On Wed, Oct 27, 2021 at 10:16 AM dn via Python-list <python-list at python.org> wrote: > Programmers of the world unite! > You have nothing to lose but your 0 > - or your 1 Many operations in computing are fully reversible. After you do something, you can undo it. After you assign, you can unassign. And after you ite, you can unite! ChrisA