Docs: Update TypedDict import statements#16958
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JelleZijlstra merged 4 commits intopython:masterfrom Feb 29, 2024
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Since Python 3.8, `TypedDict` has been available from the `typing` module. As Python 3.8+ is needed to use mypy (https://github.com/python/mypy/blob/master/setup.py#L12), then it's best for the docs to reflect Python 3.8+ usage. For previous versions, there's already a disclaimer on the page that explains that `typing_extensions` must be used: https://github.com/python/mypy/blob/master/docs/source/typed_dict.rst?plain=1#L102-L110
AlexWaygood
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Feb 28, 2024
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Thanks! Looks like we have a bunch of from typing_extensions import Literal and from typing_extensions import Protocol instances scattered across the docs as well -- want to update those at the same time?
AlexWaygood
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Feb 29, 2024
docs/source/error_code_list2.rst
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| # Use "mypy --enable-error-code unimported-reveal" | ||
| from typing import reveal_type # or `typing_extensions` | ||
| from typing import reveal_type # "from typing_extensions" in Python 3.10 and earlier |
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I think this one can be left as-is: the existing message is more concise, and isn't incorrect (you can still import it from typing_extensions on 3.11+)
docs/source/error_code_list.rst
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| example.py:3: error: "bool" is invalid as return type for "__exit__" that always returns False | ||
| example.py:3: note: Use "typing_extensions.Literal[False]" as the return type or change it to | ||
| example.py:3: note: Use "typing.Literal[False]" as the return type or change it to |
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We should update the error message mypy emits here, but until we do so, we shouldn't change the docs here: this copies exactly the error message mypy emits on the above snippet https://mypy-play.net/?mypy=latest&python=3.12&gist=aab6f1cc25003dd1573cb3d8b8df2396
AlexWaygood
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Feb 29, 2024
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
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Since Python 3.8,
TypedDicthas been available from thetypingmodule.As Python 3.8+ is needed to use mypy (https://github.com/python/mypy/blob/master/setup.py#L12), then it's best for the docs to reflect Python 3.8+ usage.
For previous versions, there's already a disclaimer on the page that explains that
typing_extensionsmust be used: https://github.com/python/mypy/blob/master/docs/source/typed_dict.rst?plain=1#L102-L110