I couldn’t find anything on the web that attempted to teach Python to readers who already knew JavaScript, so I thought I’d give it a shot, since a number of my friends at Mozilla don’t know much about Python but know JavaScript incredibly well. The languages actually aren’t that dissimilar—in fact, some of JavaScript’s latest features have been borrowed directly from Python.
Aside from focusing on differences and similarities between the two languages, I also try to explain Python’s design philosophy a bit, to give readers a context for why things work the way they do.
You can read the tutorial here.