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.

>>15
They are stored and processed differently, floating point numbers handling is much much more complex.  http://en.wikipedia.org/wiki/IEEE_754