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)

Data and Classes

In this chapter, we will save our GUI data into tkinter variables. We will also start using object-oriented programming (OOP), writing our own classes in Python. This will lead us to creating reusable OOP components. By the end of this chapter, you will know how to save data from the GUI into local tkinter variables. You will also learn how to display tooltips over widgets, which give the user additional information. Knowing how to do this makes our GUI more functional and easier to use.

Here is an overview of the Python modules for this chapter:

In this chapter, we will use data and OOP classes using Python 3.7 and above. We will cover the following recipes:

  • How to use StringVar()
  • How to get data from a widget
  • Using module-level global variables
  • How coding in classes can improve the GUI
  • Writing callback functions
  • Creating reusable GUI components