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Tue Oct 20 15:27:33 CEST 2009 · https://mail.python.org/pipermail/python-dev/2009-October/093097.html

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
>
>
>
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Showing content from https://mail.python.org/pipermail/python-dev/2009-October/093097.html below:

[Python-Dev] Interest in integrating C decimal module into Python?