Unified Type/class

[Jason Orendorff]

Pedro Rodriguez wrote:
> CORE language provides some features, if anyone (L1, L2) are allowed to
> alter those features, what should Appl. developper expect from the CORE.
> Even adding a method could be a problem. I consider that, when requiring
> to augment CORE features, it should be dealt as part of the library
> framework and not by altering the CORE directly.

Note that this is a general bit of engineering good sense.
It's not something Python itself generally tries to enforce.

You can replace __builtin__.str with a Kumquat instance if you
like.  The core is completely hackable.

## Jason Orendorff    http://www.jorendorff.com/