Have you looked at either of these libraries?

http://cheeseshop.python.org/pyp...pypi/ ProxyTypes
http://cheeseshop.python.org/pyp...pypi/ zope.proxy

ProxyTypes is pure Python, and zope.proxy is implemented in C. They have different strengths and weaknesses, but both are new-sytle classes and can lie about the object's class, such that isinstance(aProxy, classOfThingProxied) is true.
Phillip J. Eby | Homepage | 07/03/19 - 6:01 pm | #

This was mainly an exploration, but we need something similar soon at Resolver. It would be for IronPython, so a pure Python module might be of interest. We will have to customise the proxying though - it has to wrap the returned objects in some cases.
Fuzzyman | Homepage | 07/03/19 - 9:26 pm | #

Where do you get the icons for your posts from? They are awesome.
Jonathan Hartley | Homepage | 07/03/19 - 11:12 pm | #

I have harvested them from various places over the years.
Fuzzyman | Homepage | 07/03/19 - 11:47 pm | #