On 12/29/2017 11:55 AM, Ethan Smith wrote:
On Fri, Dec 29, 2017 at 11:37 AM, Ethan Furman wrote:

It is possible to determine whether an existing __repr__ is from 'object'
>> or not, and only provide one if that is the case.  I think that should be
>> the default, with 'repr = True' for those cases where a new, auto-generated,
__repr__ is desired.

The only other thing you'd want to handle is to cover inheriting from another 
dataclass. e.g., if I have dataclass with
attribute a, and subclass it to add attribute b, I'd want both in the repr.

Good point.  So auto-generate a new __repr__ if:

- one is not provided, and
- existing __repr__ is either:
  - object.__repr__, or
  - a previous dataclass __repr__

And if the auto default doesn't work for one's use-case, use the keyword 
parameter to specify what you want.

--
~Ethan~
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