Re:JITs are un-ergonomic
by The_Colonel on Sunday March 29, 2020 @08:51AM
(#22718574)
Python does not seem to be even trying to be competitive in performance though so it's less of an issue for them.
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They do, it's just not a priority. The PEP I linked (as well as most of the work of its author, Victor Stinner, in the last years) are motivated by JITing.
There's also the "frame evaluation API" PEP [1], whose purpose is to allow pluggable evaluators in CPython without forking the entire interpreter, like Unladen Swallow had to.