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Python GUI Programming with Tkinter

You're reading from   Python GUI Programming with Tkinter Develop responsive and powerful GUI applications with Tkinter

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Product type Paperback
Published in May 2018
Publisher Packt
ISBN-13 9781788835886
Length 452 pages
Edition 1st Edition
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Author (1):
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Alan D. Moore Alan D. Moore
Author Profile Icon Alan D. Moore
Alan D. Moore
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Table of Contents (17) Chapters Close

Preface 1. Introduction to Tkinter FREE CHAPTER 2. Designing GUI Applications with Tkinter 3. Creating Basic Forms with Tkinter and ttk Widgets 4. Reducing User Error with Validation and Automation 5. Planning for the Expansion of Our Application 6. Creating Menus with Menu and Tkinter Dialogs 7. Navigating Records with Treeview 8. Improving the Look with Styles and Themes 9. Maintaining Cross-Platform Compatibility 10. Creating Automated Tests with unittest 11. Improving Data Storage with SQL 12. Connecting to the Cloud 13. Asynchronous Programming with Thread and Queue 14. Visualizing Data Using the Canvas Widget 15. Packaging with setuptools and cx_Freeze 16. Other Books You May Enjoy

Reducing User Error with Validation and Automation

Our form works, and both the director and data entry personnel are thrilled with the form design, but we're not ready for production yet! Our form doesn't yet perform the promised task of preventing or discouraging user errors. Number boxes still allow letters, combo boxes aren't limited to the choices given, and dates have to be filled in by hand. In this chapter, we're going to cover the following topics:

  • Deciding on the best approach for validating user input
  • Learning how to use Tkinter's validation system
  • Creating custom widgets for our form that validate entered data
  • Automating default values where appropriate in our form

Let's get started!

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