[Python-Dev] Rounding Decimals

[Guido van Rossum]

On Jan 12, 2008 5:09 PM, Jeffrey Yasskin <jyasskin at gmail.com> wrote:
> During the discussion about the new Rational implementation
> (http://bugs.python.org/issue1682), Guido and Raymond decided that
> Decimal should not implement the new Real ABC from PEP 3141. So I've
> closed http://bugs.python.org/issue1623 and won't be pursuing any of
> the extra rounding methods mentioned on this thread.

Well, I didn't really decide anything. I suggested that if the
developers of Decimal preferred it, it might be better if Decimal did
not implement the Real ABC, and Raymond said he indeed preferred it.

Since this reduces the usefulness of numeric.Real, I'm somewhat
disappointed in this outcome (as I imagine you are). However, Decimal
has very little of my own sweat in it, and a lot of Raymond, Facundo
(and others, including Mark), and the ABC thing is still somewhat
experimental, so it wouldn't make sense for me to impose my ideas onto
Decimal unilaterally, and I'm sure Raymond etc. have their reasons.

-- 
--Guido van Rossum (home page: http://www.python.org/~guido/)