implement changes post review

Author: saldanhad

doc/source/whatsnew/v3.0.0.rst

@@ -620,8 +620,7 @@ I/O
 ^^^
 - Bug in :class:`DataFrame` and :class:`Series` ``repr`` of :py:class:`collections.abc.Mapping`` elements. (:issue:`57915`)
 - Bug in :meth:`.DataFrame.to_json` when ``"index"`` was a value in the :attr:`DataFrame.column` and :attr:`Index.name` was ``None``. Now, this will fail with a ``ValueError`` (:issue:`58925`)
-- Bug in :meth:`DataFrame._repr_html_` pass :func: ``get_option("display.float_format")`` to :class:`DataFrameFormatter`, such that HTML output respects the configured float formatting. (:issue:`59876`)
-- Bug in :meth:`DataFrame._repr_html_` pass :func:`get_option("display.float_format")` to :class:`DataFrameFormatter`, such that HTML output respects the configured float formatting (:issue:`59876`)
+- Bug in :meth:`DataFrame._repr_html_` which ignored the ``"display.float_format"`` option (:issue:`59876`)
 - Bug in :meth:`DataFrame.from_records` where ``columns`` parameter with numpy structured array was not reordering and filtering out the columns (:issue:`59717`)
 - Bug in :meth:`DataFrame.to_dict` raises unnecessary ``UserWarning`` when columns are not unique and ``orient='tight'``. (:issue:`58281`)
 - Bug in :meth:`DataFrame.to_excel` when writing empty :class:`DataFrame` with :class:`MultiIndex` on both axes (:issue:`57696`)

pandas/tests/io/formats/test_format.py

@@ -26,6 +26,7 @@
     option_context,
     read_csv,
     reset_option,
+    set_option,
 )
 
 from pandas.io.formats import printing
@@ -368,6 +369,27 @@ def test_repr_min_rows(self):
             assert ".." not in repr(df)
             assert ".." not in df._repr_html_()
 
+    @pytest.mark.parametrize(
+        "data, format_option, expected_values",
+        [
+            ({"A": [12345.6789]}, "{:12.3f}", "12345.679"),
+            ({"A": [None]}, "{:.3f}", "None"),
+            ({"A": [""]}, "{:.2f}", ""),
+            ({"A": [112345.6789]}, "{:6.3f}", "112345.679"),
+        ],
+    )  
+    def test_repr_float_formatting_html_output(self, data, format_option, expected_values):
+        if format_option is not None:
+            set_option("display.float_format", format_option.format)
+
+            df = DataFrame(data)
+            html_output = df._repr_html_()
+            assert expected_values in html_output
+
+            # reset option
+            if format_option is not None:
+                reset_option("display.float_format")
+
     def test_str_max_colwidth(self):
         # GH 7856
         df = DataFrame(