That’s nice but the “entire chapter” you mention is three pages, divided into three platforms, so less than a page per platform including screenshots, which means really about one or two short paragraphs per platform. I really don’t want to take away from what you’ve done, but to say there is an “entire” chapter is not really getting the point of the comment you replied to. Installation may indeed be coverable in so few words, but I think what is missing is coverage of what it takes to go back and forth between different versions (using ‘python’ versus ‘python3’ on the command line doesn’t begin to cover it), although personally I will be happy when we no longer have to do that.
I am glad to see you are basing things on Python 3.
Oh, you're right, I've edited my answer because "entire chapter" seems a very big thing considering the size of the document, and it probably makes me be seen as quite arrogant. To my defense, I'm not a native English speaker and it's 2:30 am here, so the quality of my answers are not the best at this moment.. :)
I am glad to see you are basing things on Python 3.