Update: Zope2 packaging

[Brian Sutherland]

Sounds like it's related to the __init__.py used for namespace packages.
I've experienced similar behaviour when it's not around.

https://bugs.launchpad.net/van.pydeb/+bug/619294

On Sun, Jul 03, 2011 at 12:01:57AM +0200, Jonas Meurer wrote:
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> Hey again,
> 
> Good news first: I finally was able to fix the issue where fetch.py
> installed the wrong dependencies into the zope2.12 tarball. Thanks to
> Michael for help with that.
> 
> Now the bad news: A new issue followed immediately. The symptoms are,
> that no zope.app.* modules are found when imported, except one:
> zope.app.appsetup.
> 
> I already digged into this issue, and found out that it has to do with
> some kind of namespace collision. All the zope.app.* eggs contain
> subfolders zope/app/.... It seems like the first one in PYTHONPATH
> occupies the namespace zope.app.
> 
> An example:
> 
> - - Create two folders with modules: 'module1/zope/app/mod1' and
> 'module2/zope/app/mod2'.
> - - Now add both paths 'module1' and 'module2' to the python PATH either
> by listing them in PYTHONPATH environment variable, or by using
> site.addsitedir().
> - - Now try to import both modules: 'import zope.app.mod1' and 'import
> zope.app.mod2'. The former works while the latter doesn't.
> 
> - - If you copy mod1 and mod2 both in the same subfolder
> 'module1/zope/app' instead, both can be imported.
> 
> I'm not sure where the error comes from, but this behaviour is broken.
> With python eggs, it's not an option to copy all zope.app.* modules into
> one single zope/app/ folder.
> 
> Maybe someone has an idea what's up here?
> 
> Greetings,
>  jonas
> 
> PS: I also tried Michaels old python wrapper (written in python): it has
> the same issues. Thus it's not related to the new python wrapper.
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> =SNM1
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-- 
Brian Sutherland