> Thank you for turning to what happens with 'except ValueError' when an
> ExceptionGroup[ValueError] is raised, this is important.
> I'm not sure it's safe to assume that it is necessarily a > programming
>error, and that the interpreter can essentially break the program in this
> case.
I'm betting it means a ValueError was raised, but then something (probably an
asynchronous framework) aggregated it. I won't swear you would never want to
distinguish the two cases, or to distinguish them both from
ExceptionGroup[ExceptionGroup[ExceptionGroup[ValueError]]], but ... normally
you wouldn't.
> Is this not allowed?
>try:
> try:
> obj.func() # function that raises ExceptionGroups
> except AttributeError:
> logger.info("obj doesn't have a func")
>except *(AttributeError, SyntaxError):
> logger.info("func had some problems")
Allowed, but probably in error ... no AttributeError will get through to the
except * unless it happened inside the except AttributeError handler. Did you
mean:
try:
try:
obj.func # function that raises ExceptionGroups
except AttributeError:
logger.info("obj doesn't have a func")
obj.func()
except *(AttributeError, SyntaxError):
logger.info("func had some problems")
I see this as an argument that the except/except* split is tricky, but I don't
think it says anything about whether except* clauses should be able to see into
nested ExceptionGroups ... nor am I at all confident that I understood your
intent.
-jJ
_______________________________________________
Python-Dev mailing list -- [email protected]
To unsubscribe send an email to [email protected]
https://mail.python.org/mailman3/lists/python-dev.python.org/
Message archived at
https://mail.python.org/archives/list/[email protected]/message/XOAB7IJNXOHRL3HRVZ5VZON6MVHOPXB3/
Code of Conduct: http://python.org/psf/codeofconduct/
