On 22Apr2019 1822, Glenn Linderman wrote:
Inada is now proposing a way to allow the coder to suggest a group of
dictionaries that might benefit from the same gains, by preclassifying
non-__dict__ slot dictionaries to do similar sharing.
CSV reader is an exemplary candidate, because it creates groups of dicts
that use the same keys. (column names). I have other code that does
similar things, that would get similar benefits.
Seems like since it is just an interface to existing builtin code, that
the one interface function (or dictionary factory class) could just as
well be a builtin function, instead of requiring an import.
Sounds like a similar optimisation to sys.intern() is for strings.
I see no reason to try and avoid an import here - it's definitely a
special-case situation - but otherwise having a function to say "clone
and update this dict" that starts by sharing the keys in the same way
that __dict__ does (including the transformation when necessary) seems
like an okay addition. Maybe copy() could just be enabled for this?
Cheers,
Steve
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