Classes as namespaces?
steve at holdenweb.com
Sat Mar 27 13:22:17 CET 2010
J. Clifford Dyer wrote:
> On Fri, Mar 26, 2010 at 02:49:02PM +0000, kj wrote regarding Classes
> as namespaces?:
>> What's the word on using "classes as namespaces"? E.g.
>> class _cfg(object): spam = 1 jambon = 3 huevos = 2
>> breakfast = (_cfg.spam, _cfg.jambon, _cfg.huevos)
> I also would not assign integers to spam, jambon, or huevos. Instead
> I would assign each a bare object(). That way you won't get
> unexpected interactions with other constants outside the class. An
> object() is equal only to itself.
It also has the advantage (?) that you can use "is" (identity)
comparisons rather than testing for equality, though this is only a
readability issue, I suspect.
Steve Holden +1 571 484 6266 +1 800 494 3119
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