On 5/25/21 8:33 AM, Damian Shaw wrote:
> On Tue, May 25, 2021 at 11:02 AM Ethan Furman wrote:
>> On 5/25/21 5:23 AM, Chris Angelico wrote:
>>> On Tue, May 25, 2021 at 9:55 PM Shreyan Avigyan wrote:
>>>> The proposed syntax is as follows,
>>>>
>>>> constant x = 10
>>>> constant y = ["List"]
>>>> constant z: str = "Hi"
>>>
>>> https://docs.python.org/3/library/typing.html#typing.Final
>>>
>>> Already exists :)
>>
>> Optional typing != core Python.
>
> It's still a Python feature even if it's not a language feature, it's well
defined
> by PEP and any type checker wanting to implement type hinting to spec must
include it.
>
> Further type hinting allows developers who want to use a Constant / Final
feature get
> the benefit already from type hinting, whereas developers who want to stick
to the
> pythonic philosophy of "we're all consenting adults here" can still mess with
the
> code but know it's not supported at all. As far as I can see it's the best of
both
> worlds.
>
> Could you please list in your proposal the real world benefits vs. the
existing type
> hinting feature?
To be clear, this is not my proposal, and I completely agree with David Mertz.
I am
-1
on the proposal. Nevertheless, the proposal is not satisfied by a stdlib module that is completely ignored by the
Python runtime -- that was the only point I was trying to make.
--
~Ethan~
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