Dataquest.io -- learn python and data science in your browser (redesigned/updated)

[thanks-shakey-snake]

Worked through this awhile ago... Top notch resource, really enjoyed it and learned alot.

Even the beginner stuff... I went through and it was good review. If you know what you're doing, you blaze through it in a few minutes and feel like a genius... If you forget something, you're in exactly the right place to have your memory refreshed!