On Fri, Feb 26, 2021 at 11:43 PM Guido van Rossum <guido@python.org> wrote:
On Fri, Feb 26, 2021 at 3:18 PM Marco Sulla <Marco.Sulla.Python@gmail.com> wrote:
Excuse me if I post here. Maybe is a stupid question: why, instead of introducing except*, Python can't extend the functionality of except, so it can do what except* would do?
Good question. Here's an example: ``` try: . . . except OSError as err: if err.errno != ENOENT: raise . . . ``` If this would catch ExceptionGroup(OSError), the `err` variable would be an ExceptionGroup instance, which does not have an `errno` attribute.
(Irit: Does the PEP answer this question? I couldn't quickly find it in the rejected ideas. I think it's a reasonable question and we should answer it, either in the Rationale or in Rejected Ideas.)
Added here: https://github.com/python/peps/pull/1846