How to create a dialog box for exit button in Python using tkinter

In this tutorial, we will learn how to create a simple GUI application using Python’s Tkinter library and bind the exit button with a dialog box to confirm if the user really wants to exit the application.

Tkinter is a powerful and easy-to-use GUI library for creating desktop applications in Python. It provides a set of widgets and methods to build sophisticated user interfaces.

Let’s start by creating a simple GUI application with an exit button. First, make sure you have Tkinter installed on your system. You can install it using the following command:

pip install tk

Now, let’s create a new Python script and import the Tkinter module:

import tkinter as tk
from tkinter import messagebox

Next, let’s create a new window and add an exit button to it:

def on_exit():
    result = messagebox.askquestion("Exit", "Are you sure you want to exit?")
    if result == "yes":
        root.destroy()

root = tk.Tk()
root.title("Exit Button with Dialog Box")

exit_button = tk.Button(root, text="Exit", command=on_exit)
exit_button.pack()

root.mainloop()

In the above code, we have defined a function on_exit() that will be called when the exit button is clicked. Inside the function, we display a message box using messagebox.askquestion() with the title "Exit" and the message "Are you sure you want to exit?". If the user clicks "yes", we call the destroy() method on the root window to close the application.

Finally, we create the root window using tk.Tk(), set its title to "Exit Button with Dialog Box", create an exit button using tk.Button() with the text "Exit" and bind it to the on_exit() function using the command parameter.

Now, run the script and click on the exit button. You should see a dialog box asking if you really want to exit. Clicking "yes" will close the application.

This is how you can bind an exit button with a dialog box in a Tkinter application using Python. You can customize the dialog box message and add more functionality to it as needed. Tkinter provides a wide range of widgets and methods to create fully-functional GUI applications. You can explore more options and features of Tkinter to build interactive and user-friendly desktop applications.