This is the source code for PyNIO 1.4.1. To build PyNIO from source, you will need to install NetCDF 3 or 4, and HDF4. You can optionally include support for GRIB2, HDF-EOS2, HDF-EOS5, HDF5, and shapefiles, but you will need to build these external packages separately before you build PyNIO. You can find installation instructions at http://www.pyngl.ucar.edu/Download/build_pynio_from_src.shtml