Tkinter删除小部件而不是仅仅隐藏

So im just starting out with tkinter, and a big problem im having is removing a widget instead of just making it invisible with grid_forget. Is it possible to do this as currently when i later add more widgets after removing the first, the first is still taking up space above the second, despite using the same column and rows.So im just starting out with tkinter, and a big