Chris Withers wrote:
> 
> If I define the following in an Article class (which subclasses
> Posting):
> 
> __ac_permissions__ = Posting.__ac_permissions__ + (
> ('View', ['prev_item','next_item','showSummary','desc_items'],
> ('Anonymous', 'Manager')),
> )

You don't need to concatenate the permissions of the base classes. 
default__class_init__ will pick them up.

> 
> and Posting.__ac_permissions__ also defines a 'View' permission, which
> methods are covered?

Assertions made on a method in a subclass override the assertions made
in the base class.

I hope that's clear enough...

Shane

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