Python help thread?

No, doesn't work, but thanks for the help! I might just have to break down and actually read this teachers horrible explanations.

now?

Code:

from random import randint

rnum = randint(1,20)

for i in range(1, 4):
    guess = input("Guess a number")
        if guess != rnum:
            print "Guess again!"
        else:
            print "You got it!"
            break
else:
    print "Used up all 3 guesses"