Raymond Hettinger <raymond.hettin...@gmail.com> added the comment:
> Overall, I expect the improved sharing to more than > compensate for the disadvantages. I expect the opposite. This makes all dicts pay a price (in space, initialization time, and complexity) for a micro-optimization of an uncommon case (the normal case is for __init__ to run and set all the keys in a consistent order). It is unlikely that the "benefits" to never be felt in real-word applications, but "disadvantages" would affect every Python program. > The language specification says that the dicts maintain insertion > order, but the wording implies that this only to explicit > dictionaries, not instance attribute or other namespace dicts. That is a quite liberal reading of the spec. I would object to making instance and namespace dicts behave differently. That would be a behavior regression and we would forever have to wrestle with the difference. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue40116> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
