The nice thing about Protocols is that they are so easy to define, you can just define them yourself. There's no need to have a "standard" protocol in typing.py for ever single dunder method in existence. PS. There's no need for `__slots__ = ()` assuming you're not going to inherit directly from it (there's really no point). On Tue, Oct 6, 2020 at 10:29 AM aleksiy123 <aleksiy123@gmail.com> wrote:
Currently there are a few Protocols https://docs.python.org/3/library/typing.html#protocols defined in the typing module. One that I recently felt like was missing was a typing annotation for classes with a __str__() method defined. Seems like a fairly straightforward implementation.
@runtime_checkable class SupportsString(Protocol): """An ABC with one abstract method __str__.""" __slots__ = () @abstractmethod def __str__(self) -> str: pass Perhaps there is another way to do this that I am missing? _______________________________________________ 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/C66MLT... Code of Conduct: http://python.org/psf/codeofconduct/
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