On Sat, Apr 13, 2019 at 12:38 AM Serhiy Storchaka <storch...@gmail.com> wrote: > > It looks contrary to simplification made in Python 3 when we get rid of > some more efficient lists in favor of more general iterators. >
Yes. This is API for special use case creates many dict having same keys, like csv.DictReader. It is not good design for general purpose. strings module has strings.Template class. But I don't want to add dicts module. Maybe, collections.DictBuilder may be another option. e.g. >>> from collections import DictBuilder >>> builder = DictBuilder(tuple("abc")) >>> builder.build(range(3)) {"a": 0, "b": 1, "c": 2} > If this is a common case we can add an invisible optimization for > dict(zip(keys, values)), especially if keys is a key-sharing dictionary. > This will benefit all users without the need to rewrite the code to use > the new special method. But this optimization may slow down when creating one dict... > > The interface of dict is already overloaded. It contains many methods > which most users use rarely (and therefore which are not kept in the > working set of memory). Yes. -- 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