I agree with what Batuhan said. Adding on, I'm very concerned about the potential maintenance burden for Python implementations.
Just for typing in CPython, some combination of the following knowledge is required to contribute code: 1. Metaclasses 2. Descriptors and CPython dunders 3. C internals due to PEP 585 and 604 4. If we throw in annotations internals, maybe we need some parser knowledge too, but this is usually not required. With the new callable syntax, that likely needs strong parser and compiler knowledge. I'm not claiming everyone needs to know all of the above to contribute (to the contrary, not knowing most of these is fine), but IMO the list is getting very long. I'd be sad if one day new typing contributors feel too overwhelmed by typing's implementation complexity (I admit sometimes feeling overwhelmed too). That said, thank you PEP authors for working to make Python's typing syntax more elegant. I hope my concerns didn't come across as overly harsh. - KJ _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/YZG53T2D3UO6WZCR5U3N45GVAK3E7JPN/ Code of Conduct: http://python.org/psf/codeofconduct/
