[Python-Dev] PEP 435 -- Adding an Enum type to the Python standard library
Tres Seaver
tseaver at palladion.com
Thu Apr 25 21:02:07 CEST 2013
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On 04/25/2013 12:39 PM, Ethan Furman wrote:
> Animals is a class. Giving Animals a parameter (such as 1 or 'ant')
> should return the instance that matches.
Animals is *not* a class -- it just uses the class syntax as a convenient
way to set up the names used to construct the new type. (This subtlety
is why the metaclass hook is reputed to make peoples' brains explode).
> This is how classes work.
Not really. Normal classes, when called, give you a new instance: they
don't look up existing instances.
Tres.
- --
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Tres Seaver +1 540-429-0999 tseaver at palladion.com
Palladion Software "Excellence by Design" http://palladion.com
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