There is a lot of useful things that can be done from a web browser...
"Chromebook" name here is used as a symbol of web-only apps.
Welcome to Chromebook Data Science
"Chromebook Data Science (CBDS) is a free online educational to help anyone who can read, write, and use a computer to move into data science, the number one rated job. It is a sequence of 12 MOOCs offered by faculty members in the Johns Hopkins Department of Biostatistics, Bloomberg School of Public Health."
R, not Python