Martin Aspeli wrote:
Philipp von Weitershausen wrote:
For their upcoming versions, Zope 2 consuming platforms such as Plone
are creating standard Zope3-style Python packages while still having
Zope 2 products around.  This proposal aims at unifying the deployment
of products and Python packages into a Zope 2 instance alike by using
Python eggs and their entry point system.

See http://wiki.zope.org/zope2/EggifyingZopesExtensionMechanismQuotProductsQuot for the full proposal. Comments are appreciated. I plan on implementing it at the Camp5 BBQ sprint (http://www.openplans.org/projects/bbq-sprint)


So, to be clear:

 - You would have lib/python/Products/CMFCore as an alternative to
Products/CMFCore

Sorta. Just placing a package into lib/python doesn't register the entry point. Products.CMFCore would have to be installed as an egg, e.g. using a global easy_install, workingenv in an instance or zc.buildout. In the latter case, the packages don't end up in 'lib/python' of the instance but in 'eggs' of the buildout. An example with workingenv would look like this:

  $ mkzopeinstance inst
  $ python workingenv.py --home inst
  $ cd inst
  $ . bin/activate
  (inst)$ easy_install Products.CMFCore
  ...

 - Products in lib/python would be picked up by entry point rather than
scanning Products/

Yes.

 - The entry points would work with non-products as well, e.g. if
lib/python/plone/foobar had the entry point, it could be a project

If by project you mean product, then yes.

 - This would supersede the five:registerProduct directive we have now

Yes. Well, not supersede, but be an alternative.

If so, this sounds great, so +1 :)

Great.

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