diff --git a/pandas/plotting/_misc.py b/pandas/plotting/_misc.py
index 30c5ba0ed94b6..65af0b50178bb 100644
--- a/pandas/plotting/_misc.py
+++ b/pandas/plotting/_misc.py
@@ -359,8 +359,7 @@ def parallel_coordinates(
     Examples
     --------
     >>> from matplotlib import pyplot as plt
-    >>> df = pd.read_csv('https://raw.github.com/pandas-dev/pandas/master'
-                        '/pandas/tests/data/iris.csv')
+    >>> df = pd.read_csv('https://raw.github.com/pandas-dev/pandas/master/pandas/tests/data/iris.csv')
     >>> pd.plotting.parallel_coordinates(
             df, 'Name',
             color=('#556270', '#4ECDC4', '#C7F464'))
diff --git a/pandas/tests/util/test_assert_frame_equal.py b/pandas/tests/util/test_assert_frame_equal.py
index fe3e1ff906919..9b4bb151c04ec 100644
--- a/pandas/tests/util/test_assert_frame_equal.py
+++ b/pandas/tests/util/test_assert_frame_equal.py
@@ -219,7 +219,7 @@ def test_frame_equal_unicode(df1, df2, msg, by_blocks_fixture, obj_fixture):
     #
     # Test ensures that `tm.assert_frame_equals` raises the right exception
     # when comparing DataFrames containing differing unicode objects.
-    msg = msg.format(obj=obj_fixture)
+    msg = f"{obj_fixture}"
     with pytest.raises(AssertionError, match=msg):
         tm.assert_frame_equal(df1, df2, by_blocks=by_blocks_fixture, obj=obj_fixture)