Remove fields from deprecated classes

Add @deprecated marker to deprecated `Constant` attributes
python · srittau · Jul 11, 2025 · Jul 11, 2025 · Jul 11, 2025 · Jul 11, 2025
commit 3c59c0ce8cf56245a0fcb52a9362c253a559b591
diff --git a/stdlib/ast.pyi b/stdlib/ast.pyi
@@ -1096,8 +1096,12 @@
     kind: str | None
     if sys.version_info < (3, 14):
         # Aliases for value, for backwards compatibility
-        s: _ConstantValue
-        n: _ConstantValue
+        @deprecated("Attribute n is deprecated and will be removed in Python 3.14; use value instead")
+        @property
+        def n(self) -> _ConstantValue: ...
+        @deprecated("Attribute s is deprecated and will be removed in Python 3.14; use value instead")
+        @property
+        def s(self) -> _ConstantValue: ...
 
     def __init__(self, value: _ConstantValue, kind: str | None = None, **kwargs: Unpack[_Attributes]) -> None: ...
 
@@ -1696,24 +1700,15 @@
 if sys.version_info < (3, 14):
     @deprecated("Replaced by ast.Constant; removed in Python 3.14")
     class Num(Constant, metaclass=_ABC):
         def __new__(cls, *args, **kwargs) -> Constant: ...  # type: ignore[misc]
-        value: int | float | complex
-        # Aliases for value, for backwards compatibility
-        n: int | float | complex
 
     @deprecated("Replaced by ast.Constant; removed in Python 3.14")
     class Str(Constant, metaclass=_ABC):
         def __new__(cls, *args, **kwargs) -> Constant: ...  # type: ignore[misc]
-        value: str
-        # Aliases for value, for backwards compatibility
-        s: str
 
     @deprecated("Replaced by ast.Constant; removed in Python 3.14")
     class Bytes(Constant, metaclass=_ABC):
         def __new__(cls, *args, **kwargs) -> Constant: ...  # type: ignore[misc]
-        value: bytes
-        # Aliases for value, for backwards compatibility
-        s: bytes
 
     @deprecated("Replaced by ast.Constant; removed in Python 3.14")
     class NameConstant(Constant, metaclass=_ABC):