[Python-Dev] Fwd: summing a bunch of numbers (or "whatevers")
Sun, 20 Apr 2003 22:51:54 -0400
On Sun, Apr 20, 2003, Barry Warsaw wrote:
> On Sun, 2003-04-20 at 20:58, Guido van Rossum wrote:
>> (A minority view that I can't quite shake off: since the name sum()
>> strongly suggests it's summing up numbers, sum() should be 0 and no
>> second argument is allowed. I find using sum() for a sequence of
>> strings a bit weird anyway, and will probably continue to write
>> "".join(S) for that case.)
> I agree. I'd rather see sum() constrain itself to numbers and sum()
> == 0. Then I don't see a need for second argument. "Summing" a list of
> strings doesn't make much sense to me.
Problem is, what *kind* of number? While ints are in general easily
promotable (especially int 0), I'd prefer to make things explicit.
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