gameboard1 = []
gameboard2 = []

def make_board(board):
    for x in range(5):
        board.append(["O"] * 5)

make_board(gameboard1)

def make_board(*board):
#the goal was to be able to have a function to make multiple boards at once, without having to do it line by line.
#Throws error AttributeError: 'tuple' object has no attribute 'append'
    for x in range(5):
        board.append(["O"] * 5)

make_board(gameboard1, gameboard2)