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-rw-r--r--Doc/library/functions.rst1
1 files changed, 1 insertions, 0 deletions
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index 60fadca..15b64ed 100644
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -1055,6 +1055,7 @@ are always available. They are listed here in alphabetical order.
The file is now non-inheritable.
.. deprecated-removed:: 3.4 4.0
+
The ``'U'`` mode.