[Python-Dev] PEP 557: Data Classes
Eric V. Smith
eric at trueblade.com
Fri Sep 8 12:07:42 EDT 2017
Hah! Thanks for the catch.
There is no C in my happy place.
> 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!
>> 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:
> class C:
> int a # 'a' has no default value
> int b = 0 # assign a default value for 'b'
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