I\'m a newbie to making/plotting on maps with python, been trying to follow this blogpost to generate a world map (http://sciblogs.co.nz/seeing-data/2011/08/12/plotting-geog
I know it is a pretty old question but, as an alternative to https://stackoverflow.com/a/12683010/597743 you could use MacPorts to install the geos library:
port install geos
And the installation steps for MacPorts are described here: https://www.macports.org/install.php