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PEP-654: state that exceptions in a group are handled independently o… #1903

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gvanrossum merged 1 commit into from
Mar 31, 2021
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PEP-654: state that exceptions in a group are handled independently o… #1903

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3 changes: 2 additions & 1 deletion pep-0654.rst
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Expand Up @@ -547,7 +547,8 @@ by following ``except*`` clauses. In other words, a single exception group can
cause several ``except*`` clauses to execute, but each such clause executes at
most once (for all matching exceptions from the group) and each exception is
either handled by exactly one clause (the first one that matches its type)
or is reraised at the end.
or is reraised at the end. The manner in which each exception is handled by
a ``try-except*`` block is independent of any other exceptions in the group.

For example, suppose that the body of the ``try`` block above raises
``eg = ExceptionGroup('msg', [FooError(1), FooError(2), BazError()])``.
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