[Python-ideas] PEP: Dict addition and subtraction

[James Lu]

> On Mar 4, 2019, at 10:02 AM, Stefan Behnel <stefan_ml at behnel.de> wrote:
> 
> INADA Naoki schrieb am 04.03.19 um 11:15:
>> Why statement is not enough?
> 
> I'm not sure I understand why you're asking this, but a statement is "not
> enough" because it's a statement and not an expression. It does not replace
> the convenience of an expression.
> 
> Stefan
There is already an expression for key-overriding merge. Why do we need a new one?