[Python-ideas] RFC: PEP: Add dict.__version__

[Terry Reedy]

On 1/11/2016 6:30 PM, Andrew Barnert via Python-ideas wrote:
> On Jan 11, 2016, at 14:56, Terry Reedy
> <tjreedy at udel.edu> wrote:
>>
>> Classes with immutable instances (tuples, numbers, strings, frozen
>> sets, some extension classes, and user classes that take special
>> measures) are exceptions.  So are classes with mutable hashes
>> (lists, sets, dicts, some extension classes, and user classes that
>> override __eq__ and __hash__).
>
> I don't understand your terminology here.

Yes, the term, as a negation, is wrong.  It should be 'classes that 
don't have immutable hashes'.  The list is right, except that 'override' 
should really be 'disable'.

Anyway, Viktor changed the PEP and has moved on, so I will too.

-- 
Terry Jan Reedy