descriptive statistics if you're not using NumPy or pandas. ● Statsmodels helps with tatistical modeling: Linear models, GLMs, among others. ● Scikits is a statistical and scientific computing package notably smoothing, optimization and machine learning. ● PyMC is for your Bayesian/MCMC/hierarchical modeling needs. ● PyMix for mixture models ● If speed becomes a problem, consider Theano. Theano is a Python