Just import everything from the __future__ package at the top of each file when writing code. If you do that, any project you create won't take more than a day

Just import everything from the __future__ package at the top of each file when writing code. If you do that, any project you create won't take more than a day or two to upgrade to Python 3, so even though it's confusing you don't really need to think much about it until you're ready to upgrade. http://python-future.org/imports.html http://python-future.org/imports.html Basically don't worry about the MOOCs being in Python 2, the differences are trivial and you don't really need to understand them to be going down the right path.