[3.13] gh-83926: BlockingIOError characters_written is byte count (GH-141215) (#142815)

miss-islington · cmaloney · web-flow · commit 3b5c7ba76fb6 · 2025-12-16T12:04:13.000Z
gh-83926: BlockingIOError characters_written is byte count (GH-141215) (cherry picked from commit e12c744) Co-authored-by: Cody Maloney <cmaloney@users.noreply.github.com>
diff --git a/Doc/library/exceptions.rst b/Doc/library/exceptions.rst
@@ -725,8 +725,8 @@ depending on the system error code.
 
    .. attribute:: characters_written
 
-      An integer containing the number of characters written to the stream
-      before it blocked.  This attribute is available when using the
+      An integer containing the number of **bytes** written to the stream
+      before it blocked. This attribute is available when using the
       buffered I/O classes from the :mod:`io` module.
 
 .. exception:: ChildProcessError
