[ZPublisher] how to install ?

[truce]

Hi!
I'm using mod_python and from the docs I've read about
ZPublisher.

I would like to use the great ability to point to a function inside
a module from URL ... http://server/site/module/function

how can I do this?
is this the only way to do this ?
I don't want to use all Zope, and if possible some solution
that use my version of python 2.2 ...

thax a lot
davide.