I think the other replies are a bit confusing. unwrap causes a "panic" - panics in rust are similar to python exceptions, but it's not catchable. (there actuall

I think the other replies are a bit confusing. unwrap causes a "panic" - panics in rust are similar to python exceptions, but it's not catchable. (there actually is a way to catch panics because that's how the stacktrace printing is implemented, but you usually only use it if you're making a custom allocator or runtime or some other voodoo magic) So if you want your "exception" to be able to be handled by the caller, you have to indicate it otherwise, usually with enums.