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Abstract Factories In Python

Explore the Abstract Factory design pattern in Python, focusing on protocol-based interfaces and duck typing. Understand how to create modular game factories without abstract base classes and enhance consistency with typing.Protocol.

Conceptualizing Abstract Factory without a base class

The example in the previous lesson highlights an interesting consequence of the way Python’s duck typing works. Do we really need the abstract base class, CardGameFactory? It provides a framework used for type checking but otherwise doesn’t have any useful features. Since we don’t really need it, we can think of this design as having three parallel modules:

Abstract Factory without abstract base classes
Abstract Factory without abstract base classes

Both of the defined games implement a ...