On Thu, Mar 5, 2015, at 22:49, Chris Angelico wrote: > I'm not sure it's just an optimization. Compare this post from > python-dev, where Nick Coghlan discusses the same topic: > > https://mail.python.org/pipermail/python-dev/2014-July/135476.html
If it is a bug for NaN to "infect" containers' behavior, we need to take a serious look at sort(). -- https://mail.python.org/mailman/listinfo/python-list