Thank you very much Alan and Steve for your detailed answers. You have clarified many things and sent me off searching for more information on variant records, tagged and untagged unions, sparse arrays, linked lists, how memory allocation is affected by these topics and some other items.
And I would like to throw out a general THANK YOU to all of the "tutors", who so generously donate your time. I know I have gotten many detailed, patient answers to my queries. I just hope I truly absorb and properly utilize the wisdom passed on to me! boB _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
