[Python-Dev] Immutability vs. hashability

[Antoine Pitrou]

On Sun, 4 Feb 2018 14:31:06 -0800
Guido van Rossum <guido at python.org> wrote:
> 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.

+1 from me.

Regards

Antoine.