Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Python GUI Programming Cookbook, Second Edition
  • Toc
  • feedback
Python GUI Programming Cookbook, Second Edition

Python GUI Programming Cookbook, Second Edition

By : Burkhard Meier
3.4 (5)
close
Python GUI Programming Cookbook, Second Edition

Python GUI Programming Cookbook, Second Edition

3.4 (5)
By: Burkhard Meier

Overview of this book

Python is a multi-domain, interpreted programming language. It is a widely used general-purpose, high-level programming language. It is often used as a scripting language because of its forgiving syntax and compatibility with a wide variety of different eco-systems. Python GUI Programming Cookbook follows a task-based approach to help you create beautiful and very effective GUIs with the least amount of code necessary. This book will guide you through the very basics of creating a fully functional GUI in Python with only a few lines of code. Each and every recipe adds more widgets to the GUIs we are creating. While the cookbook recipes all stand on their own, there is a common theme running through all of them. As our GUIs keep expanding, using more and more widgets, we start to talk to networks, databases, and graphical libraries that greatly enhance our GUI’s functionality. This book is what you need to expand your knowledge on the subject of GUIs, and make sure you’re not missing out in the long run.
Table of Contents (12 chapters)
close

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 as well as 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 chapter, in the Creating tabbed widgets recipe. 

The code is from GUI_tabbed_all_widgets_both_tabs.py. 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:

Next, create a callback function that will display a message box. We have to locate the code of the callback above the code where we attach the callback to the menu item, because this is still procedural and not OOP code.

Add the following code...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
bookmark search playlist download font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete