ABC Module
The ABC Module is a Python library that provides the 'abc' module for defining abstract base classes (ABCs). It allows developers to create abstract classes and methods that must be implemented by subclasses, enforcing a contract for derived classes. This is part of Python's standard library and is essential for implementing object-oriented design patterns like interfaces and abstract factories.
Developers should learn the ABC Module when building large-scale Python applications that require strict class hierarchies and interface definitions, such as in frameworks, plugins, or APIs where consistency across implementations is critical. It is particularly useful in scenarios like designing extensible systems, ensuring method implementations in subclasses, and adhering to design principles like the Liskov Substitution Principle.