python books

http://greenteapress.com/thinkpython/thinkpython.html

Is this book for python 3 or 2? There are a few footnotes that talk about differences between the two, but I can't figure out which one of them the actual code examples in the book are "compatible" with.

yeah, i don't know shit about programming.

>>6
Interesting, I'll give the tutorial a try. If I fail miserably at it, i'll go with the book. Speaking of which, I haven't had my original question answered, but I'm going to guess it's for python 2, based on >>5.

>>8
I still don't understand why things like 0.1 + 0.2 would be a problem for computers. If working with integers is not a problem, why can't it just calculate 1 + 2 and then move the decimal point one place to the left before presenting the output to the user?