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)

How to use StringVar()

There are built-in programming types in tkinter that differ slightly from the Python types we are used to programming with. StringVar() is one such tkinter type. This recipe will show you how to use the StringVar() type.

Getting ready

In this recipe, you will learn how to save data from the tkinter GUI into variables so we can use that data. We can set and get their values, which is very similar to how you would use the Java getter/setter methods.

Here are some of the types of code in tkinter:

strVar = StringVar() Holds a string; the default value is an empty string ("")
intVar = IntVar() Holds an integer; the default value is 0
dbVar = DoubleVar() Holds a float; the default value is...