I have in my Apache 2 applications: Django app and MoinMoin app. The first one is running now with Python3.4 and the second one (MoinMoin) with Python2.7
When running dpkg:
ruben@babylon:/var/log/apache2$ dpkg -l | grep wsgi
rc libapache2-mod-wsgi 3.4-4ubuntu2.1.14.04.2 amd64 Python WSGI adapter module for Apache
ii libapache2-mod-wsgi-py3 3.4-4ubuntu2.1.14.04.2 amd64 Python 3 WSGI adapter module for Apache
As you were told already in:
you cannot do that within a single Apache instance.
The simple answer as was described is to run a separate WSGI server such as
mod_wsgi-express, or you can use
gunicorn our something else as well, and set it up behind the main Apache instance it with Apache proxying to it.
There are a lot of details around doing this and as also suggested, you are better off asking on the mod_wsgi mailing list if you want to do this with mod_wsgi.
If don't wish to use the mod_wsgi mailing list, then you can find some information in:
It talks about proxying to backend WSGI application running in Docker, but all the same principles apply as to setting up the proxy fronted and the issues that arise.