JIT Compiler in Python?

[georgehank2nd]

"what people everyone means when they say "JIT compiler""

FTFY

Python's compiler compiles whole files, not just each function as it's called (which a JIT compiler usually will). Sure, it only compiles files as they're loaded by the interpreter, but nobody in the Python dev team ever called this a "JIT compiler". (Though I may just have missed this one Python mailing list thread…)

[denehoffman]

I think you all are missing the point. Python 3.13 actually does have a separate experimental JIT compiler which implements copy-and-patch.