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A comment on PEP 584 – Add + and – operators to the built-in dict class. Parent comment

Re:PEP 584 – Add + and – operators to the built-in dict class by makapuf on Wednesday March 06, 2019 @04:59AM (#19317690)
The extension operator still resembles more a set union than an addition. The fact that it is not commutative is not imo an argument since sum is even more frequently used with a commutative semantics.
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