Use module as global namespace object

[nas (Neil Schemenauer)]

@guido

I still think you haven’t explained what would be nicer. Your OP mostly describes the implementation and from that it’s hard to infer what becomes nicer (since some things become less nice because of backwards compatibility). Are you primarily referring to PEP 573 being cleaner to implement?

At this point writing a PEP would be the next step. I would need to be specific about advantages vs costs. Given we now have the inline globals cache, it is less compelling. I’m suspecting backwards compatibility issues kills the idea. A few things I think would be better: PEP 573, import.c/importlib simpler, possible path to faster global variable access (vs pre-inline cache), easier introspection (e.g. finding module given function).