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Her boss emailed: "Latency down 80%. Costs down 60%. What did you change?"
divide("10", 2) # TypeError at runtime, not just in linter divide(10, 0) # Still raises ZeroDivisionError, but type is checked first
But for one glorious week, Python devs everywhere felt like wizards. As midnight approached, the final bombshell dropped: PEP 748 – Runtime-Validated Types .
She typed:
It was December 3rd. Release day.