On 8 September 2017 at 15:57, Eric V. Smith
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' """