apache

<VirtualHost *>
        WSGIApplicationGroup %{GLOBAL}
        
        
        # Setup Python for the App1
        WSGIDaemonProcess app1 user=www-data group=www-data threads=5
        WSGIScriptAlias /app1 /var/www/app1/app1.wsgi
        <Directory /var/www/app1>
                Order deny,allow
                Allow from all
        </Directory>
        <Location /app1>
                WSGIProcessGroup app1
        </Location>
        
        
        # Setup Python for the App2
        WSGIDaemonProcess app2 user=www-data group=www-data threads=5
        WSGIScriptAlias /app2 /var/www/app2/app2.wsgi

        <Directory /var/www/app2>
                Order deny,allow
                Allow from all
        </Directory>
        <Location /app2>
                WSGIProcessGroup app2
        </Location>
</VirtualHost>

I have created an Issue here:
https://groups.google.com/forum/#!topic/modwsgi/ta87yyuD01Y