Today I tried installing these modules under Cygwin with pip. The whole thing took a few hours to figure out thanks to crappy bundled packages that pip fetches and lack of consistency between helps available online.
To install pip, you need to have
python3-setuptoolsinstalled. Then using the
easy_install3 pip command you can install pip.
After that, you need to have
libopenblas installed via Cygwin’s package manager (SciPy depends on them). You also need to have
pkg-config and a bunch of other stuff (that pip installer complains about) installed. The dependencies that pip complains about are straightforward (just mark them for installation in Cygwin’s installer).
pip -v install numpy and
pip -v install matplotlib should get you those packages without much headache. The most important thing is that as of SciPy v 0.16.1, there seems to be some error in SciPy’s C files that prevents compilation and installation. I was able to get it to install using
pip -v install scipy==0.15.1.
After installation, you may notice that you can’t plot stuff using mathplotlib’s
pyplot module. To fix that, you need to have
XWinServer running and should configure matplotlib to use
tkagg backend. To do this, locate the file
matplotlibrc and change
backend : agg to
backend : tkagg. The plots should show now!