Python and Java are two that come to mind. It is idiomatic in both to return null/None on error, but it is not idiomatic to use a result type. Hell, Python even

Python and Java are two that come to mind. It is idiomatic in both to return null/None on error, but it is not idiomatic to use a result type. Hell, Python even uses exceptions to terminate iterators. This isn't to say the idioms are never broken or that they shouldn't be broken. I agree that if you are doing something like parsing a string to an integer, that should probably be a result type and not just throw an exception.