesses = num_guesses + 1

        #
        #  Advise the user if the guess was too high, too low, or just right
        #
        if (guess < target):
            print "That was too low!"
            min_accepted = guess + 1

        if (guess > target):
            print "That was too high!"
            max_accepted = guess - 1

    print "It took you",num_guesses,"guesses!"

    #
    # Ask the user whether he/she wants to play again
    #
    play = raw_input("Do you want to play again (yes or no)? ")