PEP 3107 and stronger typing (note: probably a newbie question)

[Paul Rubin]

John Nagle <nagle at animats.com> writes:
>     What we need are better implementations than CPython, not
> hokey attribute schemes bolted onto the language.  We're seeing
> stuff go in that's easy to add to CPython, but not necessarily
> good for the language as a whole.

I think it was a real loss that Python 3.0 proposals were closed
before PyPy was widely deployed and we had a chance to get more
experience with it.