Python module dependency

Question

Ok I have two modules, each containing a class, the problem is their classes reference each other.

Lets say for example I had a room module and a person module containin

Answer 1

No need to import CRoom

You don't use CRoom in person.py, so don't import it. Due to dynamic binding, Python doesn't need to "see all class definitions at compile time".

If you actually do use CRoom in person.py, then change from room import CRoom to import room and use module-qualified form room.CRoom. See Effbot's Circular Imports for details.

Sidenote: you probably have an error in Self.NextId += 1 line. It increments NextId of instance, not NextId of class. To increment class's counter use CRoom.NextId += 1 or Self.__class__.NextId += 1.