What's the common practice for enums in Python? [duplicate]

Question

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How can I represent an 'enum' in Python?

What's the common practice for enums in Python? I.e. how are they replicated in Python?

public enum Materials {     Shaded,     Shiny,     Transparent,     Matte } 

Answer 1

class Materials:     Shaded, Shiny, Transparent, Matte = range(4)  >>> print Materials.Matte 3 

Answer 2

I've seen this pattern several times:

>>> class Enumeration(object):         def __init__(self, names):  # or *names, with no .split()             for number, name in enumerate(names.split()):                 setattr(self, name, number)  >>> foo = Enumeration("bar baz quux") >>> foo.quux 2 

You can also just use class members, though you'll have to supply your own numbering:

>>> class Foo(object):         bar  = 0         baz  = 1         quux = 2  >>> Foo.quux 2 

If you're looking for something more robust (sparse values, enum-specific exception, etc.), try this recipe.