Small nitpick -- Python doesn't *require* immutable objects for dictionary keys,... | Hacker News

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		jmillikin on July 23, 2009 \| parent \| context \| favorite \| on: On "magic", once again (from James Bennet, Django ... Small nitpick -- Python doesn't require immutable objects for dictionary keys, it just won't work correctly in some cases with mutable keys.

ubernostrum on July 23, 2009 [–]

Well, technically the requirement is to implement both __hash__() and one of __eq__()/__cmp__(). But Python fudges this a bit in how it handles user-defined types.

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