I see you&#x27;ve been downvoted. Interesting, you said that you haven&#x27;t found a reason to switch and someone looked at it and thought &quot;How dare you not find a reason to switch, here let&#x27;s teach you a lesson&quot;.<p>But in large I agree. 3 hasn&#x27;t provided enought of a carrot and 2 hasn&#x27;t been enough of a pain for many people to want to switch. Especially when it comes to existing stable code bases. For new development, yes, many can and should pick Python 3. But if say Python 3 brought even a 20% speed improvement overwall, the move would have been a lot faster.<p>I find people are ok with accepting some breakages due to re-writes if either existing stuff is very broken, or new stuff is so much better.