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Perhaps "\_\_getdescriptor\_\_" would work as the method name? Yes, it can technically return a non-descriptor, but the \*primary\* purpose is to customise the retrieval of objects that will be checked to see if they're descriptors. It \*won't\* be invoked when looking for ordinary attributes in an instance dict, but \*will\* be invoked when looking on the class object.

Cheers,
Nick.