We use Apache+mod_wsgi to host our Django application.
Apache:
WSGIScriptAlias / /home/rls/django_wsgi.py
django_wsgi.py:
import os, sys
sys.path.append('data/misc/django')
os.environ['DJANGO_SETTINGS_MODULE'] = 'rls.settings'
import django.core.handlers.wsgi
application = django.core.handlers.wsgi.WSGIHandler()
Everything works fine, but occasionally we get 500 Internal Server Error with this in the logs:
mod_wsgi (pid=4825): Exception occurred processing WSGI script '/home/rls/django_wsgi.py'.
Traceback (most recent call last):
File "/usr/lib/python2.5/site-packages/django/core/handlers/wsgi.py", line 230, in __call__
self.load_middleware()
File "/usr/lib/python2.5/site-packages/django/core/handlers/base.py", line 33, in load_middleware
for middleware_path in settings.MIDDLEWARE_CLASSES:
File "/usr/lib/python2.5/site-packages/django/utils/functional.py", line 276, in __getattr__
self._setup()
File "/usr/lib/python2.5/site-packages/django/conf/__init__.py", line 40, in _setup
self._wrapped = Settings(settings_module)
File "/usr/lib/python2.5/site-packages/django/conf/__init__.py", line 75, in __init__
raise ImportError("Could not import settings '%s' (Is it on sys.path? Does it have syntax errors?): %s" % (self.SETTINGS_MODULE, e))
ImportError: Could not import settings 'rls.settings' (Is it on sys.path? Does it have syntax errors?): No module named rls.settings
Of course there are no syntax errors in settings.py since it loads fine every other time. What I'm missing? Thanks very much for your help.
Try to set the absolute path to the directory that contains the file settings.py. In your case should be something like:
sys.path.append('/%s/data/misc/django'%ROOT_2_DATA)
You must also check that apache group has permissions to read/write the folder.