[Python-Dev] AutoNumber Enum (original) (raw)

Ethan Furman ethan at stoneleaf.us
Wed Jun 29 15:13:40 EDT 2016

On 06/29/2016 11:15 AM, Brett Cannon wrote:

On Wed, 29 Jun 2016 at 10:41 Ethan Furman wrote:

There is a several-month-old request to add aenum's [1] AutoNumberEnum to the stdlib [2].

The requester and two of the three developers of Enum are in favor (the third hasn't chimed in yet). This new addition would enable the following: from Enum import AutoNumberEnum class Color(AutoNumberEnum): # auto-number magic is on Red Green Blue Cyan # magic turns off when non-enum is defined Is it going to subclass Enum or IntEnum?

Enum.

Personally I would be quite happy to never have to specify a value for enums ever again, but only if they subclass Enum (since IntEnum is for compatibility with C stuff where a specific value is needed I don't think users need to mess that up by having the automatic numbering not work how they would expect).

If a user really wants that they can, of course, specify both AutoNuberEnum and IntEnum in the class header.

-- Ethan

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