Besides the ABC base class, and the @abstractmethod decorator, the abc module defines the @abstractclassmethod, @abstractstaticmethod, and @abstractproperty decorators. However, these last three were deprecated in Python 3.3, when it became possible to stack decorators on top of @abstractmethod, making the others redundant. For example, the preferred way to declare an abstract class method is: class MyABC(abc.ABC): @classmethod @abc.abstractmethod def an_abstract_classmethod(cls, ...): pass
