Tkinter supports a variety of methods to perform various tasks. It also offers some universal method.
destroy()
is a universal widget method i.e we can use this method with any of the available widgets as well as with the main tkinter window.
Syntax:
widget_object = Widget(parent, command = widget_class_object.destroy)
This method can be used with after() method.
Code #1: destroy() method passed as command
from tkinter import *
from tkinter.ttk import *
root = Tk()
btn1 = Button(root, text = "Button 1" , command = root.destroy)
btn1.pack(pady = 10 )
btn2 = Button(root, text = "Button 2" , command = btn1.destroy)
btn2.pack(pady = 10 )
mainloop()
|
Output:

As you may observe, in above code that the command that is passed in button-2 is to destroy button-1 so as soon as you press button-2, button-2 will get destroyed.

Code #2:destroy() method with after() method
from tkinter import *
from tkinter.ttk import *
root = Tk()
btn1 = Button(root, text = "Button 1" )
btn1.pack(pady = 10 )
btn2 = Button(root, text = "Button 2" )
btn2.pack(pady = 10 )
btn1.after( 3000 , btn1.destroy)
btn2.after( 6000 , btn2.destroy)
mainloop()
|
Output:
From output you may see that both the widgets are destroyed after a certain time limit and only root window will be left empty.
Note: There is another method available quit()
which do not destroy widgets but it exits the tcl/tk interpreter i.e it stops the mainloop().