[mod_python] default function?

If I try doing http://mysite.com/mycode.py I get a 404 error. If I do 
http://mysite.com/mycode.py/ I get an error 'Mod_python error: 
"PythonHandler mod_python.publisher"'. http://mysite.com/mycode.py/index 
works as expected. Any idea what I'm doing wrong?

> If you call mycode.py the function mycode.py/index is called, if you 
> implemented it in mycode.py.
> However, I am not so experienced to know whether you can change the 
> name of this default function.