Easier way to exclude members from builtin sections

[kalekundert]

Section classes should the ability to easily exclude members that would be matched by another section. A good way to do this might be to add a class member called exclude (or something to that effect) which could be a list of Section classes (not instances). Any members that match any of the excluded sections will not be included in the section in question. For example:

class MyCustomMethods(Section):
    def predicate(self, name, attr, meta):
        return ...

class MyPublicMethods(PublicMethods):
    exclude = [MyCustomMethods]

[funkyfuture]

that looks reasonable as design. but exclude is too broad as a name. i'd come up with no_duplicates_from_sections, but a native english speaker certainly does better.