CPython 3.13 went further with an experimental copy-and-patch JIT compiler -- a lightweight JIT that stitches together pre-compiled machine code templates instead of generating code from scratch. It's not a full optimizing JIT like V8's TurboFan or a tracing JIT like PyPy's;
Good news. Python 3.15 adapts Pypy tracing approach to JIT and there are real performance gains now:
https://github.com/python/cpython/issues/139109
https://doesjitgobrrr.com/?goals=5,10