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
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