I've made a small Python library, designed for quick-and-easy prototyping of machine learning models. It's built on top of scikit-learn, to serialize and deserialize data from the forms you're likely to have, to the format used in scikit-learn.
https://github.com/madman-bob/Smart-Fruit
It's pretty bare-bones at the moment, but I thought I'd see if there was any interest before spending too much time on it.
Let me know what you think.