Book Image

Python GUI Programming Cookbook. - Third Edition

By : Burkhard Meier
Book Image

Python GUI Programming Cookbook. - Third Edition

By: Burkhard Meier

Overview of this book

Python is a multi-domain, interpreted programming language that is easy to learn and implement. With its wide support for frameworks to develop GUIs, you can build interactive and beautiful GUI-based applications easily using Python. This third edition of Python GUI Programming Cookbook follows a task-based approach to help you create effective GUIs with the smallest amount of code. Every recipe in this book builds upon the last to create an entire, real-life GUI application. These recipes also help you solve problems that you might encounter while developing GUIs. This book mainly focuses on using Python’s built-in tkinter GUI framework. You'll learn how to create GUIs in Python using simple programming styles and object-oriented programming (OOP). As you add more widgets and expand your GUI, you will learn how to connect to networks, databases, and graphical libraries that greatly enhance the functionality of your GUI. You’ll also learn how to use threading to ensure that your GUI doesn't become unresponsive. Toward the end, you’ll learn about the versatile PyQt GUI framework, which comes along with its own visual editor that allows you to design GUIs using drag and drop features. By the end of the book, you’ll be an expert in designing Python GUIs and be able to develop a variety of GUI applications with ease.
Table of Contents (13 chapters)

Mixing fall-down and OOP coding

Python is an OOP language, yet it does not always make sense to use OOP. For simple scripting tasks, the legacy waterfall coding style is still appropriate.

In this recipe, we will create a new GUI that mixes both the fall-down coding style with the more modern OOP coding style.

We will create an OOP-style class that will display a tooltip when we hover the mouse over a widget in a Python GUI, which we will create using the waterfall style.

Fall-down and waterfall coding styles are the same. It means that we have to physically place code above code before we can call it from the code below. In this paradigm, the code literally falls down from the top of our program to the bottom of our program when we execute the code.

Getting ready