[quote:1iw8l0zl]Is it possible to access a "Box" object's private variables from Python?
No, not directly. A recompile of Box.csx would probably fix it so it uses the updated code that Sprite uses.
A current solution is to use a hybrid event/python approach by setting a python variable to one of the box private variables with the "Run Script" System action.
+ System: Start of layout
-> System: Run Script ("foo=" & Box.Value('foo'))