[Zope] Exceptions and Python Scripts

Hi, I'd like to do a try...except in a Python Script. Unfortunately, it doesn't look like I'm allowed to import the exceptions module: Error Type: ImportError Error Value: import of "Exceptions" is unauthorized Is that intended? Where should I get hold of exception classes to use in Python Scripts? To make matters worse, a lot of Zope's internals still throw string based errors, so a very general except clause is the only way to catch them. Unfortunately, the only way to analyise those exceptions is to use sys.exec_info(), but using that in a python script always throws up an authenticatino box. Any ideas how to solve these problems? cheers, Chris