Python GUI Programming Cookbook, Second Edition - Second Edition

How to do it...

We will create a new Python module, and the following screenshot shows both the code and the resulting output:

GUI_StringVar.py

First, we import the tkinter module and alias it to the name tk.

Next, we use this alias to create an instance of the Tk class by appending parentheses to Tk, which calls the constructor of the class. This is the same mechanism as calling a function; only here, we create an instance of a class.

Usually, we use this instance assigned to the win variable to start the main event loop later in the code, but here, we are not displaying a GUI, rather, we are demonstrating how to use the tkinter StringVar ...