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Data structure for complexe enumeration.

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Data structure for storing complex enumeration

>>> class Color(Catalog):
>>>     _attrs = 'value', 'label', 'other'
>>>     red = 1, 'Red', 'stuff'
>>>     blue = 2, 'Blue', 'things'

Access values as Attributes

>>> Color.red.value
1
>>> Color.red.label
'Red'

Call to look up members by attribute value

>>> Color('Blue', 'label')
Color.blue

Calling without attribute specified assumes first attribute defined in _attrs

>>> Color(1)
Color.red

_attrs defaults to ['value'].

Member class can be replaced by extending CatalogMember and defining on Catalog with the _member_class attribute

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