Tkinter mainloop（）未运行-Python

Question

I have designed somewhat of an AI to play 2048. I would like to display the game state after each move the AI makes. To do so, I have created a GUI using Tkinter. First time using Tkinter, and as the title suggests, it seems like my 'updateDisplay' method blocks the mainloop() from being called. Any help would be appreciated.
The GUI will display if I remove the call to self.after(1000, self.updateDisplay(ai, game)) . However, it will then obviously not update

class GameGrid(Frame):
    def __init__(self,ai, game):
        Frame.__init__(self)
        self.game = game
        self.ai = ai
        self.grid()
        self.master.title('2048')

        #self.gamelogic = gamelogic

        self.grid_cells = []
        self.init_grid()
        self.update_grid_cells()
        self.after(1000, self.updateDisplay(ai, game))
        self.mainloop()


    def updateDisplay(self, ai, game):
        game.move(ai.nextMove(4))
        print "hello"
        for i in range(GRID_LEN):
            for j in range(GRID_LEN):
                new_number = int(game.state[i][j])
                if new_number == 0:
                    self.grid_cells[i][j].configure(text="", bg=BACKGROUND_COLOR_CELL_EMPTY)
                else:
                    self.grid_cells[i][j].configure(text=str(new_number), bg=BACKGROUND_COLOR_DICT[new_number], fg=CELL_COLOR_DICT[new_number])
        if game.over:
            if game.won:
                print 'You Won!'
            else:
                print 'Game Over :( Score:', game.score
            return 0
        else: 
            print "test"
            self.after(10000, self.updateDisplay(ai, game))               



if __name__ == "__main__":
    game = Game()
    ai = AlphaBetaRecursive(game)
    gui = GameGrid(ai, game)

Answer 1

When you do self.after(1000, self.updateDisplay(ai, game)) , you're calling self.updateDisplay immediately rather than passing the function as an argument to after . You need to get rid of the inner parentheses! According to the docs, after does take extra *args , but it doesn't actually say what is done with them (maybe they're passed to the callback? I'm not sure). Since ai and game are already attributes of self , you don't actually need to pass them as arguments at all. Just use:

self.after(1000, self.updateDisplay)

And change the definition of updateDisplay to:

def updateDisplay(self):
    # use self.ai and self.game rather than ai and game in the implementation of the function
    ...