Does anyone know enough about Python 2 to propose a fix? I don’t know enough about object classes versus “instance” classes, and potential interference of the __cmp__() method. In Python 2 the order seems to depend on the class type:

(<__main__.A instance at 0x7f730d37f5f0>, <__main__.B instance at 0x7f730d37f518>)
(<__main__.B object at 0x7f730d37dc10>, <__main__.A object at 0x7f730d37d110>)

Or perhaps we should just close this now and forget about Python 2 ;)