[Distutils] Other ideas from today's packaging meetup at EuroPython

[Richard Jones]

Linux wheels are generally not compatible in a non-local sense, so it's
unlikely those will be distributable through PyPI. That would also mean
it's probably unlikely they'll be built there.

Something related to this also cane up in discussion at europython but I
don't want to steal any thunder :-)

Sent from my mobile - please excuse any brevity.
On 25 Jul 2014 19:53, "John M. Anderson" <sontek at gmail.com> wrote:

> On Fri, 2014-07-25 at 11:10 -0400, Barry Warsaw wrote:
> > On Jul 25, 2014, at 08:46 AM, Donald Stufft wrote:
> >
> > >Yea, I’m not sure whether I like it or not. Probably once we get a for
> real
> > >build farm for PyPI setup that will be a pretty reasonable sized carrot
> for
> > >people to upload sources.
> >
> > That's really the right long-term approach, IMO.  I'd like to some day
> see
> > source-only uploads, with wheel builds for various supported platforms
> > appearing "automatically" via the build farm.
> >
> > But ultimately you're right.  If we don't have source available from
> > *somewhere* (with PyPI being the most obvious and easiest location for
> > downstreams), then oh well, you won't get your package into some Linux
> > distros, and your users will have to roll their own.
> >
>
> I apologize, I have very limited knowledge of the plans for wheels, so
> this may have been discussed previously:
>
> Would a build server help?  We use wheels internally for our all our
> deployments for things like gevent, PIL, numpy, pandas, etc.  but we
> have to maintain separate internal indexes and have the developers and
> operators choose the Ubuntu 14.04, 12.04, 10.04 etc index depending on
> which stack they are developing.  We've solved this in our ansible
> scripts by detecting the OS it is running on and then generating a
> pip.conf that goes to the correct index.
>
> Is this the expected behavior?  Would the build server just generate
> distro specific indexes and then users would define this in their pip
> conf to get the correctly built wheels?
>
> I think if that is the case the build server wouldn't be helpful because
> you couldn't just `pip install gevent` to get a wheel, you would also
> have to go discover which operating systems the build server supports
> and find the index URL to point to.
>
> Currently when a wheel is generated it looks like this:
>
> Cython-0.20.1-cp27-none-linux_x86_64.whl
>
> but since it says "Linux" without distro knowledge there is no way for
> pip to know that it was built on Ubuntu 14.04 and wont work on my Fedora
> 17 box.
>
>
> Thanks,
> John
>
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