This post will show you how to open CSV files in Python using the CSV module. You'll also learn another method + how to write CSV files!

This post explains what a Python module is and how to use it to drastically extend the capabiltiies of your code. Plus: how to make your own!

Pre Python 3.9, we could write something like this to open two (or more) file I/O streams: That first line is pretty long, too long in fact.