9.4 Scikit-learn
Scikit-learn is the easiest way to do classic machine learning in Python - train a model in a few lines.
Chapter 9: Tools and Technologies for AI
Scikit-learn (sklearn) has ready-made versions of most classic ML algorithms: regression, decision trees, random forests, clustering and more, plus tools to split data and measure accuracy.
Every model follows the same simple pattern: create it, fit it on training data, then predict on new data. Learn that pattern once and you can swap algorithms easily.
It's perfect for structured data and learning ML concepts. For big deep learning models you'd move to TensorFlow or PyTorch.
Key takeaways
sklearn = classic ML made easy
Pattern: create → fit → predict
Great for structured data and learning