OT: why do people use python when it is slow?

[Ola Fosheim Grøstad via Digitalmars-d-learn]

On Thursday, 15 October 2015 at 07:57:51 UTC, Russel Winder wrote:
> lot better than it could be. From small experiments D is (and 
> also Chapel is even more) hugely faster than Python/NumPy at 
> things Python people think NumPy is brilliant for. Expectations

Have you had a chance to look at PyOpenCL and PYCUDA?