Install matplotlib on Mac - SOLVED

[morlandi]

Basically, you have to rename some XQuartz include file during installation.
Here's what I did on my macbook, based on what suggested at http://blog.matt-swain.com/post/87112978897/fixing-matplotlib-png-output-on-mac-os-x

pip uninstall matplotlib
cd /usr/X11/include
sudo mv png.h _png.h
sudo mv pngconf.h _pngconf.h
sudo mv pnglibconf.h _pnglibconf.h
pip install matplotlib
sudo mv _png.h png.h
sudo mv _pngconf.h pngconf.h
sudo mv _pnglibconf.h pnglibconf.h

[drvinceknight]

I'm not sure I understand, I've been able to use matplotlib on Mac, installing directly with pip install matplotlib.

[morlandi]

I was not so lucky ;) so this might depend on what's' installed on your machine.
Could be useful for someone else