Closing a window in python 3.7.2 with tkinter

Question

I've made a program in python with Tkinter that allows you to free draw and choose different colors. I decided to make a button that would close the window instead of clicking the exit button in the top right corner. My question is how do I make the window close when the button is pressed?

Answer 1

If you are using a main loop for your application, then you can use the .destroy() method to release all the resources associated with the window and close the application. You call this method within the command function for your button like so:

from tkinter import *

root = Tk()
frame = Frame(root)
frame.pack(side=LEFT)
button = Button(frame, text="Exit", command=exit)
button.pack()
root.mainloop()

def exit():
    root.destroy()

That should close your window. Optionally, the destroy() method may also be used at the end of your main loop if the X button of your application won't close the window immediately.

See these examples for more info:

• http://effbot.org/tkinterbook/widget.htm#Tkinter.Widget.destroy-method
• http://effbot.org/tkinterbook/tkinter-hello-again.htm