Hello again! Suppose that I have several subclasses which inherit from a base class, thus:
class Foo(object): class Spam1(Foo): class Spam2(Foo): class Spam3(Foo): etc. The list of subclasses is not fully defined. It is supposed to be extensible by the user. Many methods will differ between these classes. However, there are operations which may be performed between two Foo objects, OR between any of Foo's derivatives. There are instances where I would like to perform type checking before carrying out the operation. Rather than having to enumerate all of Foo's subclasses (which would defeat my intent of extending the list of subclasses anyway), I would like to see whether a class is DERIVED from Foo. Where is this information stored in the class definition? Thanks! -- http://mail.python.org/mailman/listinfo/python-list
