ImportError: No module named django.core.wsgi Apache + VirtualEnv + AWS + WSGI

Question

I am trying to publish my site on an Amazon's EC2 Instance, and I keep getting a 500 error. I really dunno why.

//Log Files

    [Sun Feb 17 23:12:48.066802 2013] mod_wsgi (pid=2102): Target WSGI script '/srv/www/app/poka/apache/wsgi.py' cannot be loaded as Python module.
    [Sun Feb 17 23:12:48.066840 2013] mod_wsgi (pid=2102): Exception occurred processing WSGI script '/srv/www/app/poka/apache/wsgi.py'.
    [Sun Feb 17 23:12:48.066864 2013] Traceback (most recent call last):
    [Sun Feb 17 23:12:48.066889 2013] File "/srv/www/mysite/poka/apache/wsgi.py", line 26, in <module>
    [Sun Feb 17 23:12:48.066920 2013] from django.core.wsgi import get_wsgi_application
    [Sun Feb 17 23:12:48.066945 2013] ImportError: No module named django.core.wsgi

//Apache Config Files

    WSGIScriptAlias / /srv/www/app/mysite/apache/wsgi.py

    WSGIDaemonProcess mysite python-path=/srv/www/app/mysite:/home/ec2-user/.virtualenvs/mysite-main/lib/python2.7/site-packages
    WSGIProcessGroup mysite

    <Directory /srv/www/app/mysite/apache/>
    <Files wsgi.py>
    Order deny,allow
    Allow from all
    </Files>
    </Directory>

    <Directory /srv/www/app/mysite/apache/>
    Order deny,allow
    Allow from all
    </Directory>

    <Directory /home/ec2-user/app/mysite/static>
    Order deny,allow
    Allow from all
    </Directory>

    <Directory /home/ec2-user/app/mysite/media>
    Order deny,allow
    Allow from all
    </Directory>

//wsgi.py

    import os
    import sys
    import site

    site.addsitedir('/home/ec2-user/.virtualenvs/mysite-main/lib/python2.7/site-packages')
    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite.settings")

    from django.core.wsgi import get_wsgi_application
    application = get_wsgi_application()

    path = '/srv/www/app/mysite'

    if path not in sys.path:
        sys.path.append(path)

Answer 1

I know that this is an old thread but I've just bumped into the same issue and I don't think that this is caused by a missing package. As the Django core distribution contains the correct wsgi handler already.

The problem here is that when wsgi.py is executed it's missing the packages of the site-packages from your virtualenv. (If you have activated your virtualenv, and done pip install django then everything is fine. You have the necessary django packages).

As far as I'm concerned, I fixed the issue modifying the sys.path in my Path/to/Project/Project/wsgi.py file.

You have to append your project dir and your virtualenv site-packages to the sys.path List. Here is my wsgi.py file contained in my project (Talking about the wsgi.py created with django-admin.py start-project)... that I had to modify in order to make it work with Apache

# =====================
# wsgi.py file begin 

import os, sys
# add the hellodjango project path into the sys.path
sys.path.append('<PATH_TO_MY_DJANGO_PROJECT>/hellodjango')

# add the virtualenv site-packages path to the sys.path
sys.path.append('<PATH_TO_VIRTUALENV>/Lib/site-packages')

# poiting to the project settings
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "hellodjango.settings")

from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()

# wsgi.py file end
# ===================

Make sure:

1. you added mod_wsgi to the Apache modules dir mod_wsgi must be compiled for the OS, Apache and Python version you have

2. added the load module command into your httpd.conf to load mod_wsgi module LoadModule wsgi_module modules/mod_wsgi.so

3. configured Django specifics in your httpd.conf or any conf you include in your httpd.conf

Based on the documentation How to use Django with Apache and mod_wsgi

WSGIScriptAlias / <PATH_TO_PROJECT>/hellodjango/hellodjango/wsgi.py
WSGIPythonPath <PATH_TO_PROJECT>:<PATH_TO_VIRTUALENV>/Lib/site-packages

<Directory <PATH_TO_PROJECT>/hellodjango/hellodjango> 
  <Files wsgi.py>
    Order deny,allow
    Require all granted
  </Files>
</Directory>

Hope this helps. It worked for me.