[Python-Dev] Immutability vs. hashability

Guido van Rossum guido at python.org
Sun Feb 4 17:31:06 EST 2018

On Sun, Feb 4, 2018 at 11:59 AM, Chris Barker - NOAA Federal <
chris.barker at noaa.gov> wrote:

> I think the folks that are concerned about this issue are quite right
> — most Python users equate immutable and hashable—so the dataclass API
> should reflect that.

Since they are *not* equivalent (consider a tuple containing a list) I'm
not at all convinced that any API in the core language should "reflect"
this misconception, depending on how you meant that.

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