fixup

JelleZijlstra · Sep 28, 2024 · 65da3f1 · 65da3f1
1 parent cae36c7
commit 65da3f1
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Showing 5 changed files with 10 additions and 7 deletions.
diff --git a/Doc/deprecations/pending-removal-in-future.rst b/Doc/deprecations/pending-removal-in-future.rst
@@ -122,6 +122,11 @@ although there is currently no date scheduled for their removal.
 
 * :class:`typing.Text` (:gh:`92332`).
 
+* The internal class ``typing._UnionGenericAlias`` is no longer used to implement
+  :class:`typing.Union`. To preserve compatibility with users using this private
+  class, a compatibility shim will be provided until at least Python 3.17. (Contributed by
+  Jelle Zijlstra in :gh:`105499`.)
+
 * :class:`unittest.IsolatedAsyncioTestCase`: it is deprecated to return a value
   that is not ``None`` from a test case.
 

diff --git a/Doc/library/types.rst b/Doc/library/types.rst
@@ -359,7 +359,7 @@ Standard names are defined for the following types:
 
    .. versionadded:: 3.10
 
-   .. versionchanged:: 3.13
+   .. versionchanged:: 3.14
 
       This is now an alias for :class:`typing.Union`.
 

diff --git a/Doc/library/typing.rst b/Doc/library/typing.rst
@@ -1121,7 +1121,7 @@ These can be used as types in annotations. They all support subscription using
       Unions can now be written as ``X | Y``. See
       :ref:`union type expressions<types-union>`.
 
-   .. versionchanged:: 3.13
+   .. versionchanged:: 3.14
       :class:`types.UnionType` is now an alias for :class:`Union`, and both
       ``Union[int, str]`` and ``int | str`` create instances of the same class.
       To check whether an object is a ``Union`` at runtime, use

diff --git a/Doc/whatsnew/3.13.rst b/Doc/whatsnew/3.13.rst
@@ -1546,8 +1546,6 @@ Optimizations
 Removed Modules And APIs
 ========================
 
-=======
-
 .. _whatsnew313-pep594:
 
 PEP 594: Remove "dead batteries" from the standard library

diff --git a/Lib/typing.py b/Lib/typing.py
@@ -1649,11 +1649,11 @@ def __getitem__(self, params):
 
 class _UnionGenericAliasMeta(type):
     def __instancecheck__(self, inst: type) -> bool:
-        warnings._deprecated("_UnionGenericAlias", remove=(3, 15))
+        warnings._deprecated("_UnionGenericAlias", remove=(3, 17))
         return isinstance(inst, Union)
 
     def __eq__(self, other):
-        warnings._deprecated("_UnionGenericAlias", remove=(3, 15))
+        warnings._deprecated("_UnionGenericAlias", remove=(3, 17))
         if other is _UnionGenericAlias or other is Union:
             return True
         return NotImplemented
@@ -1669,7 +1669,7 @@ class _UnionGenericAlias(metaclass=_UnionGenericAliasMeta):
 
     """
     def __new__(cls, self_cls, parameters, /, *, name=None):
-        warnings._deprecated("_UnionGenericAlias", remove=(3, 15))
+        warnings._deprecated("_UnionGenericAlias", remove=(3, 17))
         return Union[parameters]