REST APIs with Flask and Python - Custom Error Classes

The video tutorial covers the creation and use of custom error classes in Python. It begins with setting up a simple book class with properties and methods, including a read function. The tutorial then addresses the issue of reading more pages than available by implementing error handling in the read method. A custom error class, 'TooManyPagesReadError', is created to provide specific error messages. The video concludes with best practices for creating custom error classes, emphasizing the importance of inheritance and naming for clarity.

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