[Zope-dev] z3c.autoinclude doesn't include extra_requires

[Ethan Jucovy]

Hey Christian,

I finally had a bit of time to sort out my Zope.org SVN credentials
and try to look into this ... but I'm actually not getting very far.

What I'm stumped on: is there any way to find out which "extras" have
been installed with a package?


The details:
The bad line is src/z3c/autoinclude/dependency.py#L22:
>        for req in self.context.requires():

(Here self.context is a distribution object, that of the module that
wants to <includeDependencies>.  We're about to look for ZCML files in
the packages of its dependencies.)

The pkg_resources documentation
(http://peak.telecommunity.com/DevCenter/PkgResources#distribution-objects)
explains:
> requires(extras=())
>   List the Requirement objects that specify this distribution's dependencies. If extras is specified, it should be a sequence
>   of names of "extras" defined by the distribution, and the list returned will then include any dependencies needed to
>   support the named "extras".

So in other words, L22 should look like:
+        for req in
self.context.requires(extras=list_of_actively_installed_extras_for_the_distribution):

The problem is, I can't figure out how to figure out which extras are
actively installed.  (We don't want to pass in *all* of the
distribution's extras, because that might include *uninstalled* extras
-- which would mean we end up trying to include ZCML from packages
that we should not be, and that might not even be installed.)

Thanks,
Ethan

On Tue, Nov 11, 2008 at 2:58 AM, Christian Zagrodnick <cz at gocept.com> wrote:
>
> Hi,
>
> when I include an egg with extras (like gocept.foo[server]) the
> dependencies from the extra are not automatically included with
> autoinclude.
>
> I'm posting this here, because there is no other obvious place (no
> project for this on lauchpad).
>
> Regards,
> --
> Christian Zagrodnick · cz at gocept.com
> gocept gmbh & co. kg · forsterstraße 29 · 06112 halle (saale) · germany
> http://gocept.com · tel +49 345 1229889 4 · fax +49 345 1229889 1
> Zope and Plone consulting and development
>
>
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