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Removed outdated mypy exceptions in CONTRIBUTING (#8668)

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Closes #8667
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Samuel T
2022-09-02 03:09:35 -04:00
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parent bf3b1f0c4d
commit bcb8384e2f
1 changed files with 1 additions and 2 deletions
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CONTRIBUTING.md
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@@ -427,8 +427,7 @@ checker, and leave out unnecessary detail:
Some further tips for good type hints:
* use built-in generics (`list`, `dict`, `tuple`, `set`), instead
of importing them from `typing`, **except** in type aliases, in base classes, and for
arbitrary length tuples (`Tuple[int, ...]`);
of importing them from `typing`.
* use `X | Y` instead of `Union[X, Y]` and `X | None`, instead of
`Optional[X]`, **except** when it is not possible due to mypy bugs (type aliases and base classes);
* in Python 3 stubs, import collections (`Mapping`, `Iterable`, etc.)