Summary

This chapter served as an introduction to the basics of exception handling in Python. We saw how the exceptions occur, learned about some common built-in exception classes, and wrote simple code to handle these exceptions using the try…except clause. By handling exceptions, we fixed some obvious bugs in the Attack of the Orcs game.

The chapter also demonstrated techniques, such as raising and re-raising exceptions, using the finally clause, and so on. The later part of the chapter focused on implementing custom exception classes. We defined a new exception class and used it for raising custom exceptions for our application.

With exception handling, the code is in a better shape. However, we still have the majority of the code squished inside a single file (attackoftheorcs_v1_1.py). In the next chapter, you will learn how to package the application code and release it to a broader audience.