[Zope] Building dynamically class instances using external methods.

Question: I am running Zope2.2.2 under python1.5.2 on a linux machine. The following situation: I have an external Method which creates dynamically an instance from of a class depending on some input to a function contained in this method. In short the code (of the external method) class

[Zope] PythonMethod and accessing objects in the ZODB

I'm using the PythonMethod product (latest Version) and Zope2.2.2. The method lives inside a ZClass, which has an common instance propertysheet. Also the method gets an 'self' as argument. Question 1: How do i access the attributes stored within this propertysheet within the method, while

[Zope] ZCatalog question. boolean and wildcards.

Im running Zope 2.2.2 on Linux 2.2.13. When mixing boolean operators and wildcards '*' in queries within a Textindex the 'AND' operator is replaced by 'OR'. Also, the possibility of constructing nested terms using brackets seems to be not supported (contrary to the chapter 'Searching and