[Numpy-discussion] in the NA discussion, what can we agree on?

[Nathaniel Smith]

On Fri, Nov 4, 2011 at 7:43 PM, T J <tjhnson at gmail.com> wrote:
> On Fri, Nov 4, 2011 at 6:31 PM, Pauli Virtanen <pav at iki.fi> wrote:
>> An acid test for proposed rules: given two arrays `a` and `b`,
>>
>>         a = [1, 2, IGNORED(3), IGNORED(4)]
>>        b = [10, IGNORED(20), 30, IGNORED(40)]
[...]
> (A1)  Does  unmask(a+b) == unmask(b + a) ?
>
> Yes.  They both equal:
>
>    unmask([11, IGNORED(22), IGNORED(33), IGNORED(44)])
>      =
>    [11, 22, 33, 44]

Again, I really don't think you're going to be able to sell an API where
  [2] + [IGNORED(20)] == [IGNORED(22)]
I mean, it's not me you have to convince, it's Gary, Pierre, maybe
Benjamin, Lluís, etc. So I could be wrong. But you might want to
figure that out first before making plans based on this...

-- Nathaniel