CODE EXAMPLE FOR PYTHON

preventing players to make entry in the same block in a python tic tac toe game

def space_check(board, position):
    return board[position] == '#'
def player_choice(board):
    choice = input("Please select an empty space between 1 and 9 : ")
    while not space_check(board, int(choice)):
        choice = input("This space isn't free. Please choose between 1 and 9 : ")
    return choice