Closing a window and opening a new one via a button in Tkinter

Question

I was wondering if there was a way to open a new instance of Toplevel() and close the current one via the press of a button, i.e. close the current window and open a new one

Answer 1

Yes, it's possible. To close an instance of Toplevel simply destroy it. You'll need to save a reference to the window. In your case I would either have Q1 destroy the window, or make a separate function that calls Q1 and then destroys the window. It all depends on what the main purpose of Q1 is.

For example:

def start(self):
    ...
    self.new_window = name_w
    ...

def quit_window(self):
    self.Q1()
    self.new_window.destroy()

If you have multiple of these you might need to store the window references in a list or dictionary, but the basic mechanism is the same: use .destroy() to destroy the window.

This isn't the only way, of course. You could use lambda or functools.partial and a function that accepts the name of the window to destroy, or you could use nested functions, etc.