Book Image

Tkinter GUI Application Development Cookbook

By : Alejandro Rodas de Paz
Book Image

Tkinter GUI Application Development Cookbook

By: Alejandro Rodas de Paz

Overview of this book

As one of the more versatile programming languages, Python is well-known for its batteries-included philosophy, which includes a rich set of modules in its standard library; Tkinter is the library included for building desktop applications. Due to this, Tkinter is a common choice for rapid GUI development, and more complex applications can benefit from the full capabilities of this library. This book covers all of your Tkinter and Python GUI development problems and solutions. Tkinter GUI Application Development Cookbook starts with an overview of Tkinter classes and at the same time provides recipes for basic topics, such as layout patterns and event handling. Next, we cover how to develop common GUI patterns, such as entering and saving data, navigating through menus and dialogs, and performing long-running actions in the background.You can then make your apps leverage network resources effectively and perform graphical operations on a canvas and related tasks such as detecting collisions between items. Finally, this book covers using themed widgets, an extension of Tk widgets that have a more native look and feel. Finally, this book covers using the canvas and themed widgets. By the end of the book, you will have an in-depth knowledge of Tkinter classes, and will know how to use them to build efficient and rich GUI applications.
Table of Contents (10 chapters)

Creating an editable drop-down with Combobox

Drop-down lists are a succinct way of choosing a value by vertically displaying a list of values only when needed. This is also common to let users input another option that is not present in the list.

This functionality is combined in the ttk.Combobox class, which takes the native look and feel of your platform drop-downs.

Getting ready

Our next application will consist of a simple drop-down entry with a couple of buttons to confirm the selection or clear its contents.

If one of the predefined values is selected or the Submit button is clicked, the current Combobox value is printed in the standard output, as follows: