Question

I’ve been told wsgi is the way to go and not mod_python. But more specifically, how would you set up your multi website server environment? Choice of web server, etc?

Answer 1

Apache+mod_wsgi is a common choice.

Here’s a simple example vhost, setup up to map any requests for /wsgi/something to the application (which can then look at PATH_INFO to choose an action, or however you are doing your dispatching). The root URL ‘/’ is also routed to the WSGI application.

LoadModule wsgi_module /usr/local/lib/mod_wsgi.so ...  <VirtualHost *:80>     ServerName                  www.example.com     DocumentRoot                /www/example/htdocs     WSGIScriptAliasMatch ^/$    /www/example/application.py     WSGIScriptAlias      /wsgi  /www/example/application.py </VirtualHost> 

You can use the WSGIProcessGroup directive to separate handlers for different vhosts if you like. If you need vhosts’ scripts to be run under different users you’ll need to use WSGIDaemonProcess instead of the embedded Python interpreter.

application.py would, when run, leave your WSGI callable in the global ‘application’ variable. You can also add a run-as-main footer for compatibility with old-school CGI:

#!/usr/bin/env python from mymodule import MyApplication  application= MyApplication()  if __name__=='main':     import wsgiref.handlers     wsgiref.handlers.CGIHandler().run(application)