[Python-Dev] return type of __complex__

[Devin Jeanpierre]

On Fri, Oct 19, 2012 at 10:13 AM, Nick Coghlan <ncoghlan at gmail.com> wrote:
> On Fri, Oct 19, 2012 at 11:08 PM, Antonio Cuni <anto.cuni at gmail.com> wrote:
>> Is that the real intended behavior?
>
> Given the way complex numbers interact with floats generally,
> returning a complex number with no imaginary component as a floating
> point value seems legitimate and the checks in cmath overly strict.
> Otherwise you would get redundancy like:
>
>     def __complex__(self):
>         return complex(value)
>
> or
>
>     def __complex__(self):
>         return value + 0j

No you wouldn't:

    def __float__(self):
        return value

-- Devin