Dirk Zimmermann wrote: > But still, it is not absolutely clear for me, what is going on. So, at > least just for my understanding: The parameter LL is created just once > for the whole class and not for the object
Yes. And because a lists are mutable, you can alter that one instance of the list - and teh following instances of your class ill see the changes. This is really a common mistake. Diez -- http://mail.python.org/mailman/listinfo/python-list