MIT's intro computer science course switched several years ago from Scheme to Python, and thousands of universities all over the world made a similar switch in its wake.

This year’s Python Bee is declared a tie between Aleksejs ­Popovs ’20 and Yevhenii Diomidov ’18. The prize? Brain-teaser puzzles. This is MIT, after all.

This article rounds up some of the most valuable free data science courses offered by top institutions like Harvard, IBM, and ...