On Sat, 24 Oct 2020 at 21:49, André Roberge <andre.roberge@gmail.com> wrote:

No, it does not. It proposes actual changes to the Python interpreter.

Under my proposal, something like what is proposed there would first be implemented as a third party package.

Not sure, but yes, the PEP proposes a change to the interpreter, but in such a way that you can define your own macro, ie custom keyword(s) in a third party package that can be import!ed.