No, I don&#x27;t have any significant Python2 codebase. I&#x27;m making my own judgement calls off the situation and facts as I see them. I wouldn&#x27;t build any project in Python3 today, because the prod-ready PyPy option isn&#x27;t there which adds CPU performance as a Python feature and removes the GIL.<p>Just because you agree with part of my post and arguments doesn&#x27;t mean you have to downvote. I had the GVR quote about semver to directly responded to and added to the original post, which is more than most comments.<p>Anytime I post something critical of Python3 it seems to be a big tug-o-war between those who want to shame me and those who want to show approval. I do it because someone has to say this stuff because I believe the silent majority sees it this way and I frankly find the vocal Python3 promoters to be the loudest of the bunch. There&#x27;s nothing wrong with other viewpoints unless you&#x27;re wrong. :)<p>By the way, Mark Lutz is well respected. He has been teaching Python for decades.