CLN: pep8 fixes

Author: deniederhut

pandas/tests/frame/test_operators.py

@@ -342,11 +342,12 @@ def test_logical_with_nas(self):
         assert_series_equal(result, expected)
 
     @pytest.mark.parametrize('df,expected', [
-        (pd.DataFrame({'a': [-1, 1]}), pd.DataFrame({'a': [1, -1],})),
-        (pd.DataFrame({'a': [False, True]}), pd.DataFrame({'a': [True, False]})),
+        (pd.DataFrame({'a': [-1, 1]}), pd.DataFrame({'a': [1, -1]})),
+        (pd.DataFrame({'a': [False, True]}),
+            pd.DataFrame({'a': [True, False]})),
         (pd.DataFrame({'a': pd.Series(pd.to_timedelta([-1, 1]))}),
             pd.DataFrame({'a': pd.Series(pd.to_timedelta([1, -1]))}))
-        ])
+    ])
     def test_neg_numeric(self, df, expected):
         assert_frame_equal(-df, expected)
         assert_series_equal(-df['a'], expected['a'])