guess.py

from random import randint
max = randint(1, 1000)
number = randint(0, max)
guess = -1
print "I'm thinking of a number between 0 and %d!" %max
while True:
    try:
        guess = int(raw_input("Guess a Number: "))
        if guess==number:
            print "Correct!"
            break
        elif guess>number:
            print "Too High!"
        else:
            print "Too Low!"
    except ValueError:
        print "That's not a number!"