Redefined dataclasses.KW_ONLY (#5826)

Redefined dataclasses.KW_ONLY so it's a type alias rather than a class instance. Class instances are illegal to use within a type annotation.
python · Aug 1, 2021 · ea4be02 · ea4be02
1 parent e1b9ab3
commit ea4be02
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/stdlib/dataclasses.pyi b/stdlib/dataclasses.pyi
@@ -13,8 +13,7 @@ class _MISSING_TYPE: ...
 MISSING: _MISSING_TYPE
 
 if sys.version_info >= (3, 10):
-    class _KW_ONLY_TYPE: ...
-    KW_ONLY: _KW_ONLY_TYPE
+    class KW_ONLY: ...
 
 @overload
 def asdict(obj: Any) -> Dict[str, Any]: ...

diff --git a/tests/stubtest_allowlists/py310.txt b/tests/stubtest_allowlists/py310.txt
@@ -37,6 +37,7 @@ collections.abc.KeysView.__reversed__
 collections.abc.ValuesView.__reversed__
 contextvars.Context.__init__  # Default C __init__ signature is wrong
 dataclasses.field
+dataclasses.KW_ONLY
 dummy_threading
 enum.Enum._generate_next_value_
 fractions.Fraction.__new__  # overload is too complicated for stubtest to resolve