Do you feel lost with all the libraries being developed in the Python ecosystem for Data Science? Have you heard of scikit-learn, theano, dask, xray, blaze, gensim, bokeh, pymc3, numba, jupyter..., but don't know where to start or what each library is for? Do you ask yourself, what is Data Science anyway? Deep learning vs Machine learning? Then, this talk is for you! We'll learn what Data Science is, as well as, existing libraries, functionality and applications in the ecosystem.