Suggest typing.Literal for exit-return error messages #18541
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Diff from mypy_primer, showing the effect of this PR on open source code: prefect (https://github.com/PrefectHQ/prefect)
- src/prefect/_internal/concurrency/cancellation.py:267: note: Use "typing_extensions.Literal[False]" as the return type or change it to "None"
+ src/prefect/_internal/concurrency/cancellation.py:267: note: Use "typing.Literal[False]" as the return type or change it to "None"
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x612skm
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Feb 24, 2025
`typing.Literal` was added to the stdlib in Python 3.8.
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typing.Literalwas added to the stdlib in Python 3.8.