
Voidspace The website , technical blog and projects of Michael Foord Home Blog Book IronPython Python Projects Python Articles Contact Python Programming , news on the Voidspace Python Projects and all things . techie Front page All By Date All By Category RSS Feed 1225 matplotlib and numpy for Python 2.7 on Mac OS X Lion Unfortunately , due to an API change , the latest released version of matplotlib is incompatible with libpng 1.5 Take a wild guess as to which version comes with Mac OS X Lion . Fortunately this is fixed in the matplotlib repository . Here's how I got matplotlib working on Mac OS X Lion with Python 2.7 but these instructions should work fine for other versions of Python too First matplotlib requires numpy The latest version is 1.6.1, from here The precompiled Mac OS X