cpita wrote:

Hi!

I have an ExtensionClass(es) question and, being the latest releases of them distributed with Zope, I decided to ask it here.

OK, let's move this to zope-dev.

Situation:

1) Class A subclasses 2+ extension classes E = {E1,...,En} and perhaps another non extension classes C = {C1,...,Cm}. That is, class A(B1,...,Bk): ...., where B1,...,Bk are each in E or in C. 2) a is an instance of A (a = A()) 3) a.foo(bar) is invoked 4) getattr is invoked in the first extension class in the inherited classes list (i.e. the first Bi belonging to E)

Question:

What happens then? I guess that calling Py_FindMethod (inside getattr implementation) will trigger a search in instance and base classes' dictionaries, but what about the other extension base classes and what about the searching order? I can't find any doc on these, so I'm needing your help.

The search order is: 1. Instance dictionary 2. Class dictionary 3. Do depth-first search of base classes from left to right. In other words, the search order is the same as for getattr on Python instances, except that some base classes can be in C. Jim -- Jim Fulton mailto:jim@digicool.com Python Powered! Technical Director (888) 344-4332 http://www.python.org Digital Creations http://www.digicool.com http://www.zope.org Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email address may not be added to any commercial mail list with out my permission. Violation of my privacy with advertising or SPAM will result in a suit for a MINIMUM of $500 damages/incident, $1500 for repeats.