Referring to same interface using zope.schema.Object

Hello,

I am trying to construct an object tree. Every node in the tree is of
the same type. I am trying to achieve something like:

        class INode(Interface):
        
            parent = Object(
                title=u"Parent node",
                schema=INode
                )
        
            children = List(
                title=u'Child nodes',
                value_type=Object(schema=INode)
                )

The above fails with "NameError: name 'INode' is not defined". Any clues
as to how to solve this?

Regards,
Joe

-- 
Joe Steeve
HiPro IT Solutions Pvt. Ltd.
http://hipro.co.in/

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