wsgi apache setup with error logging and virtualenv

apache.wsgi

import sys 
sys.stdout = sys.stderr
sys.path.insert(0,'/home/user/public/appname.example.com/public/appname')
activate_this = '/home/user/public/appname.example.com/public/appname/appvirtualenv/bin/activate_this.py'
execfile(activate_this, dict(__file__=activate_this))
from app import app as application

wsgi.conf

# domain: appname.example.com
# public: /home/user/public/appname.example.com/

<VirtualHost *:8080>
    ServerAdmin admin@example.com
    ServerName appname.example.com
    ServerAlias appname.example.com

    WSGIDaemonProcess appname
    WSGIScriptAlias / /home/user/public/appname.example.com/public/appname/apache.wsgi

    LogLevel warn
    ErrorLog /home/user/public/appname.example.com/log/error.log
    CustomLog /home/user/public/appname.example.com/log/access.log combined

    <Directory /home/user/public/appname.example.com/public/appname >
        WSGIProcessGroup appname
        WSGIApplicationGroup %{GLOBAL}
        Order deny,allow
        Allow from all 
    </Directory>

</VirtualHost>