How to install gcc, python, and numpy to work with MacPorts

  port install gcc46 
  port select --set gcc mp-gcc46
  port install python27 
  port select --python python27
  port install py27-numpy

For elastic constanst, also need scipy:
  port install py27-scipy

And for plotting graphs, matplotlib
  port install py27-matplotlib

For NetCDF support:

  port install hdf5-18 netcdf +netcdf4
