I have Python 3.4.3 on windows 8.1. I downloaded numpy to my downloads folder, unzipped it to downloads/numpy-1.9.1 and copied it to python34/lib and renamed it to numpy
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1Why don't you use `pip`? http://stackoverflow.com/questions/4750806/how-to-install-pip-on-windows – rayryeng Mar 02 '15 at 03:50
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1Numpy binaries for windows are [here](http://www.lfd.uci.edu/~gohlke/pythonlibs/). – Marcin Mar 02 '15 at 04:08
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Try pip. It can be installed with
easy_install pip
if you don't have it already. Then, it's just a matter of
pip install numpy

Luke Taylor
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2Why would adding "sudo before it and type in your password" helped on windows 8.1? Even if, I doubt it will work as installing numpy requires lots of compiling. – Marcin Mar 02 '15 at 04:08
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Sorry. I didn't know that sudo won't work on windows. I'll edit the post. – Luke Taylor Mar 02 '15 at 04:55
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This almost certainly won't work. Installing numpy via pip requires a working toolchain in order to build the C extensions, which is far from trivial to set up on Windows. – ali_m Jan 03 '16 at 18:55