Re: [PATCH] gnu: Add Python 3.

[Andreas Enge <andreas@enge.fr>]

Am Mittwoch, 28. August 2013 schrieb Ludovic Courtès:
> > +(define-public python3
> 
> Nice that it works without any modifications.  Please push.  (I think
> Andreas wanted to discuss the naming convention for Python packages, but
> I think adding Python 3 doesn’t cause any problems.)

Only a little ;-)

I would rename
   (define-public python
to
   (define-public python-2

and add
   (define-public python
for python version 3 (compare libjpeg for version 9 and libjpeg-8).

Then all packages relying on python will be recompiled with the newest 
version. If this poses problems, we could modify the input to python-2.

Rationale: We would like to package the newest versions and give their 
variables the default names. If for compatibility problems, we need an 
older version, the corresponding variable should get a suffix. (While the 
NAME field of a package should be the default name in all cases.)

Andreas