http://docs.python.org/library/asyncore.html has this bit (for bind()):

    (The format of address depends on the address family — see above.)

The only way this makes sense is if it points back to the "family" argument used in the create_socket() documentation, but even there the term "family" isn't actually used in the description, and it's unclear that the reference to the socket module documentation "for information on creating sockets" will have more information about the address constraints for bind(). It would probably be better if the bind() description referred to the socket documentation directly.