#print instructions to the user
print 'Guess a number from 1 to 1000 and I will guess what it is in less than 10 tries! After each guess, tell me either "correct", "lower", or "higher".'

#here's the guesser...

def guess():
    guesses = 1
    low = 0
    high = 1000
    trick = high-low           
    while guesses < 11:
        lower = trick/2+low    #originally 250...
        higher = trick+lower   #originally 750...
        print trick
        correct = trick
        
        question = "Is this your number? "
        user_answer = input(question)

        if user_answer == lower:
            high = trick
            trick = lower
            guesses = guesses + 1
                                    
        elif user_answer == higher:
            low = trick
            trick = higher
            guesses = guesses + 1
            
        elif user_answer == correct:
                print "Sweet! That took me", guesses, "tries!"
                guesses = 10
        
        else:
            print 'Please enter "correct", "lower", or "higher"'

    while not guesses < 11:
        print "I'm a failure..."
        guesses = 10

guess()