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[Python-Dev] Is static typing still optional?

Eric V. Smith eric at trueblade.com
Mon Dec 11 15:01:31 EST 2017 
On 12/10/2017 5:00 PM, Raymond Hettinger wrote:
> 
> 
>> On Dec 10, 2017, at 1:37 PM, Eric V. Smith <eric at trueblade.com> wrote:
>>
>> On 12/10/2017 4:29 PM, Ivan Levkivskyi wrote:
>>> On 10 December 2017 at 22:24, Raymond Hettinger <raymond.hettinger at gmail.com<mailto:raymond.hettinger at gmail.com>> wrote:
>>>     Without typing (only the first currently works):
>>>          Point = namedtuple('Point', ['x', 'y', 'z'])          #
>>>     underlying store is a tuple
>>>          Point = make_dataclass('Point', ['x', 'y', 'z'])      #
>>>     underlying store is an instance dict
>>> Hm, I think this is a bug in implementation. The second form should also work.
>>
>> Agreed.
>>
>> I have a bunch of pending changes for dataclasses. I'll add this.

This is bpo-32278.

> I suggest two other fix-ups:
> 
> 1) Let make_dataclass() pass through keyword arguments to _process_class(), so that this will work:
> 
>      Point = make_dataclass('Point', ['x', 'y', 'z'], order=True)

This is bpo-32279.
> 
> 2) Change the default value for "hash" from "None" to "False".  This might take a little effort because there is currently an oddity where setting hash=False causes it to be hashable.  I'm pretty sure this wasn't intended ;-)

No time for this one yet. Soon!

Eric.
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