In Kotlin Notebooks, is there a way to catch excep...

# datascience

[Peter]

In Kotlin Notebooks, is there a way to catch exceptions before they are displayed in the output of a cell so they can be formatted a bit nicer?

[altavir]

A general try/catch should work. It should not be hard to add exception interceptor to cell evaluator though.

[Peter]

Where would I put the try/catch? Not in the before or after cell execution I assume.

[altavir]

Just wrap the problematic code with try/catch and use Notebook reflection to display proper information.

[altavir]

Let me check, maybe there is already something in notebook reflection api for that

[Peter]

Hmm, that would be very tricky if I understand correctly. If not an exception, what would that try/catch block return. Would my method suddenly return Any type as a consequence.

The primary use case is require, so IllegalArgument exceptions.

[altavir]

I do not see exception catching in current API, I think it makes sense to create an issue.

[Peter]

OK, I assume GitHub is the place (kotlin-jupyter)?

[altavir]

yep.

[Peter]

Will create an issue, thanks for the help!!!

[altavir]

It should be not hard to add. The scripting API provide exception handlers

[Peter]

Just created it, see https://github.com/Kotlin/kotlin-jupyter/issues/332

[altavir]

thanks