Book Image

Python GUI Programming with Tkinter, 2nd edition - Second Edition

By : Alan D. Moore
4.5 (2)
Book Image

Python GUI Programming with Tkinter, 2nd edition - Second Edition

4.5 (2)
By: Alan D. Moore

Overview of this book

Tkinter is widely used to build GUIs in Python due to its simplicity. In this book, you’ll discover Tkinter’s strengths and overcome its challenges as you learn to develop fully featured GUI applications. Python GUI Programming with Tkinter, Second Edition, will not only provide you with a working knowledge of the Tkinter GUI library, but also a valuable set of skills that will enable you to plan, implement, and maintain larger applications. You’ll build a full-blown data entry application from scratch, learning how to grow and improve your code in response to continually changing user and business needs. You’ll develop a practical understanding of tools and techniques used to manage this evolving codebase and go beyond the default Tkinter widget capabilities. You’ll implement version control and unit testing, separation of concerns through the MVC design pattern, and object-oriented programming to organize your code more cleanly. You’ll also gain experience with technologies often used in workplace applications, such as SQL databases, network services, and data visualization libraries. Finally, you’ll package your application for wider distribution and tackle the challenge of maintaining cross-platform compatibility.
Table of Contents (22 chapters)
19
Other Books You May Enjoy
20
Index
Appendices

Adding the record list to the application

Now that we have a model capable of reading and updating data, and a RecordList widget capable of displaying the contents of a file, we need to make changes to the rest of the application to enable everything to work together. Specifically, we'll have to do the following:

  • We'll need to update the DataRecordForm to be suitable for updating existing records as well as adding new ones.
  • We'll need to update the layout of the Application window to accommodate the new record list.
  • We'll need to create new Application callbacks to handle loading records and navigating the application.
  • Finally, we'll need to update the main menu with new options for the added functionality.

Let's get started!

Modifying the record form for read and update

As long as we're still in views.py, let's scroll up to look at our DataRecordForm class and adjust it to make it capable of loading...