[Distutils] pip on windows experience

[Noah Kantrowitz]

On Jan 23, 2014, at 4:17 PM, Oscar Benjamin <oscar.j.benjamin at gmail.com> wrote:

> On 23 January 2014 23:58, Nick Coghlan <ncoghlan at gmail.com> wrote:
>> 
>> I really think that's our best near term workaround - still room for
>> improvement, but " pip install numpy assumes SSE2" is a much better
>> situation than "pip install numpy doesn't work on Windows".
> 
> Is it? Do you have any idea what proportion of (the relevant) people
> would be using Windows with hardware that doesn't support SSE2? I feel
> confident that it's less than 10% but I don't know how to justify a
> tighter bound than that.
> 
> You need to bear in mind that people currently have a variety of ways
> to install numpy on Windows that do work already without limitations
> on CPU instruction set. Most numpy users will not get any immediate
> benefit from the fact that "it works using pip" rather than "it works
> using the .exe installer" (or any of a number of other options). It's
> the unfortunate end users and the numpy folks who would have to pick
> up the pieces if/when the SSE2 assumption fails.
> 

This all sounds very similar to the issues with Linux binary wheels and varying system ABIs. Should probably keep in mind for any solution that might apply to both.

--Noah


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