We have reached the final chapter of this book. Let's end our discussion on Tkinter by looking at some concepts that, though very common in many graphical user interface (GUI) programs, did not appear in the previous chapters.
We will cover the following in this chapter:
- Tracing Tkinter variables and attaching callbacks that are triggered when the value of a variable changes
- Understanding the default keyboard widget traversal rules to provide a consistent user experience
- Validating user inputs using built-in Tkinter mechanisms
- Formatting a widget's content as the user interacts with the widget
- Understanding how Tkinter handles fonts and the best practices involved in using custom fonts in Tkinter
- Redirecting the command-line ...