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-rw-r--r--Doc/library/argparse.rst4
1 files changed, 4 insertions, 0 deletions
diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
index ee8562b..ef0db3e 100644
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -1894,6 +1894,10 @@ Argument groups
The function exists on the API by accident through inheritance and
will be removed in the future.
+ .. deprecated:: 3.14
+ Passing prefix_chars_ to :meth:`add_argument_group`
+ is now deprecated.
+
Mutual exclusion
^^^^^^^^^^^^^^^^