Update Doc/library/calendar.rst

Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
python · hugovk · Apr 29, 2023 · Apr 25, 2023 · Apr 26, 2023 · Apr 26, 2023
commit 7628f1175d060938cc461ed76ccb11cddc5d0c32
diff --git a/Doc/library/calendar.rst b/Doc/library/calendar.rst
@@ -77,6 +77,8 @@ interpreted as prescribed by the ISO 8601 standard.  Year 0 is 1 BC, year -1 is
 
    .. attribute:: DECEMBER
 
+   .. versionadded:: 3.12
+
 
 .. class:: Calendar(firstweekday=0)
Original file line number	Diff line number	Diff line change
Expand Up		@@ -77,6 +77,8 @@ interpreted as prescribed by the ISO 8601 standard. Year 0 is 1 BC, year -1 is

		.. attribute:: DECEMBER
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		.. versionadded:: 3.12


		.. class:: Calendar(firstweekday=0)

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