[Zope] getPhysicalPath of a DTML Method?

Hi, Acquisition is a very good feature. But it's hard for me to find out which DTML Method is on working. After several levels of inheritance by subclass from parent ZClasses. Some methods of the same name were created in different level. Then it becomes to be hard to know which one was called. Frankly, I just spent lots of time to figure out one of the "ghost method" which is of "old" content should be deleted before. Can someone give me a hint? How to "getPhysicalPath" of a DTML Method? BTW, 1. The "method.this().absolute_url(1)" work-around dosen't work for me. 2. The "_.hasattr(aq_explicit,'method')" returns 1, but (in an external method) self._delOb('method') raises "NotFound" exception. Thanks Iap