How to exit from Python using a Tkinter Button?

To exit from Python using a Tkinter button, you can use either the destroy() or quit() method. Both methods close the application window, but they work differently under the hood.

Steps

• Import the tkinter library and create an instance of tkinter frame.

• Set the size of the frame using geometry method.

• Define a function close() to close the window. Call the method win.destroy() inside close().

• Next, create a button and call the close() function.

• Finally, run the mainloop of the application window.

Method 1: Using destroy()

The destroy() method completely destroys the window and terminates the mainloop ?

# Import the library
from tkinter import *

# Create an instance of window
win = Tk()

# Set the geometry of the window
win.geometry("700x350")

# Title of the window
win.title("Click the Button to Close the Window")

# Define a function to close the window
def close():
   win.destroy()

# Create a Button to call close()
Button(win, text="Close the Window", font=("Calibri",14,"bold"), command=close).pack(pady=20)

win.mainloop()

Method 2: Using quit()

The quit() method stops the mainloop but keeps the window object in memory ?

# Import the library
from tkinter import *

# Create an instance of window
win = Tk()

# Set the geometry of the window
win.geometry("700x350")

# Title of the window
win.title("Click the Button to Close the Window")

# Define a function to close the window
def close():
   win.quit()

# Create a Button to call close()
Button(win, text="Close the Window", font=("Calibri",14,"bold"), command=close).pack(pady=20)

win.mainloop()

Comparison

Conclusion

Use destroy() to completely close and clean up the application. Use quit() when you need to stop the mainloop but keep the window object for potential reuse.