What is Abstract Class In Python?
An abstract class in Python is a blueprint for other classes that cannot be instantiated on its own. It is defined using the `abc` module, which stands for Abstract Base Classes. An abstract class can contain abstract methods—methods that are declared but contain no implementation. Subclasses must implement these abstract methods to become concrete classes. This mechanism enforces a contract for subclasses, ensuring they provide specific functionalities. Abstract classes are useful for defining common interfaces and promoting code reusability while preventing direct instantiation of base classes that are not fully implemented.