[Zope-dev] Re: Zope2 and eggs

[Daniel Nouri]

Wichert Akkerman wrote:
> Previously Daniel Nouri wrote:
>> Wichert Akkerman wrote:
>>> I wanted to share a bit of experience I just had with use of eggs in Zope2.
>>> For a project I am working on I want to use the zope.sendmail package in
>>> a Zope2 environment managed using buildout. I added zope.sendmail to the
>>> eggs list in the buildout configuration and ran buildout. This pulled in
>>> a large part of the Zope3 packages. This produced conflicts between those
>>> packages and the ones included in Zope2 which resulted in a pretty boken
>>> instance:
>> easy_install has a --no-deps option.  Maybe that's supported in buildout?
> 
> That's a bit of a workaround though.

It's a hack, yes.

> Ideally Zope2 should be an egg which somehow tells buildout/setuptools
> that it also provides the various zope.* packages it includes at the
> moment. Similar to the providers-mechanism which packaging systems like
> dpkg and rpm implement perhaps. Provides and (semi-) virtual packages
> are going to be essential to deal with swappable components as well.

I didn't realize you were working *with* the Zope 2 egg that Philipp 
created.  I don't have any experience with that, still what you're proposing 
makes much sense to me.


Daniel