Composing widgets to display information

It is difficult to build large applications if all the code is contained in a single class. By splitting the GUI code into specific classes, we can modularize the structure of our program and create widgets with well-defined purposes.

Getting ready

Apart from importing the Tkinter package, we will import the Contact class from the preceding recipe:

import tkinter as tk
import tkinter.messagebox as mb

from chapter5_01 import Contact

Verify that the chapter5_01.py file is in the same directory; otherwise, this import-from statement will raise ImportError.

How to do it...

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