Python abstract class attribute

Note the abstract base class may have more than one abstract methods . The child class must implement all of them failing which TypeError will be raised.

Abstract classes are classes that contain one or more abstract methods. An abstract method is a method that is declared, but contains no implementation . Abstract classes cannot be instantiated, and require subclasses to provide implementations for the abstract methods.1 Şub 2022

An abstract class can extend another abstract class . And any concrete subclasses must ensure that all abstract methods are implemented.

We can’t instantiate or create an object of an abstract class . A class derived from the abstract parent class must implement each method that is declared as abstract in the parent class.