i hope that link could help you a little it is focus on probabilistic models (Markov models, Hidden Markov models, and Bayesian networks) for biological sequence analysis and systems biology.
also i suggest that you try
It is a platform for learning bioinformatics through problem solving you can start at the Python Village.
other interactive sites to learn Python
Have a look at the tutorials for Orange, a platform for machine learning analysis. Orange has both a graphical interface for generating machine learning workflows, and a python library to automatize the analysis. You can play with the graphical interface to learn the basics, and when you feel confortable, start using the python library directly.