From mboxrd@z Thu Jan  1 00:00:00 1970
From: Leo Famulari <leo@famulari.name>
Subject: Re: [PATCH v2 03/10] gnu: Add python-pytest-pep8.
Date: Mon, 25 Apr 2016 14:19:03 -0400
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To: Ben Woodcroft <donttrustben@gmail.com>
Cc: Guix-devel@gnu.org

On Mon, Apr 25, 2016 at 10:36:54PM +1000, Ben Woodcroft wrote:
> On 25/04/16 18:43, Ricardo Wurmus wrote:
> >Ben Woodcroft <donttrustben@gmail.com> writes:
> >
> >>>>+    (propagated-inputs
> >>>>+     `(("python-pytest-cache", python-pytest-cache)
> >>>>+       ("python-pytest" ,python-pytest)
> >>>>+       ("python-pep8" ,python-pep8)))
> >>>Are you sure all of these need to be propagated?
> >>That's what the install_requires in setup.py is telling me.
> >Doesn’t this mean that these packages are only needed at build time?
> >Could they not be made native-inputs then?
> |
> I don't believe so.
> 
> http://pythonhosted.org/setuptools/setuptools.html#new-and-changed-setup-keywords
> 
> >install_requires|
> >   A string or list of strings specifying what other  distributions need to be installed when this one is.

This seems like an unusual case, since the package in question appears
to be a build-time tool. So, it would make sense to have things like
python-pytest available during python-pytest-pep8's run-time.

If we have a use case for python-pytest-pep8, it could be worthwhile to
see if it will work without propagating these anyways; I've noticed some
Python packages have a way to link to non-propagated-inputs.