> Is it really that hard to come up with something like that for Python?
Nope, we just need a large company willing to spend tons of money funding the effort.
PyPy has made incredible strides in this area, especially for long running processes where the JIT has time to warm up. But they need a lot more funding if people ever want Python to get fast.
I'm very impressed that PyPy got their JIT working. But it took 10 years from initial funding by the European Union. It's a hard problem. They had to come up with some new, elegant solutions to make it work. See "https://pypy.readthedocs.org/en/release-2.3.x/jit/pyjitpl5.h...
JavaScript is a bit easier because it doesn't have concurrency. In Python, you can change a method of an object while an instance of that object is being executed in another thread. So you have to worry about invalidating code currently being executed asynchronously.
Nope, we just need a large company willing to spend tons of money funding the effort.
PyPy has made incredible strides in this area, especially for long running processes where the JIT has time to warm up. But they need a lot more funding if people ever want Python to get fast.