How to redraw an existing image to a different image TkInter

[deanhystad]

I would use a label for this.

class Lamp(tk.Label):
    """Use images to display True/False value"""
    def __init__(self, window, on_img, off_img, **kvargs):
        super().__init__(window, image=off_img, **kvargs)
        self.images = (off_img, on_img)
        self._value = False

    @property
    def value(self):
        """Get current value"""
        return self._value

    @value.setter
    def value(self, value):
        """Set current value.  If value changed, update image to reflect new value"""
        if value != self._value:
            self._value = value
            self['image'] = self.images[int(self._value)]

def toggle():
    """Toggle value every second to demonstrate lamp"""
    lamp.value = not lamp.value
    lamp.after(1000, toggle)

root = tk.Tk()
lamp = Lamp(root, tk.PhotoImage(file=IMAGE_DIR/'ttt_x.png'), tk.PhotoImage(file=IMAGE_DIR/'ttt_o.png'))
lamp.pack()
toggle()
root.mainloop()