[Python-Dev] Interest in integrating C decimal module into Python?
ssteinerX@gmail.com
ssteinerx at gmail.com
Tue Oct 20 15:27:33 CEST 2009
Shouldn't this be on python-ideas?
S
On Oct 20, 2009, at 9:15 AM, Stefan Krah wrote:
> Hi,
>
> as some of you know, recently I've released an arbitrary precision
> C library for decimal arithmetic together with a Python module:
>
> http://www.bytereef.org/libmpdec.html
> http://www.bytereef.org/fastdec.html
>
>
> Both the library and the module have been tested extensively. Fastdec
> currently differs from decimal.py in a couple of ways that could be
> fixed. The license is AGPL, but if there is interest in integrating it
> into Python I'd release it under a Python-compatible license.
>
>
> There have been several approaches towards getting C decimal
> arithmetic
> into Python:
>
> http://bugs.python.org/issue2486
>
>
> Fastdec follows Raymond Hettinger's suggestion to provide wrappers for
> an independent C implementation. Arguments in favour of fastdec are:
>
> * Complete implementation of Mike Cowlishaw's specification
>
> * C library can be tested independently
>
> * Redundant arithmetic module for tests against decimal.py
>
> * Faster than Java BigDecimal
>
> * Compares relatively well in speed against gmpy
>
>
> To be clear, I would not want to _replace_ decimal.py. Rather I'd
> like to
> see a cdecimal module alongside decimal.py.
>
>
> I know that ultimately there should be a PEP for module inclusions.
> The
> purpose of this post is to gauge interest. Specifically:
>
>
> 1. Are you generally in favour of a C decimal module in Python?
>
>
> 2. Would fastdec - after achieving full decimal.py compatibility - be
> a serious candidate?
>
>
> 3. Could I use this list to settle a couple of questions, or would
> perhaps
> a Python developer be willing to work with me to make it
> compatible? I'm
> asking this to avoid doing work that would not find acceptance
> afterwards.
>
>
>
> Thanks,
>
> Stefan Krah
>
>
>
> _______________________________________________
> Python-Dev mailing list
> Python-Dev at python.org
> http://mail.python.org/mailman/listinfo/python-dev
> Unsubscribe: http://mail.python.org/mailman/options/python-dev/ssteinerx%40gmail.com
More information about the Python-Dev
mailing list