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A comment on Python 3.7: Introducing Data Classes. Parent comment

Re:Python 3.7: Introducing Data Classes by dagw on Wednesday April 18, 2018 @05:13PM (#16871242)
Using an object as a dictionary key. What's the use for that?

I've used tuples has dict keys several times, so I don't see why I conceivably wouldn't use a Data Class containing the same data as a dict key.

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