[Distutils] Requires-Dist: unittest2; 'test' in extras
pje at telecommunity.com
Thu May 31 18:04:32 CEST 2012
On Thu, May 31, 2012 at 11:24 AM, Erik Bray <erik.m.bray at gmail.com> wrote:
> On Wed, May 30, 2012 at 5:35 PM, PJ Eby <pje at telecommunity.com> wrote:
> > On Wed, May 30, 2012 at 3:09 PM, Daniel Holth <dholth at gmail.com> wrote:
> >> It looks like you can only install one extra at a time,
> > Actually, you can specify more than one, using commas. e.g.
> > foo[testing,c-extensions,celery-support,...]".
> Would we want this to look the same way for pysetup? Something like
> `pysetup install foo[tests,docs]`? That would be a pretty nice way to
> handle docs, tests, and other miscellaneous extra requirements. I
> like the idea of using environment markers for that and not having to
> add any new metadata fields.
> Using an environment marker might also work for some kind of
> build-requires, though support for that would still require some
> special machinery.
Since I haven't used pysetup yet, I couldn't really say. I can say that
some people have mentioned that they find setuptools' "extras" mechanism to
be confusing, unnecessary, or a tool in search of a usecase. I'm not
terribly attached to them, but I prefer them to the solution that e.g.
Celery uses. Celery has various dummy distributions on PyPI like
"celery-with-couchdb" that exist only to pull in extras, and it only needs
them because some packaging tools don't support extras. (ISTR that pip
doesn't support them.)
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