[Python-Dev] Concerns about method overriding and subclassing with dataclasses (original) (raw)

Ethan Smith ethan at ethanhs.me
Fri Dec 29 21:52:11 EST 2017

Okay, I think Guido's proposal is a good compromise.

I already have a branch of dataclasses that should implement that behavior, so perhaps it was meant to be. :)

~>Ethan Smith

On Fri, Dec 29, 2017 at 5:13 PM, Nick Coghlan <ncoghlan at gmail.com> wrote:

On 30 Dec. 2017 11:01 am, "Ethan Smith" <ethan at ethanhs.me> wrote:

On Fri, Dec 29, 2017 at 4:52 PM, Guido van Rossum <guido at python.org> wrote: I still think it should overrides anything that's just inherited but nothing that's defined in the class being decorated.

Could you explain why you are of this opinion? Is it a concern about complexity of implementation? Adding a new method to a base class shouldn't risk breaking existing subclasses. If folks want to retain the base class implementation, they can request that explicitly (and doing so isn't redundant at the point of subclass definition the way it is for methods defined in the class body). Cheers, Nick. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20171229/a166d552/attachment.html>

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