[Zope] manage_workspace

Hello, I'am looking for the source-code from "manage_workspace". Where do I find this file or is it part of a *.py - file ? Thank you very much for your help Mechtild Hofmann -- http://www.der-schwarzwald-bebt.de/Wolterdingen - in der Heimat passiert was! info@hofmann-design.de T: 07705 / 919391