[Distutils] pip on windows experience

Paul Moore p.f.moore at gmail.com
Fri Jan 24 23:40:11 CET 2014

On 24 January 2014 22:21, Chris Barker <chris.barker at noaa.gov> wrote:
> well, numpy _should_ build out of the box with nothing special if you are
> set up to build regular extensions. I understand that a lto f Windows users
> are not set up to build extensions at all, but tehy ar presumably used to
> getting "compiler not found" errors (or whatever the message is). But you
> won't get an optimized numpy and much of the rest of the "stack" is harder
> to build: scipy, matplotlib.

Seriously? If I have MSVC 2010 installed, pip install numpy will
correctly build numpy from source? It's a *long* time since I tried
this, but I really thought building numpy was harder than that.

A quick test later:
No BLAS/ATLAS/LAPACK causes a string of warnings, And ignoring the
rest of the error stack (which I'm frankly not interested in investing
the time to diagnose and fix) I get "RuntimeError: Broken toolchain:
cannot link a simple C program". Which is utter rubbish - I routinely
build extensions with this installation.

So no, numpy does not build out of the box. Ah well.

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