Bug#536419: zope3: broken install

[Brian Sutherland]

While this is indeed a zope3 bug, in the long term gaphor would need to
depend directly on the python-zope.* pacakges it requires.

These have just recently entered unstable:

    http://packages.debian.org/search?keywords=python-zope

On Tue, Jul 14, 2009 at 11:59:08AM +0200, Michael Schutte wrote:
> severity 536419 serious
> thanks
> 
> On Thu, Jul 09, 2009 at 09:28:44PM +0300, Andrew O. Shadoura wrote:
> > Hello.
> > 
> > Just have tried to install gaphor which uses zope3, and install was completely 
> > broken:
> > 
> > [???]
> > Setting up python-mechanize (0.1.7b-3) ...
> > pycentral: pycentral pkginstall: not overwriting local files:
> >   /usr/lib/python2.5/site-packages/mechanize/__init__.py
> >   /usr/lib/python2.5/site-packages/mechanize/_auth.py
> >   /usr/lib/python2.5/site-packages/mechanize/_clientcookie.py
> >   /usr/lib/python2.5/site-packages/mechanize/_gzip.py
> >   /usr/lib/python2.5/site-packages/mechanize/_headersutil.py
> >   /usr/lib/python2.5/site-packages/mechanize/_html.py
> >   /usr/lib/python2.5/site-packages/mechanize/_lwpcookiejar.py
> >   /usr/lib/python2.5/site-packages/mechanize/_mechanize.py
> >   /usr/lib/python2.5/site-packages/mechanize/_mozillacookiejar.py
> >   /usr/lib/python2.5/site-packages/mechanize/_msiecookiejar.py
> >   /usr/lib/python2.5/site-packages/mechanize/_opener.py
> >   /usr/lib/python2.5/site-packages/mechanize/_pullparser.py
> >   /usr/lib/python2.5/site-packages/mechanize/_request.py
> >   /usr/lib/python2.5/site-packages/mechanize/_urllib2.py
> >   /usr/lib/python2.5/site-packages/mechanize/_useragent.py
> >   /usr/lib/python2.5/site-packages/mechanize/_util.py
> > [???]
> 
> zope3 ships private copies of a lot of Python packages, which is bad
> enough on its own, but it additionally installs them system-wide in
> /usr/lib/python2.5/site-packages.  This is a huge problem because it not
> only replaces symlinks placed there by python-central (potentially newer
> library versions!), but also breaks later installations of affected
> python-* packages, like python-tz or python-mechanize.  For these
> reasons I consider this bug release-critical.
> 
> The best solution would be to create a zope3 (or, even better,
> python-zope) package which only ships the ???zope??? module hierarchy and
> depends on all the other stuff it needs; of course, some of the included
> modules have yet to be packaged.  If this is impossible because, say,
> zope absolutely requires the modules as included, a private Python
> module directory in /usr/share/zope might be an alternative.
> 
> Cheers,
> -- 
> Michael Schutte <michi at uiae.at>



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-- 
Brian Sutherland