[Python-ideas] Adding "+" and "+=" operators to dict
Ethan Furman
ethan at stoneleaf.us
Thu Feb 12 19:27:54 CET 2015
On 02/12/2015 10:21 AM, Thomas Kluyver wrote:
> Would this be less controversial if it were a new method rather than an odd use of an operator? I get the impression
> that most of the objections are especially against using an operator.
>
> While I think the operator is elegant, I would be almost as happy with a method, e.g. updated(). It also makes the
> semantics very clear when e.g. Counter objects are involved:
>
> new = a.updated(b)
> # equivalent to
> new = a.copy()
> new.update(b)
If we go with "updated" then it should be a separate function, like "sorted" and "reveresed" are.
--
~Ethan~
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