more fixes

Author: dickreuter

doc/source/whatsnew/v0.24.0.txt

@@ -626,7 +626,7 @@ MultiIndex
 
 - Removed compatibility for :class:`MultiIndex` pickles prior to version 0.8.0; compatibility with :class:`MultiIndex` pickles from version 0.13 forward is maintained (:issue:`21654`)
 - :meth:`MultiIndex.get_loc_level` (and as a consequence, ``.loc`` on a :class:``MultiIndex``ed object) will now raise a ``KeyError``, rather than returning an empty ``slice``, if asked a label which is present in the ``levels`` but is unused (:issue:`22221`)
-- Fix `TypeError` in Python 3 when creating `MultiIndex` in which some columns are of object type, e.g. when labels are tuples  (:issue:'15457')
+- Fix `TypeError` in Python 3 when creating :class: `MultiIndex` in which some columns are of object type, e.g. when labels are tuples  (:issue:`15457`)
 
 I/O
 ^^^

pandas/tests/indexes/multi/test_constructor.py

@@ -464,9 +464,11 @@ def test_tuples_with_name_string():
     with pytest.raises(ValueError):
         pd.Index(li, name='a')
 
+
 def test_from_tuples_with_tuple_label():
     # GH 15457
-    expected = pd.DataFrame([[2, 1, 2], [4, (1, 2), 3]], columns=['a', 'b', 'c']).set_index(['a', 'b'])
+    expected = pd.DataFrame([[2, 1, 2], [4, (1, 2), 3]],
+                            columns=['a', 'b', 'c']).set_index(['a', 'b'])
     idx = pd.MultiIndex.from_tuples([(2, 1), (4, (1, 2))], names=('a', 'b'))
     result = pd.DataFrame([2, 3], columns=['c'], index=idx)
     tm.assert_frame_equal(expected, result)