fixups

doc/source/user_guide/sparse.rst

@@ -172,14 +172,14 @@ use the python warnings module to control warnings. If you wish to ignore the wa
 
    >>> import warnings
 
-   >>> warnings.filterwarnings('ignore', 'Sparse', FutureWarning
+   >>> warnings.filterwarnings('ignore', 'Sparse', FutureWarning)
    >>> pd.SparseSeries()  # No warning message
    Series([], dtype: Sparse[float64, nan])
    BlockIndex
    Block locations: array([], dtype=int32)
    Block lengths: array([], dtype=int32)
 
-But we recommend modifying your code, rather than ignoring the warning.l
+But we recommend modifying your code, rather than ignoring the warning.
 
 **Construction**
 

doc/source/whatsnew/v0.25.0.rst

@@ -226,6 +226,7 @@ Deprecations
 
 - Deprecated the ``units=M`` (months) and ``units=Y`` (year) parameters for ``units`` of :func:`pandas.to_timedelta`, :func:`pandas.Timedelta` and :func:`pandas.TimedeltaIndex` (:issue:`16344`)
 - The functions :func:`pandas.to_datetime` and :func:`pandas.to_timedelta` have deprecated the ``box`` keyword. Instead, use :meth:`to_numpy` or :meth:`Timestamp.to_datetime64` or :meth:`Timedelta.to_timedelta64`. (:issue:`24416`)
+- The ``SparseSeries`` and ``SparseDataFrame`` subclasses are deprecated. Use a ``DataFrame`` or ``Series`` with sparse values instead. See :ref:`sparse.migration` for more (:issue:`19239`).
 
 .. _whatsnew_0250.prior_deprecations:
 

pandas/tests/sparse/test_indexing.py

@@ -602,7 +602,7 @@ def test_reindex(self):
 
 
 @pytest.mark.filterwarnings("ignore:Sparse:FutureWarning")
-class TestSparseDataFrameIndexing(object):
+class TestSparseDataFrameIndexing:
 
     def test_getitem(self):
         orig = pd.DataFrame([[1, np.nan, np.nan],