One aspect that makes Python particularly powerful is that it supports the programming techniques used in Object-Orientated Design (OOD). This is commonly used by modern programming languages to help translate the tasks we want our program to perform into meaningful constructs and structures in code. The principle of OOD lies in the fact that we think of most problems as consisting of several objects (a GUI window, a button, and so on) that interact with each other to produce a desired result.
In the previous section, we found that we could use classes to create unique objects that could be reused multiple times. We created an appButton class, which generated an object with all the features of the class, including its own ...
