API Notes: CoreData framework
An introduction to PyObjC describes the general method for translating Objective-C calls into Python calls, including the handling of pass-by-reference arguments and buffers.
This document describes where the PyObjC bindings for this framework are different from the general rule, such as mentioning APIs that are not supported or where the interface is different than expected.
When you’re running on MacOSX 10.4 PyObjC will automaticly translate
Python attribute access in KVO access to the underlying
This functionality no longer works on MacOSX 10.5, you have to use proper
KVO methods to access properties to be compatible with both OSX 10.4 and 10.5.
observationInfocannot be used from Python.