Alex Hall wrote:
So by calling submarine(craft) I am bringing in all of craft's attribs (subclassing)? Or does calling craft's __init__ method do that instead?
By making Submarine a subclass of Craft, you are inheriting any methods, or other class attributes, defined in the classes themselves. Instance attributes are a little different -- they only come into existence when you assign to them, which is usually done for the first time in the __init__ method. Each instance has its own dictionary that holds the values of its instance attributes, and it's just a flat namespace -- there is no real distinction between an instance attribute of a class or a subclass. Any "inheritance" of instance attributes is just a consequence of one __init__ method calling another. -- Greg -- http://mail.python.org/mailman/listinfo/python-list