hi, every one
    I'm a novice to zope. when I follow the example of zoopBook2.7 (http://www.plope.com/Books/2_7Edition/CustomZopeObjects.stx#2-47), I failed in adding ZClass instance. And the errlog is below.
    Can someone tell me what's wrong or how sould I to fix it or where to find the answer. Thanks.

by nienfeng


Exception Value default __new__ takes no parameters

Traceback (innermost last):

TypeError: default __new__ takes no parameters