Python 3.13's new JIT and no-GIL modes

Python 3.13 provides early access to some groundbreaking new features in CPython, the default Python interpreter. A new JIT can enable speedups in "hot spots" in Python code, by selectively replacing generic instructions with specialized versions and by using a new second-stage bytecode - without having to rewrite any existing Python code. And the new "free-threaded", or "no-GIL" build, lets Python threads run with true parallelism.
However, none of these features are enabled by default yet. To use them, you need to build a custom edition of the Python interpreter. In this video, we've done just that, and we show some examples of where both of these new features add real value to Python.
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[@felixfourcolor]

I believe Fedora 41 will ship Python with the JIT, but disabled by default (can be turned on via command line argument). I don't think any distro will ship free-threading though.

[@teawithoutdonuts31]

The question I eant answered is how will this affect ASGI and WSGI web frameworks.

[@sdmagic]

Very nicely done.

[@alexandermorgan5869]

Great video! Are there any instructions on how to build these two different versions of python 3.13?

[@OmarHashimOAD]

I enjoy your content; keep up the great work!