[Fredrik]
> >>> -1 * (1, 2, 3)
> ()
> >>> -(1, 2, 3)
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> TypeError: bad operand type for unary -
>
> We Really Need To Fix This!
What's broken? It's generally true that
n*s == s*n == empty_container_of_type_type(s)
whenever s is a sequence and n is an integer <= 0. The above is just
an instance of that. See footnote 2 in Library Ref section 2.3.6
Sequence Types.
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