[Distutils] setuptools special case Pyrex and break Cython

Stefan Behnel stefan_ml at behnel.de
Mon Sep 3 18:21:49 CEST 2007

Phillip J. Eby wrote:
> At 06:01 PM 9/3/2007 +0200, Stefan Behnel wrote:
>> So you are suggesting that people should choose: it's either eggs or
>> Cython.
> No -- I'm suggesting that developers whose projects include C code
> generated from .pyx files should always include the resulting .c files
> in their source distributions as a courtesy to their users.
> Not only is this the friendly thing for your users, it's also the only
> sane thing to do from a support standpoint.  Otherwise, you have to
> ensure that your users have exactly the same version of Pyrex (or
> Cython, or pypy, or whatever) that you do.
> Please notice that these points are entirely independent of whether
> setuptools or eggs exist.  I was shipping generated Pyrex-generated .c
> files to my users for these reasons well before setuptools existed, let
> alone eggs.

So do I. lxml has been doing that long before we even started using
setuptools. The point is that current setuptools break developer builds. You
can't change the sources without having (a fake) Pyrex installed, because
setuptools will not let you run Cython.


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