Hi, csv.DictReader uses OrderedDict by default, from Python 3.6. But it doesn't make sense anymore, like namedtuple._asdict(). How about changing default dict type back to regular dict.
Python is widely used for handling learge data. So I think changing default dict type to OrderedDict was performance and memory usage regression in 3.6. Additionally, configparser uses OrderedDict by default from Python 3.6 too. I am not sure about `parser['section1'] == parser['section2']` is not used yet. But we broke it once in 3.6 by changing dict to OrderedDict. Are there any issue report caused by this backward incompatibility? And I think performance and memory efficiency is not so important for configparser, unlike csv. I'm * +1 about changing csv.DictReader's default dict type * +0.5 about changing configparser's default dict type. How do you think? Regards, -- 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
