[Python-Dev] Is static typing still optional?

[Chris Barker]

On Sat, Dec 23, 2017 at 5:54 PM, Nick Coghlan <ncoghlan at gmail.com> wrote:

>
> I still wonder about the "fields *must* be annotated" constraint though. I
> can understand a constraint that the style be *consistent* (i.e. all fields
> as annotations, or all fields as field instances), since that's needed to
> determine the field order, but I don't see the problem with the "no
> annotations" style otherwise.
>

IIUC, without annotations, there is no way to set a field with no default.

And supporting both approaches violates "only one way to do it" in, I
think, a confusing manner -- particularly if you can't mix and match them.

Also, could does using class attributes without annotations make a mess
when subclassing? -- no I haven't thought that out yet.

-CHB








>
> Cheers,
> Nick.
>
>
>
>
>


-- 

Christopher Barker, Ph.D.
Oceanographer

Emergency Response Division
NOAA/NOS/OR&R            (206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115       (206) 526-6317   main reception

Chris.Barker at noaa.gov
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/python-dev/attachments/20171226/d32cb8aa/attachment.html>