Found in 3 comments on Hacker News
clumsysmurf · 2016-08-24 · Original thread
A new & free introduction to Python from Jake VanderPlas can be gotten here:

http://www.oreilly.com/programming/free/a-whirlwind-tour-of-...

I was looking for a dense & concise guide to the language, but one of the most popular books "Learning Python 5e" by Lutz was too long @ 1600 pages.

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