Andrew Barnert wrote: > What you’re describing is just enum.Enum, minus half its features, but a > sequence > instead of a mapping. > I’m not sure why you’d ever want this,
Actually, it's a bit different. This is for building a collection of value/label pairs where the values are as likely to be strings as numbers, and its sequence behavior is as a list of value/label pairs (e.g. for use as the choices for a Django field). > but if you did, you could just subclass EnumMeta > and add/override the sequence methods. > At any rate, almost all of that seems irrelevant to your issue. Making it act > like both > a singleton with members and like a sequence is already trivial to do today. > What you’re looking for is a way to auto-assign attributes on lookup during > class > definition. Which is an idea that was actually brought up for enums, and > specifically > rejected in PEP 435, but there’s a proof of concept implementation of it > anyway if you > want it. OK. I'm not at all surprised that was rejected. In that case, perhaps the answer to my proposal is — nobody should be doing this kind of thing, so there's no reason to work around the limitations of trying to do this kind of thing. :) > It’s also worth looking at the implementation of the various alternative enum > implementations on PyPI (both the ones that pre-existed 3.4, and the ones > that build on > it). Yes. I'll take a look. My code and this DSL was probably never going to be used in production anyway because it primarily a learning exercise. Possibly actually using it is a distant second priority. Reading those alternative implementations is, of course, also a good learning exercise. :) _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/PHRJY7IF3FP36JBPN2NPS23AZZ5J3VAL/ Code of Conduct: http://python.org/psf/codeofconduct/
