[capi-sig] Getting Numbers in C

[Hrvoje Niksic]

Campbell Barton <cbarton at metavr.com> writes:

>> If PyNumber_Float succeeds, but pyfloat turns out not to be float,
>> then the invalid argument exception is perfectly fine.
>
> Is this possible? - if its a number type I would have thaught it
> must be able to be converted to a float.

You're right, PyNumber_Float type-checks the return value of
tp_as_number->nb_float.  I thought I had checked previously and had
seen otherwise, but I must have confused it with something else.