On Fri, Jan 2, 2015 at 6:27 AM, Dave Angel <da...@davea.name> wrote:

Ben's description is very good.  But I think the main thing you're missing
> is that a tuple is created by the comma, not by parentheses.  In some
> contexts, parentheses need to be added to make it non-ambiguous, since
> comma is overloaded.


That's what I was baffled about.


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