> Namespace performances are really critical for overall Python performances.

Yeah, that's why I'd like for myself and other people to make it easy to explore the behavior of namespace lookups, to see how to optimize them.


> You're free to fork Python and modify the C code to implement your use case, to study Python internals.

Thanks, already done. I'm now looking for a way to share those studies with other people, who won't patch and compile CPython. So, no worries, I've already lost, I need that fix yesterday, in actual versions of CPython deployed around the world. The rest if just idea that bugs which aren't fixed, persist; and the very interesting case of decision making by CPython core developers.