bpo-40389: Improve repr of typing.Optional #19714
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Lib/typing.py
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| @@ -683,6 +683,9 @@ def copy_with(self, params): | |||
| return _GenericAlias(self.__origin__, params, name=self._name, inst=self._inst) | |||
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| def __repr__(self): | |||
| if (self.__origin__ == Union and len(self.__args__) == 2 | |||
| and self.__args__[1] is type(None)): | |||
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Hi @Endilll, thanks for opening a pull request for this. Notice that this does not work, when None is the first element:
>>> import typing
>>> typing.Union[None, int]
typing.Union[NoneType, int]
>>> typing.Union[None, int] == typing.Optional[int]
True
This change will also need some tests and an NEWS entry.
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Thank you for the feedback. Fixed.
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You can add a NEWS entry using https://blurb-it.herokuapp.com/ |
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Thanks for the PR and welcome @Endilll. FYI: assuming the idea is approved by the maintainers of |
Looks good, thanks! Also be sure to sign the CLA.
The Azure failure look like a flake, but I can't re-trigger it, and it is required for merging. @zooba do you know how to fix this?
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I've submitted CLA back on Saturday, and bot says that one business day is needed to update the records, so I suppose we just need to wait a bit. |
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Closing and reopening to re-run the Azure pipelines. |
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@gvanrossum: Please replace |
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Congratulations! |
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I want to thank everybody for such a welcoming attitude. |
https://bugs.python.org/issue40389