Book Image

Tkinter GUI Programming by Example

Book Image

Tkinter GUI Programming by Example

Overview of this book

Tkinter is a modular, cross-platform application development toolkit for Python. When developing GUI-rich applications, the most important choices are which programming language(s) and which GUI framework to use. Python and Tkinter prove to be a great combination. This book will get you familiar with Tkinter by having you create fun and interactive projects. These projects have varying degrees of complexity. We'll start with a simple project, where you'll learn the fundamentals of GUI programming and the basics of working with a Tkinter application. After getting the basics right, we'll move on to creating a project of slightly increased complexity, such as a highly customizable Python editor. In the next project, we'll crank up the complexity level to create an instant messaging app. Toward the end, we'll discuss various ways of packaging our applications so that they can be shared and installed on other machines without the user having to learn how to install and run Python programs.
Table of Contents (18 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Index

The ttk submodule


The ttk submodule contains themed widgets that match those native to the system they are being run on. You may have noticed that the Button widgets used by our blackjack game looked a little out of place compared to buttons on a native application for your operating system. This is because Tkinter's regular widgets have a consistent look across all platforms and were likely designed before the operating system you are using was created.

To demonstrate what a difference ttk themed widgets make, open up a Python file and add the following code:

import tkinter as tk
import tkinter.ttk as ttk

win = tk.Tk()

button_tk = tk.Button(win, text="tk")
button_ttk = ttk.Button(win, text="ttk")

button_tk.pack(padx=10, pady=10)
button_ttk.pack(padx=10, pady=10)

win.mainloop()

Run this code and carefully study each button. The ttk button should appear below the tk button, and should look similar to the buttons you are used to seeing on desktop applications for your operating system:

Given...