Hello, I want to write my own instance of FOlder product maintaining a set of keywords. This worked so far but I want to strip some spaces from the keywords the user might have prepended/appended. I wanted to use the following code: ob=MyFolder() ob.id=str(id) ob.title=title ob.keywords={} for kw in keywords: kw=kw.strip() if kw != '' : ob.keywords.append(kw) self._setObject(id, ob) ob=self._getOb(id) Well, obviousely this is intended to work under python2.1. Because of a broken Zope 2.4.2 installation which does not show up my product in the products folder mysteriousely (see thread "Problems writing a new product") I use Zope 2.3.3 (Debian/GNU Linux Woody zope_2.3.3-1) which depends from Python 1.5 - at least under my system. If I link /usr/bin/python to /usr/bin/python2.1 zope does not start because of some modules (namely 'os') are not found. So how can I write this code safe even for older Python versions or does anybody has an idea how to fix the broken Zope installation? What other logfiles could I observe. I did not found any others than Z2.log. Kind regards Andreas.