Comment by rurban
3 months ago
I did a similar project, a typed perl. cperl. I could import most the modules, and did add types to some of the important modules. Eg testing was 2x faster. I needed typing patches for about 10% for most CPAN packages.
A type is a contract, not a hint!
> A type is a contract, not a hint!
In Python it is a hint.
Exactly. That was their worst mistake ever
I agree. I use Beartype to get runtime type checks, but it shouldn’t be necessary. Some support for type checking, whether at byte compile time or runtime, should land upstream.
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