/etc/apache2/mods-enabled/wsgi.conf
WSGIDaemonProcess example.com python-path=/path/to/virtualenv/lib/python2.7/site-packages:/path/to/djangoapp
WSGIProcessGroup example.com
/etc/apache2/sites-enabled/mysite
<VirtualHost....>
WSGIScriptAlias /django /path/to/djangoapp/wsgi.py process-group=example.com
<Directory /path/to/djangoapp>
<Files wsgi.py>
Require all granted
</Files>
</Directory>
</Virtualhost>