Python errors as values (www.inngest.com)

submitted 2 years ago by [email protected] to c/[email protected]

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[-] [email protected] 1 points 2 years ago

If only python had a throws keyword like in Java. They got that right at least.

[-] [email protected] 3 points 2 years ago* (last edited 2 years ago)

raise and raise ... from ?

[-] [email protected] 3 points 2 years ago

I think they meant the registration of what Exceptions a function can possibly throw.

@eager_eagle @onlinepersona

[-] [email protected] 1 points 2 years ago

ah yes - that's useful

[-] [email protected] 1 points 2 years ago* (last edited 2 years ago)

I disagree, I hate that keyword. Exceptions should be... exceptional, and regular errors should be data. I only want to see exception blocks at top levels for logging and whatnot, everything else should be destructured monads in a match block or similar.

Forgetting a function can throw exceptions is an honest mistake, ignoring errors when you've destructured a return value to get the data is a choice. The former is hard to catch, the latter is plainly obvious in a code review.