Python eggs are not imported for Apache2 mod_wsgi

Question

I'm setting up Apache2 and mod_wsgi for Django in Debian, but I found problems. First, these are my directories:

/webapps/lib/python2.6/site-packages # python eggs
/webapps/lib/python2.6/ # python libraries
/webapps/myproject.wsgi # wsgi script
/webapps/myproject/ # django project

And this is the directory /webapps/lib/python2.6 (permissions are 777):

.
├── django
│   ├── bin
│   ├── conf
│   ├── ...
│   └── views
└── site-packages
    ├── easy-install.pth
    ├── mongoengine-0.5.3-py2.6.egg
    ├── pymongo-2.1-py2.6-linux-x86_64.egg
    └── site.py

In httpd.conf I have this:

WSGIScriptAlias / /webapps/myproject.wsgi
WSGIPythonEggs /webapps/lib/python2.6/site-packages/

And finally in myproject.wsgi:

import sys
sys.path.insert(0, '/webapps/lib/python2.6/site-packages')
sys.path.insert(0, '/webapps/lib/python2.6')
sys.path.insert(0, '/webapps/myproject')

.. Nothing important

# I tried 2 lines above as well, but nothing
#import os
#os.environ["PYTHON_EGG_CACHE"] = "/webapps/lib/python2.6/site-packages"

from django.core.handlers.wsgi import WSGIHandler
application = WSGIHandler()

# This for trying if system reads eggs
try:
    import mongoengine
except Exception as e:
    raise ImportError(str(e) + ". " + str(sys.path))

When I restart Apache and try to visit any webpage, I get error 500 and this in the log:

[Wed Jan 04 18:18:12 2012] [error] [client 217.217.164.22] ImportError: No module named mongoengine. ['/webapps/myproject', '/webapps/lib/python2.6', '/webapps/lib/python2.6/site-packages', '/usr/lib/python2.6', '/usr/lib/python2.6/plat-linux2', '/usr/lib/python2.6/lib-tk', '/usr/lib/python2.6/lib-old', '/usr/lib/python2.6/lib-dynload', '/usr/local/lib/python2.6/dist-packages', '/usr/lib/python2.6/dist-packages', '/usr/lib/pymodules/python2.6']

So as you can see django is imported well, but none of the eggs are imported. However I didn't find any other way to import them. Why eggs are not imported?

Thanks.

Answer 1

I just found the solution. Everything was perfect, and even though I was restarting Apache it was throwing all the time the same error. As there are many processes of Apache running, the key was doing a killall httpd and then starting the service again. Some kind of cache or process was alive with wrong data so it wasn't working properly.