> On 31 Oct 2020, at 06:35, Steven D'Aprano <st...@pearwood.info> wrote:
>
> I think we can promise that:
>
> * if the mapping on the right has missing keys, no assignments occur;
>
> * if the mapping on the right has extra keys, and there is no double
> star target to capture the extras, then no assignments occur;
Why must I always handle all keys in the dictionary?
I can think of cases where I want to pull more than 1 key out of a dictionary
but do not care about the rest.
I have a dict containing config items. I just need a couple of the keys not all
of them.
I have a JSON response and the code is only interested in some of the values
returned.
For the pattern of passing **kwds down the __init__ chain I would clearly want
to use the form:
{'myitem': self.myitem, **other_kwds} = kwds
>
> * otherwise, assignments occur from left to right.
Barry
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