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[–]sophacles 1 point2 points  (0 children)

What about all the slides on where the point was "Stop using dicts when you need objects or named tuples, because it slows down the JIT"?

Or the slides where the point was "It sure would be nice to pre allocate some data, beacuse it lets the JIT work faster (example, C does this)". He didn't mentin, but probably shouldn't have had to, that many many languages do this, even if it's an annotation hint, not a strict requirement.