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> we have so much better dynamic languages with advanced JIT implementations

What are some of these better languages that you're referring to? (The usual dynamic language JITs I hear people praise are LuaJIT and Chez. And V8. And the JVM?)

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Smalltalk, Self, whose research lead to Hotspot and V8, Common Lisp.

And the usual, in Python everything is dynamic, well it is even more so in an image based live coding environment, where any break into the debugger, with code changes and resume execution can come back to a complete different world.

Additionally there are features like Smalltalk become: message, where two objects can change places everywhere they are used in the image, and current execution.

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I'd suggest F#, Clojure, Elixir, Scala, and TS, if that counts.
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Clojure could never really be a thing since it ignores the most important rule: fast startup. Because of this, and for no other reason, Clojure will always be an "also ran". It's not about competency of the people working on it. It's a solvable problem the community doesn't acknowledge exists, unless you press them on it, in which case they think "graal" and "babashka" is a valid response, and you're back to square 1.
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Even Ruby has JIT now
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True! But pjmlp was referring specifically to advanced JIT implementations, so I wondered which JITs he was referring to as advanced.
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In Ruby's case that would be RubyMotion, TruffleRubby and JRuby.

That trace back to Apple's efforts with MacRuby, or Sun's (for a while Netbeans even had Ruby support).

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If you go that route, GraalPy is there too, so the argument is not as strong as it seems.
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You missed my remark about PyPy feeling abandoned on the corner, well the same applies to GraalPy.

The Ruby JITs I mentioned are used in production.

While other dynamic language comunities embrace their JITs, in Python world, outside using it as a DSL for GPGPU JITs, it is pretty much let's just keep using CPythion with C and C++ extensions. Adding a JIT to CPython only became a thing after Facebook and Microsoft decided to push for its development.

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