Before you proceed to the next chapter, make sure you can answer these questions to your
satisfaction:

• What are the central tenets of the model-view-controller framework?
• What is modularity in programming? Why is modularity good?
• What are the advantages and disadvantages of using class inheritance in programs? 
• While inheritance provided us with a tool to reuse our code, multiple inheritance is frowned upon by many experts.  What could be the reason for this?
• What are tags used for in the Tkinter Canvas widget?
• Why do we use a configparser module? What are some of the alternatives to using a configparser module?