[Python-ideas] dict.setdefault_call(), or API variations thereupon

[Guido van Rossum]

On Thu, Nov 1, 2018 at 7:23 PM Robert Vanden Eynde <robertve92 at gmail.com>
wrote:

> The two are less connected than you seem to think.
>>
>
> Really ? What's the use mainstream use cases for setdefault ?
> I was often in the case of Alex.
>

Well, defaultdict configures a default when an instance is created, while
setdefault() is used when inserting a value.

A major issue IMO with defaultdict is that if you try to *read* a
non-existing key it will be inserted.

-- 
--Guido van Rossum (python.org/~guido)
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