The Tkinter GUI and its component elements are available for immediate use in Python by importing the "Tkinter" module. One of these components is the "listbox" widget.

But how about building one yourself? Let's learn Python basics by creating a simple expense tracker that you can actually use.

This intro course provides an overview of Python 3 and the basics of programming. As you learn more, you can see how to do GUI programming using Tkinter.