Alex Martelli <[EMAIL PROTECTED]> wrote:
> As things stand now (gmpy 1.01), an instance d of decimal.Decimal cannot
> transparently become an instance of any of gmpy.{mpz, mpq, mpf}, nor
> vice versa (the conversions are all possible, but a bit laborious, e.g.
> by explicitly going through string-forms).
>
> I'm thinking about possible ways to fix this, in whole or in part, but,
> before I spend more time on this, I was wondering if there's anybody
> else who'd be interested
I can't ever imaging mixing the two. I use GMPY when I want fast
inifinite precision artithmetic. I'd use decimal if I wanted to do
decimal arithmetic on currency or something like that (or perhaps if I
hadn't discovered GMPY in which case I wouldn't be mixing with GMPY!)
> if so, maybe we can discuss which conversions should happen
> implicitly
None I'd say! Perhaps make a less laborious manual conversion
function, but I don't think implicit conversion is that useful since
decimal and gmpy are solving quite different problems.
Implicit conversions also opens the can of worms - what is the
preferred promotion type? decimal + mpf == decimal? mpf? mpq?
IMHO of course!
--
Nick Craig-Wood <[EMAIL PROTECTED]> -- http://www.craig-wood.com/nick
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