[Zope] How to subtract one date from another?

Hi all, I have to to this: date - date = 20 days. (2000-5-5 - 2000-5-2 = 3 days) I checked Zope Quick Reference but couldn´t find a function which provide this. May someone has a python function and can give me this funktion. Thank you Jens ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com