Hi Irit, reading this subthread specifically, I just got a wild idea and I couldn‘t find any related information in the PEP:
Why not extending BaseException by __group__ among __cause__ and __context__? Would this reduce some of the added complexity and thus increase broader acceptance? Cheers, Sven > On 7. Apr 2021, at 20:26, Irit Katriel via Python-Dev <[email protected]> > wrote: > > > On Mon, Apr 5, 2021 at 2:59 PM Chris Jerdonek <[email protected]> > wrote: >> This point reminded me again of this issue in the tracker ("Problems with >> recursive automatic exception chaining" from 2013): >> https://bugs.python.org/issue18861 >> I'm not sure if it's exactly the same, but you can see that a couple of the >> later comments there talk about "exception trees" and other types of >> annotations. >> >> If that issue were addressed after ExceptionGroups were introduced, does >> that mean there would then be two types of exception-related trees layered >> over each other (e.g. groups of trees, trees of groups, etc)? It makes me >> wonder if there's a more general tree structure that could accommodate both >> use cases... >> >> --Chris > > Interesting, I commented on that issue - I think we may be able to solve it > without adding more trees. > > That said, we will have groups-of-trees/trees-of-groups. Already today, an > exception plus its chained __cause__s and __context__s is the root of a > binary tree of exceptions. The nodes of this tree represent the times that > the exceptions were caught. > > An exception group is a tree where the nodes represent the times when > exceptions were grouped together and raised. > > Irit > _______________________________________________ > 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/BZWELKDUAKCOXSH5KQRFGQJRQWJ2OHKW/ > Code of Conduct: http://python.org/psf/codeofconduct/
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