The objective of a ABC metaclass is to assist you detect gaps in the implementation; it under no circumstances was intended to implement the types with the characteristics. How can I Blend abc.abstractproperty having a classmethod to generate an "abstract course property"? three issue; Probably in a specific implementation a https://centralparksector104.co.in/central-park-104-sector-104-gurgaon-a-new-benchmark-in-luxury-living-on-dwarka-expressway/