On Fri, Feb 26, 2021 at 11:43 PM Guido van Rossum <[email protected]> wrote:
> On Fri, Feb 26, 2021 at 3:18 PM Marco Sulla <[email protected]> > 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 >
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