[mod_python] importing egg format libs installed on a custom path

Ah, I'm now not sure what was happening before as this morning what I
described isn't working. So sorry for the muddle.

However after checking what was on sys.path from a modpython handler &
also from the shell with the correct PYTHONPATH. The difference was the
egg...

from modpython handler:
Path is ['/opt/apps/simple',
'/opt/python/python-2.5.1/lib/python25.zip',
'/opt/python/python-2.5.1/lib/python2.5',
'/opt/python/python-2.5.1/lib/python2.5/plat-linux2',
'/opt/python/python-2.5.1/lib/python2.5/lib-tk',
'/opt/python/python-2.5.1/lib/python2.5/lib-dynload',
'/opt/python/python-2.5.1/lib/python2.5/site-packages']

from python shell:
>>> import sys
>>> sys.path
['', '/opt/apps/simple/feedparser-4.1-py2.5.egg', '/opt/apps/simple',
'/opt/python/python-2.5.1/lib/python25.zip',
'/opt/python/python-2.5.1/lib/python2.5',
'/opt/python/python-2.5.1/lib/python2.5/plat-linux2',
'/opt/python/python-2.5.1/lib/python2.5/lib-tk',
'/opt/python/python-2.5.1/lib/python2.5/lib-dynload',
'/opt/python/python-2.5.1/lib/python2.5/site-packages']

So I added the egg path explicitly to the apache PythonPath directive
and now the modpython handler happily finds the module.

So my modpython config is now...

<Location "/simple">
    PythonPath "['/opt/apps/simple/feedparser-4.1-py2.5.egg',
'/opt/apps/simple'] + sys.path"
    SetHandler python-program
    PythonHandler handler
    PythonDebug On
    PythonInterpreter simple
</Location>

So I guess my question is now... do egg based modules need to be
unzipped & explicitly mentioned on the python path? If so this seems to
bypass all the pth stuff that egg versioning works off.

thanks,
Graham

On Fri, 2007-09-14 at 08:28 +1000, Graham Dumpleton wrote:
> Have you confirmed that in your application sys.path includes the
> directory you expect to be there?
> 
> What is the remainder of your Apache configuration for setting up
> mod_python handler? Ie., what context are you setting PythonHandler
> etc.
> 
> Grahamd
> 
> On 13/09/2007, Graham Carlyle <graham.carlyle at maplecroft.net> wrote:
> > Hi
> >
> > I'm trying to setup an application via mod_python and want to place some
> > required libraries, that are python eggs, on an application specific
> > path.
> >
> > So I use...
> >
> > <LocationMatch ...>
> >
> > ...
> > PythonPath "['/opt/apps/foo/lib/'] + sys.path"
> > PythonInterpreter foo
> > ...
> >
> > </LocationMatch>
> >
> > But the application doesn't pick up on the eggs that were installed in
> > "/opt/apps/foo/lib/". Although the python shell can import the libs
> > after setting PYTHONPATH to this path.
> >
> > However I can get the webapp to find the eggs if I add to the apache
> > conf...
> >
> > PythonImport /opt/apps/foo/lib/site.py foo
> >
> > site.py being a file the easy_install created when i installed the eggs
> > to the custom path.
> >
> > Is this the recommended way of installing eggs to a custom path? Are
> > there problems with this "solution".
> >
> > I had a trawl and couldn't find any info on this sort of problem in the
> > mailing list which surprised me.
> >
> > thanks,
> > Graham
> >
> >
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> >