How to only close TopLevel window in Python Tkinter?

Question

Use the Python Tkinter , create a sub-panel (TopLevel) to show something and get user input, after user inputed, clicked the "EXIT" found the whole GUI (main panel) also destory. How to only close the toplevel window?

from tkinter import *

lay=[]
root = Tk()
root.geometry('300x400+100+50')

def exit_btn():
    top = lay[0]
    top.quit()
    top.destroy()

def create():
    top = Toplevel()
    lay.append(top)

    top.title("Main Panel")
    top.geometry('500x500+100+450')
    msg = Message(top, text="Show on Sub-panel",width=100)
    msg.pack()

    btn = Button(top,text='EXIT',command=exit_btn)
    btn.pack()

Button(root, text="Click me,Create a sub-panel", command=create).pack()
mainloop()

Read [Is this bad programming practice in tkinter?](https://stackoverflow.com/a/25454433/7414759) — stovfl, Jan 17 '19 at 22:28

score 12 · Accepted Answer · answered Jan 17 '19 at 22:58

This seemed to work for me:

from tkinter import *

lay=[]
root = Tk()
root.geometry('300x400+100+50')

def create():

    top = Toplevel()
    lay.append(top)

    top.title("Main Panel")
    top.geometry('500x500+100+450')
    msg = Message(top, text="Show on Sub-panel",width=100)
    msg.pack()

    def exit_btn():

        top.destroy()
        top.update()

    btn = Button(top,text='EXIT',command=exit_btn)
    btn.pack()


Button(root, text="Click me,Create a sub-panel", command=create).pack()
mainloop()

score 9 · Answer 2 · answered Jan 17 '19 at 22:47

9

Your only mistake is that you're calling top.quit() in addition to calling top.destroy(). You just need to call top.destroy(). top.quit() will kill mainloop, causing the program to exit.

answered Jan 17 '19 at 22:47

Bryan Oakley

370,779
53
539
685

score 2 · Answer 3 · answered Jan 17 '19 at 22:26

2

You can't close to root window. When you will close root window, it is close all window. Because all sub window connected to root window.

You can do hide root window.

Hide method name is withdraw(), you can use show method for deiconify()

# Hide/Unvisible
root.withdraw()

# Show/Visible
root.deiconify()

answered Jan 17 '19 at 22:26

Fatih Mert Doğancan

1,016
14
21

Much thanks for you sharing the solution, I can use it in another case. – baliao Jan 17 '19 at 23:18

score 0 · Answer 4 · answered May 29 '20 at 11:07

0

you can use lambda function with the command it's better than the normal function for your work

ex)

btn = Button(top,text='EXIT',command=exit_btn)

change the exit_btn to lambda :top.destroy()

answered May 29 '20 at 11:07

MR. Ant

1

score 0 · Answer 5 · answered Nov 24 '20 at 21:17

In my case, I passed a callback function from the parent class, and once the submit button is clicked it will the callback function passing the return values.

The callback function will call the destroy method on the top-level object, thus in that way you'll close the frame and have the return value.

How to only close TopLevel window in Python Tkinter?

5 Answers5

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