from Gui import *

size = 3
player = 'X'
def move(row, col):
    global player, button
    if button[row][col].cget('text') == "":
        button[row][col].configure(text=player)
        if player == 'X':
            player = 'O'
        else:
            player = 'X'

g = Gui()
g.title('Tic-Tac-Toe')
g.gr(size, cweights=[1]*size, rweights=[1]*size)
button = [None]*size
for i in range(size):
    button[i] = [None]*size
    for j in range(size):
        button[i][j] = g.bu(text="",
                            width=5,
                            height=3,
                            command=Callable(move, i, j))

g.endgr()
g.mainloop()