So you believe that people who would benefit learning from his book are not smart enough to make up an opinion of their own ? I have turn many people to his book to get them up to speed on python and then none of them had any issues moving over to python 3 . Your request makes a huge assumption that by people learning python 2 is a bad and horrible mistake . Mistake that only you and others can fix , since these programmers who would read the book are not smart enough to do . Censorship like this based on ones own opinion is dangers . I am using python since 2 . 2 and since then I noved over to 3 . 5 . Didn ' t need any knight on a white horse come to my rescue with censorship of a good book . But probably you have written a good python 3 book and that ' s why you call for such a drastic action . Can I have a link to your book ?