This is an outline of installing Science Software on a new Mac running Mountain Lion (10.8.x)

Install/upgrade OS Install XQuartz Install XCode 4 Install command line tools option from Xcode Preferences Downloads Panel Install gcc 4.8 and OS X 10.8 compatible gfortran from http://hpc.sourceforge.net (gcc-mlion.tar.gz). This installer installs both gcc and gfortran. Install pyfits from the StSci site Download the Scipy Superpack Installer for OSX 10.8 from http://fonnesbeck.github.com/ScipySuperpack/ sudo sh install_superpack.sh reboot test install python >>> import numpy >>> import scipy >>> import pyfits exit

-- DavidThompson - 12 Aug 2012