Can you elaborate on the utility of this feature? What realistic use cases do you see for it? I think that at this point it's important to weigh all benefits of features vs. implementation complexity, and there's absolutely no need to support every feature every other enum implementation has. I want to stress again that the most important characteristic of your implementation is the clean syntax which means that enums are so easy to define they don't really need special Python syntax and a library feature can do. However, there's a big leap from this to defining custom metaclasses for enums.