[python] How do I close a tkinter window?

How do I end a Tkinter program? Let's say I have this code:

from Tkinter import *

def quit():
    # code to exit

root = Tk()
Button(root, text="Quit", command=quit).pack()
root.mainloop()

How should I define the quit function to exit my application?

This question is related to python tkinter

The answer is


import sys
from Tkinter import *
def quit():
    sys.exit()
root = Tk()
Button(root, text="Quit", command=quit).pack()
root.mainloop()

Should do what you are asking.


There is a simple one-line answer:

Write - exit() in the command

That's it!


The easiest way would be to click the red button (leftmost on macOS and rightmost on Windows). If you want to bind a specific function to a button widget, you can do this:

class App:
    def __init__(self, master)
        frame = Tkinter.Frame(master)
        frame.pack()
        self.quit_button = Tkinter.Button(frame, text = 'Quit', command = frame.quit)
        self.quit_button.pack()

Or, to make things a little more complex, use protocol handlers and the destroy() method.

import tkMessageBox

def confirmExit():
    if tkMessageBox.askokcancel('Quit', 'Are you sure you want to exit?'):
        root.destroy()
root = Tk()
root.protocol('WM_DELETE_WINDOW', confirmExit)
root.mainloop()

import Tkinter as tk

def quit(root):
    root.destroy()

root = tk.Tk()
tk.Button(root, text="Quit", command=lambda root=root:quit(root)).pack()
root.mainloop()

you only need to type this:

root.destroy()

and you don't even need the quit() function cause when you set that as commmand it will quit the entire program.


try this.

    self.parent.destroy() 
    self.parent.quit()

maybe you send root like parameter to a frame that you did. so If you want to finish it you have to call your father so he can close it all, instead of closing each one of his children.


def quit()
    root.quit()

or

def quit()
    root.destroy()

I use below codes for the exit of Tkinter window:

from tkinter import*
root=Tk()
root.bind("<Escape>",lambda q:root.destroy())
root.mainloop()

or

from tkinter import*
root=Tk()
Button(root,text="exit",command=root.destroy).pack()
root.mainloop()

or

from tkinter import*
root=Tk()
Button(root,text="quit",command=quit).pack()
root.mainloop()

or

from tkinter import*
root=Tk()
Button(root,text="exit",command=exit).pack()
root.mainloop()

For menu bars:

def quit():
    root.destroy()

menubar = Menu(root)
filemenu = Menu(menubar, tearoff=0)

filemenu.add_separator()

filemenu.add_command(label="Exit", command=quit)
menubar.add_cascade(label="menubarname", menu=filemenu)
root.config(menu=menubar)
root.mainloop()

I think you wrongly understood the quit function of Tkinter. This function does not require you to define.

First, you should modify your function as follows:

from Tkinter import *
root = Tk()
Button(root, text="Quit", command=root.quit).pack()
root.mainloop()

Then, you should use '.pyw' suffix to save this files and double-click the '.pyw' file to run your GUI, this time, you can end the GUI with a click of the Button, and you can also find that there will be no unpleasant DOS window. (If you run the '.py' file, the quit function will fail.)


In idlelib.PyShell module, root variable of type Tk is defined to be global

At the end of PyShell.main() function it calls root.mainloop() function which is an infinite loop and it runs till the loop is interrupted by root.quit() function. Hence, root.quit() will only interrupt the execution of mainloop

In order to destroy all widgets pertaining to that idlelib window, root.destroy() needs to be called, which is the last line of idlelib.PyShell.main() function.


The usual method to exit a Python program:

sys.exit()

(to which you can also pass an exit status) or

raise SystemExit

will work fine in a Tkinter program.


Of course you can assign the command to the button as follows, however, if you are making a UI, it is recommended to assign the same command to the "X" button:

def quit(self): # Your exit routine
   self.root.destroy()

self.root.protocol("WM_DELETE_WINDOW", self.quit) # Sets the command for the "X" button 

Button(text="Quit", command=self.quit) # No ()


from tkinter import *

def quit(root):
    root.close()

root = Tk()
root.title("Quit Window")

def quit(root):
    root.close()

button = Button(root, text="Quit", command=quit.pack()

root.mainloop()

In case anyone wants to bind their Escape button to closing the entire GUI:

master = Tk()
master.title("Python")

def close(event):
    sys.exit()

master.bind('<Escape>',close)
master.mainloop()

import Tkinter as tk

def quit(root):
    root.destroy()

root = tk.Tk()
tk.Button(root, text="Quit", command=lambda root=root:quit(root)).pack()
root.mainloop()

raise SystemExit

this worked on the first try, where

self.destroy()
root.destroy()

did not


Illumination in case of confusion...

def quit(self):
    self.destroy()
    exit()

A) destroy() stops the mainloop and kills the window, but leaves python running

B) exit() stops the whole process

Just to clarify in case someone missed what destroy() was doing, and the OP also asked how to "end" a tkinter program.


root.destroy will work.
root.quit will also work.

In my case I had

quitButton = Button(frame, text = "Quit", command = root.destroy)

Hope it helps.


def quit1():
     root.destroy()

Button(root, text="Quit", command=quit1).pack()
root.mainloop()

You can use:

root.destroy()

Or

root.quit()

If that does not work, change root to what ever your variable was at the start of your program

import tkinter

main = Tk()

main.destroy()

main.mainloop

Code snippet below. I'm providing a small scenario.

import tkinter as tk
from tkinter import *

root = Tk()

def exit():
    if askokcancel("Quit", "Do you really want to quit?"):
        root.destroy()

menubar = Menu(root, background='#000099', foreground='white',
               activebackground='#004c99', activeforeground='white')

fileMenu = Menu(menubar,  tearoff=0, background="grey", foreground='black',
                activebackground='#004c99', activeforeground='white')
menubar.add_cascade(label='File', menu=fileMenu)

fileMenu.add_command(label='Exit', command=exit)

root.config(bg='#2A2C2B',menu=menubar)

if __name__ == '__main__':
    root.mainloop()

I have created a blank window here & add file menu option on the same window(root window), where I only add one option exit.

Then simply run mainloop for root.

Try to do it once


Try this:

from Tkinter import *
import sys
def exitApp():
    sys.exit()
root = Tk()
Button(root, text="Quit", command=exitApp).pack()
root.mainloop()