[Zope] "creating XML Applications With Zope"

[Andrew Diller]

In Amos Latteier's "creating XML Applications With Zope" at
http://www.xml.com/pub/1999/12/zope/index.html


There is an example that uses a Zcatalog.

He says to enter this into the expr field of the "Find Items to Zcatalog":

getNodeName()=='entry'


and click find.

When I do this with my own version, or even his version 
Zope gets this error:

Zope has encountered an error while publishing this resource. 

           Error Type: NameError
           Error Value: Eval


it has to do with that entry in expr.

Is that a typo?