TST: failing wheel building on PY2 and old numpy (pandas-dev#25631)

closes pandas-dev#25630

pandas/tests/frame/test_constructors.py

@@ -21,7 +21,7 @@
 import pandas as pd
 from pandas import (
     Categorical, DataFrame, Index, MultiIndex, Series, Timedelta, Timestamp,
-    compat, date_range, isna)
+    _np_version_under1p13, compat, date_range, isna)
 from pandas.tests.frame.common import TestData
 import pandas.util.testing as tm
 
@@ -684,6 +684,8 @@ def test_constructor_ndarray(self):
         frame = DataFrame(['foo', 'bar'], index=[0, 1], columns=['A'])
         assert len(frame) == 2
 
+    @pytest.mark.skipif(PY2 & _np_version_under1p13,
+                        reason="old numpy & py2")
     def test_constructor_maskedarray(self):
         self._check_basic_constructor(ma.masked_all)