Add doctest and improve readability for move_to_end() example. (GH-30370) (GH-30373)
diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index 8bf3cb6..b8a717d 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -1120,14 +1120,16 @@
Move an existing *key* to either end of an ordered dictionary. The item
is moved to the right end if *last* is true (the default) or to the
beginning if *last* is false. Raises :exc:`KeyError` if the *key* does
- not exist::
+ not exist:
+
+ .. doctest::
>>> d = OrderedDict.fromkeys('abcde')
>>> d.move_to_end('b')
- >>> ''.join(d.keys())
+ >>> ''.join(d)
'acdeb'
>>> d.move_to_end('b', last=False)
- >>> ''.join(d.keys())
+ >>> ''.join(d)
'bacde'
.. versionadded:: 3.2