Explore advanced Python programming techniques for data processing in this 28-minute video tutorial, part 3b of a 4-part series. Learn how to write smarter code using classes, focusing on creating a DatasetSelector and DatasetManager class. Dive into adding methods to classes, instantiating class objects, and incorporating Scikit-learn support. Follow along as the tutorial covers code review, class creation, method implementation, and handling sample size errors. Gain practical insights into efficient data processing and management using object-oriented programming principles in Python.