On Mar 20, 2015 1:49 AM, "Jerome Kieffer" <Jerome.Kieffer@esrf.fr> wrote:

On Fri, 20 Mar 2015 09:45:41 +0100 Per Tunedal <per.tunedal@operamail.com> wrote:

...

Hi, how do I install Numpy on Windows? I've tried the setup.py file, but get an error message:

setup.py install

gives: No module named msvccompiler in numpy.distutils; trying from distutils error: Unable to find vcvarsall.bat

get the ms compiler from http://aka.ms/vcpython27

Or more generally, you need to install the same version of MSVC or the "platform SDK" that was used to compile your python interpreter; this varies between python interpreters. The above link is appropriate for python 2.7 (and maybe some nearby versions too, I forget), but won't help if you're using e.g. python 3.4. If you want maximum speed you'll also need to acquire an optimized blas library from somewhere, which can be tricky. You might prefer to just download Christoph Gohlke's wheels (which are linked against the proprietary MKL, in case you care), or to use a scientific python distribution like anaconda or pythonxy. -n

Hi, thank you all! This turned out more complicated than I expected. I tried installing the indicated compiler VCForPython27.msi but that didn't change anything. On the other hand I don't want to install any special distribution of Python - I want to stick to the standard distribution to be sure my own code can run anywhere. I only need numpy to test the language guesser langid.py - as I need a guesser for sentences (a very small amount of text, making the language identification tricky). langid.py happens to be dependent on numpy. I will try some other language guesser instead. I might install Anaconda on a virtual machine to compare numpy with other solutions. Yours, Per Tunedal On Fri, Mar 20, 2015, at 15:59, Sebastian wrote:

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256

Hi,

as you ask how to install Numpy and not how to compile it, I guess you are looking for a so called distribution. A distribution bundles pre-compiled packages of Numpy and others together for simple usage of Numpy. Otherwise you have to compile it yourself with various dependencies. That's easy to accomplish. Have a look at

https://winpython.github.io/ https://code.google.com/p/pythonxy/ http://docs.continuum.io/anaconda/

regards, Sebastian

On 03/20/2015 09:45 AM, Per Tunedal wrote:

...

Hi, how do I install Numpy on Windows? I've tried the setup.py file, but get an error message:

setup.py install

gives: No module named msvccompiler in numpy.distutils; trying from distutils error: Unable to find vcvarsall.bat

Yours, Per Tunedal _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion

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