That's proposed in PEP 645 (https://www.python.org/dev/peps/pep-0645/). Personally I think it's not necessary, we should just write MyType | None. (Yes, this is directly from TypeScript.) On Sun, Aug 15, 2021 at 6:10 AM Will Bradley <derivativedude123@gmail.com> wrote:
Hi all,
As of 3.10 (PEP 604) we've gotten syntactical support for a common type operation— namely, typing.Union[Type1, Type2] can now be written as Type1 | Type2 . This is achieved via overriding the __or__ method.
I propose the ? symbol as sugar for typing.Optional, so that typing.Optional[MyType] can be written as MyType? . (Yes, this is lifted directly from C#.)
Thoughts? Is it unnecessary now that we can write MyType | None as of 3.10?
Thanks, Will _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-leave@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/VYZOMT... Code of Conduct: http://python.org/psf/codeofconduct/
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