It's an incredibly powerful and relatively simple little language - as a pick for a starting language to transition from HTML to full programming, it's a pretty good choice.
If you like books, and can find it for free or cheap, I very very highly recommend 'Automate The Boring Stuff with Python' as well. I think I got my copy in a give-away by the author a year or two ago and I've found it really useful.
Best of luck!