[Python-Dev] Python 3.6 dict becomes compact and gets a private version; and keywords become ordered

[Victor Stinner]

2016-09-08 13:36 GMT-07:00 Guido van Rossum <guido at python.org>:
> IIUC there's one small thing we might still want to change somewhere
> after 3.6b1 but before 3.6rc1: the order is not preserved when you
> delete some keys and then add some other keys. Apparently PyPy has
> come up with a clever solution for this, and we should probably adopt
> it, but it's probably best not to hurry that for 3.6b1.

Very good news: I was wrong, Raymond Hettinger confirmed that the
Python 3.6 dict *already* preserves the items order in all cases. In
short, Python 3.6 dict = Python 3.5 OrderedDict (in fact, OrderedDict
has a few more methods).

Victor