bzr-lp-branches

[Marius Gedminas]

On Wed, Dec 09, 2009 at 11:51:37PM +0000, James Westby wrote:
> On Wed Dec 09 22:10:11 +0000 2009 John Arbash Meinel wrote:
> > So is that the equivalent of "recommends" versus "requires" ? Is there
> > any way to codify that in setuptools?
> 
> It's more like "test_requires" I think, which might actually exist.

Some packages use setuptools extras to declare test requirements:

  setup(
      name='mypkg',
      ...
      install_requires=['foo', 'bar'],
      extras_require={'test': ['baz']},
      ...
  )

To get those installed, you need to easy_install mypkg[test] or some
equivalent (e.g. eggs = mypkg[test] in buildout.cfg).

There were huge threads on zope-dev@ whether test extras were a good
idea or a bad idea; the outcome wasn't clear to me.

The recently announced z3c.dependencychecker promotes the use of test
extras (by scanning your tests/*.py files and suggesting that packages
imported only there be declared in test extras, and not in
install_requires).

Marius Gedminas
-- 
CBQ is merely the oldest kid on the block - yet it is by far the least useful
qdisc and also the most complex one. I advise *against* using it. This may come
as something of a shock to many who fell for the 'sendmail effect', which
learns us that any complex technology which doesn't come with documentation
must be the best available.
		-- Linux Advanced Routing HOWTO
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