[Python-Dev] C API doc fix

["Martin v. Löwis"]

Jim Jewett wrote:
> 
> ========
> Py_UNICODE
>      Python uses this type to store Unicode ordinals.  It is
> typically a typedef alias, but the underlying type -- and
> the size of that type -- varies across different systems.
> ========

I think I objected to such a formulation, requesting that the
precise procedure is documented for chosing the alias. I then
went on saying what the precise procedure is, and then an
argument about that procedure arose.

I still believe that the precise procedure should be documented
(in addition to saying that its outcome may vary across
installations).

Regards,
Martin