review changes

Author: brianhuey

doc/source/whatsnew/v0.20.0.txt

@@ -146,6 +146,7 @@ Other enhancements
 - ``Series/DataFrame.asfreq()`` have gained a ``fill_value`` parameter, to fill missing values (:issue:`3715`).
 - ``Series/DataFrame.resample.asfreq`` have gained a ``fill_value`` parameter, to fill missing values during resampling (:issue:`3715`).
 - ``pandas.tools.hashing`` has gained a ``hash_tuples`` routine, and ``hash_pandas_object`` has gained the ability to hash a ``MultiIndex`` (:issue:`15224`)
+- ``pd.read_html()`` parses multiple header rows, creating a multiindex header. (:issue:`13434`).
 
 .. _ISO 8601 duration: https://en.wikipedia.org/wiki/ISO_8601#Durations
 

pandas/io/tests/test_html.py

@@ -761,6 +761,7 @@ def test_keep_default_na(self):
         tm.assert_frame_equal(expected_df, html_df)
 
     def test_multiple_header_rows(self):
+        # Issue #13434
         expected_df = DataFrame(data=[("Hillary", 68, "D"),
                                       ("Bernie", 74, "D"),
                                       ("Donald", 69, "R")])
@@ -881,6 +882,7 @@ def test_computer_sales_page(self):
         self.read_html(data, header=[0, 1])
 
     def test_multiple_header_rows(self):
+        # Issue #13434
         expected_df = DataFrame(data=[("Hillary", 68, "D"),
                                       ("Bernie", 74, "D"),
                                       ("Donald", 69, "R")])