TST: Make an inconsistent xfail non-strict under Python 3.5

Author: stuarteberg

pandas/tests/series/test_analytics.py

@@ -5,6 +5,7 @@
 from numpy import nan
 import pytest
 
+from pandas.compat import PY35
 import pandas.util._test_decorators as td
 
 import pandas as pd
@@ -1489,7 +1490,8 @@ def test_value_counts_with_nan(self):
             "unicode_",
             "timedelta64[h]",
             pytest.param(
-                "datetime64[D]", marks=pytest.mark.xfail(reason="GH#7996", strict=True)
+                "datetime64[D]",
+                marks=pytest.mark.xfail(reason="GH#7996", strict=not PY35),
             ),
         ],
     )