[Zope] pythong product container

[Tom Cameron]

I am struggling with developing a python product. I can find a few
reasonable examples of simple products. But I cant find any examples of
products that contain other products.

I have previously used ZClasses and by nesting them I can easily create
products that are only available within a specific product.

I wish to do the same in a python product (at least three levels deep).

Can anyone point me to some good documentation, or at least to a good
example.

Thanks
Tom