I don't see any reason for Python to want to have JIT. There are already languages that are more suited for that kind of model, that have a long history of inc

I don't see any reason for Python to want to have JIT. There are already languages that are more suited for that kind of model, that have a long history of incremental improvement of JIT compiler design and implementation. Why is Python trying to compete in the field where it's almost certainly guaranteed to lose, and is almost certainly guaranteed to win nothing? Having an interpreter is great for some things. Especially, if you want to have bindings to third-party libraries, which is something Python does a lot. ---- My interpretation of the events is very different from yours. I believe that Python became swarmed by people who really, really want Java, but they feel that Java isn't cool for some superficial reason. And guided by the fear of crowd opinion, they won't just use Java and be content with it. Instead, they slowly make what used to be cool into a very bad clone of Java. And the reason why the big names you mentioned have anything to do with JIT development is because they want to ride this wave of insecure and self-doubting developers to score popularity points, and, eventually, to control the popular technology. Esp. in the case of Microsoft, it's a multi-prong offensive. They've installed their people in Python Foundation, various SIGs related to Python. They've made CPython builds and CI run on their infrastructure, preventing it from choosing free tools for their development process... Microsoft has a bad rep with people who used to like Python, and that's why they don't rebrand it into MS-Python, but really, if they wanted to, they could certainly do it.