render a macro from python code

I'd like to render a macro from python code.
I saw this recipe http://zopelabs.com/cookbook/1015014229 and instead of 
calling the macro_renderer template from  dtml code I can simply call it 
from python (and it works), but is there a more direct way? (something 
like theTemplate.useMacro('macroname',param1='value2',param2='value2')).

Bye
-- 
Luca Olivetti
Wetron Automatización S.A. http://www.wetron.es/
Tel. +34 93 5883004      Fax +34 93 5883007