[Python-Dev] return type of __complex__

[Maciej Fijalkowski]

On Fri, Oct 19, 2012 at 5:56 PM, Benjamin Peterson <benjamin at python.org> wrote:
> 2012/10/19 Tres Seaver <tseaver at palladion.com>:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> On 10/19/2012 11:26 AM, Benjamin Peterson wrote:
>>> 2012/10/19 Antonio Cuni <anto.cuni at gmail.com>:
>>>> indeed, you are right. So I suppose that in pypy we could just relax
>>>> the check in cmath and be happy. Is there any chance that this will
>>>> be changed in 2.7 and/or 3.x?
>>>
>>> Certainly 3.x, but not 2.7.
>>
>> Why not 2.7?  It is a perfectly-backward-compatible change:  no
>> currenly-working code could possibly break if cmath's restriction was
>> relaxed.
>
>
> It's a new feature. Also, it's possible that someone is relying on it
> throwing for non-complex values.
>

Nick just said it's a bug that cmath type checks are too strict.