[Python-ideas] Unpacking a dict
Ethan Furman
ethan at stoneleaf.us
Mon May 30 23:00:41 EDT 2016
On 05/30/2016 08:07 AM, Nikolaus Rath wrote:
> On May 29 2016, Guido van Rossum <guido-+ZN9ApsXKcEdnm+yROfE0A at public.gmane.org> wrote:
>>> using other words still on the table?
>>>
>>> d = {"foo": 42}
>>> <something> d <something> 42 # or the other way around
>>> assert foo == 42
>>
>> This I don't understand -- why would the '42' appear in the extraction
>> syntax? I guess you meant "foo"?
>
> Yes, sorry.
>
>> Maybe we can riff on
>>
>> extract foo from d
>>
>> ? Though honestly that looks like it would be extracting d.foo, no
>> d['foo'].
>
> Yeah, but that might be useful too :-). How about:
>
> extract key foo from d
> extract attribute foo import d
>
> or
>
> export key foo from d
> export attribute foo import d
>
> As for "import", with both foo and d required to be identifiers.
The versions with "import" in them are DAAP (dead-as-a-parrot). No
point in even talking about them.
--
~Ethan~
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