def oavgjort(spelplan): for rad in spelplan: for element in rad: if element == ' ': return False else: return True

I'm doing a game tic toc toe. The function will make it tie for the players when all kolumn are filled. The problem is that as soon as a player starts to fill in a box, the game becomes tie immediately. What did I do wrong?

A B C 1 X 2 3 Its a tie!