How to fake type with Python

Question

I recently developed a class named DocumentWrapper around some ORM document object in Python to transparently add some features to it without changing its inter

Answer 1

The best way is to inherit DocumentWrapper from the User itself, or mix-in pattern and doing multiple inherintance from many classes

 class DocumentWrapper(User, object)

You can also fake isinstance() results by manipulating obj.__class__ but this is deep level magic and should not be done.