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-rw-r--r--Doc/library/collections.abc.rst5
-rw-r--r--Doc/whatsnew/3.12.rst3
2 files changed, 7 insertions, 1 deletions
diff --git a/Doc/library/collections.abc.rst b/Doc/library/collections.abc.rst
index 43a3286ba83..158f4851634 100644
--- a/Doc/library/collections.abc.rst
+++ b/Doc/library/collections.abc.rst
@@ -14,7 +14,10 @@
.. testsetup:: *
- from collections.abc import *
+ import warnings
+ # Ignore warning when ByteString is imported
+ with warnings.catch_warnings(action='ignore', category=DeprecationWarning):
+ from collections.abc import *
import itertools
__name__ = '<doctest>'
diff --git a/Doc/whatsnew/3.12.rst b/Doc/whatsnew/3.12.rst
index eb13d4bf031..546c7147bb3 100644
--- a/Doc/whatsnew/3.12.rst
+++ b/Doc/whatsnew/3.12.rst
@@ -831,6 +831,9 @@ Pending Removal in Python 3.14
For use in typing, prefer a union, like ``bytes | bytearray``, or :class:`collections.abc.Buffer`.
(Contributed by Shantanu Jain in :gh:`91896`.)
+* :class:`typing.ByteString`, deprecated since Python 3.9, now causes an
+ :exc:`DeprecationWarning` to be emitted when it is used or accessed.
+
* Creating immutable types (:data:`Py_TPFLAGS_IMMUTABLETYPE`) with mutable
bases using the C API.