>
> I think that the suggestion to explicitly refer to '...' instead of the
name Ellipsis would be preferable.

Aside: I had not realized that this was done at a different stage for
__debug__ and Ellipsis ("Ignorance is bliss"...) and do realize that this
is a rare corner case that a beginner would almost never encountered.
(I'm just trying my best to prevent any kind of confusion in my own
program, and probably overestimate the potential for confusion here for
cPython users).