Book Image

Python GUI programming with Tkinter

By : Alan D. Moore
Book Image

Python GUI programming with Tkinter

By: Alan D. Moore

Overview of this book

Tkinter is a lightweight, portable, and easy-to-use graphical toolkit available in the Python Standard Library, widely used to build Python GUIs due to its simplicity and availability. This book teaches you to design and build graphical user interfaces that are functional, appealing, and user-friendly using the powerful combination of Python and Tkinter. After being introduced to Tkinter, you will be guided step-by-step through the application development process. Over the course of the book, your application will evolve from a simple data-entry form to a complex data management and visualization tool while maintaining a clean and robust design. In addition to building the GUI, you'll learn how to connect to external databases and network resources, test your code to avoid errors, and maximize performance using asynchronous programming. You'll make the most of Tkinter's cross-platform availability by learning how to maintain compatibility, mimic platform-native look and feel, and build executables for deployment across popular computing platforms. By the end of this book, you will have the skills and confidence to design and build powerful high-end GUI applications to solve real-world problems.
Table of Contents (23 chapters)
Title Page
Copyright and Credits
Packt Upsell

Making our settings work

While the file saving works, the settings do not. The settings menu items should work as expected, remaining checked or unchecked, but they don't yet change the behavior of the data entry form. Let's make this work.

Recall that both autofill features are implemented in the DataRecordForm class's reset() method. To use our new settings, we need to give our form access to the settings dictionary by performing the following steps:

  1. Open and update the DataRecordForm.__init__() method as follows:
    def __init__(self, parent, fields, settings, *args, **kwargs):
        super().__init__(parent, *args, **kwargs)
self.settings = settings
  1. We've added an additional positional argument, settings, and then set that to self.settings so that all of the methods in the class can access it. Now, look at the reset() method; currently, the date autofill code is as follows:
        current_date ='%Y-%m-%d')