Rhodri, > Use weak references. A WeakSet > (https://docs.python.org/3/library/weakref.html#weakref.WeakSet) is > probably what you want.
Most likely! As a fresh freshling in regard to python I was not even aware that a "copy object, but do not increment the reference count" existed. Thank you. Could cause some interresting "the object has disappeared!" problems when you're not carefull with it though ... :-) Regards, Rudy Wieser -- https://mail.python.org/mailman/listinfo/python-list
