Book Image

Tkinter GUI Application Development Blueprints

By : Bhaskar Chaudhary
Book Image

Tkinter GUI Application Development Blueprints

By: Bhaskar Chaudhary

Overview of this book

Tkinter is the built-in GUI package that comes with standard Python distributions. It is a cross-platform package, which means you build once and deploy everywhere. It is simple to use and intuitive in nature, making it suitable for programmers and non-programmers alike. This book will help you master the art of GUI programming. It delivers the bigger picture of GUI programming by building real-world, productive, and fun applications such as a text editor, drum machine, game of chess, media player, drawing application, chat application, screen saver, port scanner, and many more. In every project, you will build on the skills acquired in the previous project and gain more expertise. You will learn to write multithreaded programs, network programs, database driven programs and more. You will also get to know the modern best practices involved in writing GUI apps. With its rich source of sample code, you can build upon the knowledge gained with this book and use it in your own projects in the discipline of your choice.
Table of Contents (15 chapters)
Tkinter GUI Application Development Blueprints
About the Author
About the Reviewers

Adding and removing items from a playlist

Let's write some code for a feature that allows us to add and remove items from a playlist. To be more specific, we will write the code for a function for the four buttons marked in the following screenshot:

The four buttons, from left to right, perform the following functions:

  • The first button from the left adds individual audio files to a playlist

  • The second button deletes all the selected items from the playlist

  • The third button scans a directory for audio files and adds all the found audio files to the playlist

  • The last button empties the playlist

Since adding these features requires us to interact with the Listbox widget of Tkinter, let's spend some time getting to know the Listbox widget:

  • Create a Listbox widget like we'd create any other widget, as follows:

    play_list = tk.ListBox(parent, **configurable options)
  • When you initially create a Listbox widget, it is empty. To insert one or more lines of text into the Listbox, use the insert() method, which...