[Python-ideas] Adding "+" and "+=" operators to dict

[Eric Snow]

On Feb 12, 2015 6:41 PM, "Ethan Furman" <ethan at stoneleaf.us> wrote:
>
> On 02/12/2015 04:30 PM, Ethan Furman wrote:
> > On 02/12/2015 04:26 PM, Eric Snow wrote:
> >> On Thu, Feb 12, 2015 at 11:21 AM, Thomas Kluyver <thomas at kluyver.me.uk>
wrote:
> >>> Or perhaps even a classmethod:
> >>>
> >>> dict.merged(a, b, c)
> >>
> >> A dict factory classmethod like this is the best proposal I've seen
> >> thus far. *  It would be nice if the spelling were more succinct
> >> (that's where syntax is helpful).  Imagine:
> >>
> >>   some_func(**dict.merged(a, b, c))
> >
> > That looks an awful lot like
> >
> >     some_func(**chainmap(a, b, c))
>
> or maybe that should be
>
>      some_func(**chainmap(c, b, a))
>
> ?

Right.  With chainmap leftmost wins.

-eric

>
> Whatever we choose, if we choose anything, should keep the rightmost wins
behavior.
>
> --
> ~Ethan~
>
>
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