funcFit:    A convenient fitting package providing support
            for minimization and MCMC sampling.

modelSuite: A Set of astrophysical models (e.g., transit
            light-curve modeling), which can be used
            stand-alone or with funcFit.

AstroLib:   A set of useful routines including a number
            of ports from IDL's astrolib.

Constants:  The package provides a number of often-needed
            constants.

Timing:     Provides algorithms for timing analysis such as
            the Lomb-Scargle and the Generalized Lomb-Scargle
            periodogram

pyaGUI:     A collection of GUI tools for interactive work.