Project: I'm implementing several machine learning algorithms in (near) base-python. I've almost finished the Naive Bayes classifier, then on to decision trees

Project: I'm implementing several machine learning algorithms in (near) base-python. I've almost finished the Naive Bayes classifier, then on to decision trees (and boosting and random forests come almost free from that), linear and logistic regression. I want to give a good depth of control and make it easy to share classifiers by writing dictionaries and exporting them as JSONs Problem: Validating inputs is tedious