On Tue, Apr 23, 2019 at 11:30 AM Steve Dower <steve.do...@python.org> wrote: > > Or possibly just "dict(existing_dict).update(new_items)". >
Do you mean .update accepts values tuple? I can't think it's > My primary concern is still to avoid making CPython performance > characteristics part of the Python language definition. That only makes > it harder for alternate implementations. Note that this proposal is not only for key sharing dict: * We can avoid rebuilding hash table again and again. * We can avoid checking duplicated keys again and again. These characteristics are not only for Python, but for all mapping implementations using hash table. -- Inada Naoki <songofaca...@gmail.com> _______________________________________________ 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
