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Date: Fri, 29 May 2015 14:44:07 -0700
From: Ethan Furman <ethan@stoneleaf.us>
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Subject: Re: What is considered an "advanced" topic in Python?
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Xref: csiph.com comp.lang.python:91505

On 05/29/2015 02:28 PM, Jason Swails wrote:

> ​[...] e.g., if the person creating an Enum subclass didn't bother to correctly
> implement [...] __iter__, and __len__ for their subclass

For __iter__ and __len__ to work on the Enum /class/ it must be defined in the metaclass.

--
~Ethan~