Daniel Stutzbach <dan...@stutzbachenterprises.com> added the comment:
The swap bodies technique has been used in list.sort for a long time, but users expect list.sort to mutate the list. Even with a pure-Python implementation of sets, I would not expect __contains__ to be a mutating method (unless I have gone out of way to write an evil __eq__ or __hash__ function). I grant you that I would not expect atomicity, but the example script does not assume atomicity. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue8757> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
