[Python-Dev] How about updating OrderedDict in csv and configparser to regular dict?
mike at selik.org
Thu Jan 31 03:04:36 EST 2019
Waiting on review
On Thu, Jan 31, 2019, 12:04 AM INADA Naoki <songofacandy at gmail.com wrote:
> I'm sorry, configparser is changed already.
> On Thu, Jan 31, 2019 at 4:52 PM INADA Naoki <songofacandy at gmail.com>
> > 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
> > 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
> > 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 <songofacandy at gmail.com>
> INADA Naoki <songofacandy at gmail.com>
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> Python-Dev at python.org
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