Python word guessing game

Question

I don't know how to display uppercase if the letters are in the same spot and lowercase if the guessing letters are in the answer.

It shoud look like this
What is your guess? abcdefghijklmnopqrstuvwxyz
Sorry, the guess must have the same number of letters as the secret word.

What is your guess? qqcqqqqqqqqq
Your hint is: _ _ c _ _ _ _ _ _ _ _ _
What is your guess? cheeseqqqqqq
Your hint is: CHEESE _ _ _ _ _ _ _
What is your guess? cheeseburger
Congratulations! You guessed it!

Answer 1

What is the exact difficulty? Is it to tell if the guessed letter is in the right position or to make it upper case?