🤖 New build scheduled with the buildbot fleet by @iritkatriel for commit 1555087 🤖

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Yeah, I like this!

How about error handling when printing the traceback? Should we print something like "cannot print notes: not a sequence", and similarly if a note is not a str?

How about error handling when printing the traceback? Should we print something like "cannot print notes: not a sequence", and similarly if a note is not a str?

How about printing repr(self.__notes__) if it's not a list, and str(note) if an individual note isn't a string? The former makes it clear what it is, while the latter provides a feature that Barry has been asking for...

If either of those fails, either raise an exception from print_exception() or swallow the error and print a simple message. It probably doesn't really matter, repr() or str() failing should be extremely obscure.

How about error handling when printing the traceback? Should we print something like "cannot print notes: not a sequence", and similarly if a note is not a str?

How about printing repr(self.__notes__) if it's not a list, and str(note) if an individual note isn't a string? The former makes it clear what it is, while the latter provides a feature that Barry has been asking for...

If either of those fails, either raise an exception from print_exception() or swallow the error and print a simple message. It probably doesn't really matter, repr() or str() failing should be extremely obscure.

I'll do something like what we do for str(exc).

Heya - I think we should have an explicit test that if you .split() an ExceptionGroup which already has __notes__, it's shallow-copied rather than simply assigned to the new instances. It'd be pretty confusing to call .add_note() on one and have it added to other instances too!

Heya - I think we should have an explicit test that if you .split() an ExceptionGroup which already has __notes__, it's shallow-copied rather than simply assigned to the new instances. It'd be pretty confusing to call .add_note() on one and have it added to other instances too!

That's a good point. I added the test and fixed the code to copy the notes in split(), so long as they are a sequence (producing a list). If people assign arbitrary objects to notes I don't know how to copy them.
Is there a "copy protocol" we can demand?

🤖 New build scheduled with the buildbot fleet by @iritkatriel for commit 95be670 🤖

If you want to schedule another build, you need to add the "🔨 test-with-buildbots" label again.

Sorry about the noise (I messed it up multitasking). Getting there now.

🤖 New build scheduled with the buildbot fleet by @iritkatriel for commit 602b4c4 🤖

If you want to schedule another build, you need to add the "🔨 test-with-buildbots" label again.

The buildbots are happy with this. Let me know if you would like to re-review, otherwise I'll merge it tomorrow or so.