Enabling WMS server functions with Python Mapscript

[Myunghwa Hwang]

Hello!

I developed a web map service by using Python Mapscript. 
This application is based on CGI, that is, 
basic CGI in Apache executes python script.
I didn't use mod_python. 
Till now, I didn't include any tags for metadata in my map file, so now I want to include them.
I looked at how-to doc in MapServer homepage, and got a question. 
The doc says for wms_onlineresource I have to use the url of mapserv cgi.
But if I do that, it means that I have to use mapserv cgi for distributing my data 
and also use a simple cgi using python for my application, doesn't it?
And this structure seems to be wierd. 
I found a python script for providing metadata and it used mod_python. 

So if I use mod_python, then don't I need to use mapserv?
Is there any way for WMS by using only python without any changes?

The next question is if I use mod_python, can I improve the performance of my application?
I wonder if other people using python and mapserver prefer mod_python to simple cgi.

Thanks for your answers ^^.

from Myunghwa Hwang