December 2015
Beginner to intermediate
350 pages
6h 49m
English
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Creating message boxes – information, warning, and error
A message box is a pop-up window that gives feedback to the user. It can be informational, hinting at potential problems, and even catastrophic errors.
Using Python to create message boxes is very easy.
Getting ready
We will add functionality to the Help | About menu item we created in the previous recipe. The typical feedback to the user when clicking the Help | About menu in most applications is informational. We start with this information and then vary the design pattern to show warnings and errors.
How to do it...
Add the following line of code to the top of the module where the import statements live:
from tkinter import messagebox as mBox
Next, we will create a callback function that will ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.