Python AI Development & Algorithmic Engineering | Netalith

Scikit-learn Tutorial: Train, Evaluate, and Save Your First Machine Learning Model in Python

An end-to-end scikit-learn tutorial showing how to preprocess data with pipelines, train and tune classification models, evaluate with ROC AUC, prevent leakage, and save/load a model with joblib for inference.

Long Nguyen

2026-03-30 • 3 min read