This doesn’t do much. Many of the stdlib functions will still raise exceptions. Also, just because you’re returning exception from a function doesn’t guarantee

This doesn’t do much. Many of the stdlib functions will still raise exceptions. Also, just because you’re returning exception from a function doesn’t guarantee that something else won’t raise an error. This isn’t an issue in Go/Rust since errors are treated as values in the core language and you’re forced to treat them so everywhere.