[Python-Dev] PEP 557: Data Classes

[Eric V. Smith]

On 9/8/17 9:07 AM, Eric V. Smith wrote:
> Hah! Thanks for the catch.

I've pushed a fix to the PEP repo, it should show up online shortly.

Eric.

>
> There is no C in my happy place.
>
> --
> Eric.
>
>> On Sep 8, 2017, at 8:52 AM, Paul Moore <p.f.moore at gmail.com> wrote:
>>
>>> On 8 September 2017 at 15:57, Eric V. Smith <eric at trueblade.com> wrote:
>>> I've written a PEP for what might be thought of as "mutable namedtuples with
>>> defaults, but not inheriting tuple's behavior" (a mouthful, but it sounded
>>> simpler when I first thought of it). It's heavily influenced by the attrs
>>> project. It uses PEP 526 type annotations to define fields.
>> [...]
>>> The PEP is largely complete, but could use some filling out in places.
>>> Comments welcome!
>>>
>>> Eric.
>>>
>>> P.S. I wrote this PEP when I was in my happy place.
>>
>> Looks good! One minor point - apparently in your happy place, C and
>> Python have the same syntax :-)
>>
>> """
>> field's may optionally specify a default value, using normal Python syntax:
>>
>> @dataclass
>> class C:
>>    int a       # 'a' has no default value
>>    int b = 0   # assign a default value for 'b'
>> """
>
> _______________________________________________
> Python-Dev mailing list
> Python-Dev at python.org
> https://mail.python.org/mailman/listinfo/python-dev
> Unsubscribe: https://mail.python.org/mailman/options/python-dev/eric%2Ba-python-dev%40trueblade.com
>