On Fri, Jun 17, 2016 at 2:36 AM, Nick Coghlan <ncogh...@gmail.com> wrote: > On 16 June 2016 at 14:17, Martin Teichmann <lkb.teichm...@gmail.com> wrote:
> An implementation like PyPy, with an inherently ordered standard dict > implementation, can just rely on that rather than being obliged to > switch to their full collections.OrderedDict type. I didin't know that PyPy has actually implemented packed ordered dicts! https://morepypy.blogspot.ru/2015/01/faster-more-memory-efficient-and-more.html https://mail.python.org/pipermail/python-dev/2012-December/123028.html This old idea by Raymond Hettinger is vastly superior to __definition_order__ duct tape (now that PyPy has validated it). It also gives kwarg order for free, which is important in many metaprogramming scenarios. Not to mention memory usage reduction and dict operations speedup... _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
