[Python-Dev] subclassing builtin data structures

[Georg Brandl]

On 02/14/2015 07:26 PM, Alexander Belopolsky wrote:

> In the case of int, there is a good reason for this behavior - bool.  In python,
> we want True + True == 2.  In numpy, where binary operations preserve
> subclasses, you have
> 
>>>> import numpy
>>>> numpy.bool_(1) + numpy.bool_(1)
> True

I don't think numpy.bool_ subclasses some class like numpy.int_.

Georg