[Python-ideas] Is it Python 3 yet?

[Terry Reedy]

On 1/27/2017 4:38 AM, Nathaniel Smith wrote:
> On Fri, Jan 27, 2017 at 1:32 AM, Stephan Houben <stephanh42-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> wrote:
>> Hi all,
>>
>> FWIW, I got the following statement from here:
>>
>> https://github.com/numpy/numpy/wiki/Numerical-software-on-Windows
>>
>> "Standard numpy and scipy binary releases on Windows use pre-compiled ATLAS
>> libraries and are 32-bit only because of the difficulty of compiling ATLAS
>> on 64-bit Windows. "
>>
>> Might want to double-check with the numpy folks; it would
>> be too bad if numpy wouldn't work on the preferred Windows Python.
>
> That's out of date

Would be nice if it were updated...

  -- official numpy releases have switched from ATLAS
> to OpenBLAS (which requires some horrible frankencompiler system, but
> it seems to work for now...), and there are 32- and 64-bit Windows
> wheels up on PyPI: https://pypi.python.org/pypi/numpy/

and from

NumPy, a fundamental package needed for scientific computing with Python.
Numpy+MKL is linked to the Intel® Math Kernel Library and includes 
required DLLs in the numpy.core directory.

     numpy‑1.11.3+mkl‑cp27‑cp27m‑win32.whl
     numpy‑1.11.3+mkl‑cp27‑cp27m‑win_amd64.whl
etc.

All the several packages that require numpy also come in both versions.

> 64-bit is definitely what I'd recommend as a default to someone
> wanting to use numpy, because when working with arrays it's too easy
> to hit the 32-bit address space limit.
>
> -n
>


-- 
Terry Jan Reedy