On Wed, Jan 30, 2013 at 11:36 PM, Zhongyue Luo <zhongyue.nah at intel.com>wrote: > What I'm suggesting is that we should add an entry in HACKING.rst stating > we should use "if X not in Y" and prevent mix use of the two. > -1, This just seems like silliness. I suppose you would disallow this too: flag = key in dict if not flag: If there some performance or correctness reason, then I'd go with it. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20130131/131647da/attachment.html>