Would it be possible to drop the requirement that multiple exception types are parenthesized? Is it only ambiguous with the old Python2 syntax? On Sat, 8 May 2021, 20:15 Guido van Rossum, <guido@python.org> wrote:
I propose “exception tuple”, since syntactically and semantically it must be a tuple. (Same as for isinstance() and issubclass().)
On Sat, May 8, 2021 at 05:52 Thomas Grainger <tagrain@gmail.com> wrote:
That's this bit:
``` except (A, B): ^^^^^^ ```
bpo-43149 currently calls it an "exception group", but that conflicts with PEP 654 -- Exception Groups and except*
```
try: ... pass ... except A, B: ... pass Traceback (most recent call last): SyntaxError: exception group must be parenthesized
some alternatives: exception classinfo must be parenthesized (classinfo so named from the parameter to issubclass) exception sequence must be parenthesized see also: - https://github.com/python/cpython/pull/24467#discussion_r628756347 - https://www.python.org/dev/peps/pep-0654/ _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-leave@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/HSN6ESRB4BD6IUIPKLMNP4TPBQPWHBFK/ Code of Conduct: http://python.org/psf/codeofconduct/
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