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

Eric Snow ericsnowcurrently at gmail.com
Wed Sep 14 18:50:42 EDT 2016

On Wed, Sep 14, 2016 at 7:33 AM, INADA Naoki <songofacandy at gmail.com> wrote:

I'll improve OrderedDict after dict in 3.6 is stable enough.

+1 and if it's done carefully we could even utilize the pure Python OrderedDict and get rid of odictobject.c (and fold dict-common.h back into dictobject.c). We'd need to leave the current implementation as the fallback for implementations that don't have an ordered dict. However, we'd first try a compact-dict-based variant. Doing so would probably require a new field in sys.implementation that indicates dict is ordered.

Then, I'll do same to sets.

Unless I've misunderstood, Raymond was opposed to making a similar change to set.

-eric

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