If my subclass is as this: from subclassing.abstract.BaseSomeAbstract import BaseSomeAbstract
class ChildSomeAbstract(BaseSomeAbstract): @property def abs_prop(self): return self._abs_prop I can create an instance of it with no errors. So x = ChildSomeAbstract() works with no problem. It looks like setter @abstractmethod decorator is not respected. -- https://mail.python.org/mailman/listinfo/python-list