Backport PR pandas-dev#25517: TST: xfail non-writeable pytables tests…

… with numpy 1.16x (pandas-dev#25518)

pandas/compat/numpy/__init__.py

@@ -12,6 +12,8 @@
 _np_version_under1p13 = _nlv < LooseVersion('1.13')
 _np_version_under1p14 = _nlv < LooseVersion('1.14')
 _np_version_under1p15 = _nlv < LooseVersion('1.15')
+_np_version_under1p16 = _nlv < LooseVersion('1.16')
+_np_version_under1p17 = _nlv < LooseVersion('1.17')
 
 
 if _nlv < '1.12':
@@ -64,5 +66,7 @@ def np_array_datetime64_compat(arr, *args, **kwargs):
 __all__ = ['np',
            '_np_version_under1p13',
            '_np_version_under1p14',
-           '_np_version_under1p15'
+           '_np_version_under1p15',
+           '_np_version_under1p16',
+           '_np_version_under1p17'
            ]

pandas/tests/indexes/multi/test_analytics.py

@@ -4,6 +4,7 @@
 import pytest
 
 from pandas.compat import lrange
+from pandas.compat.numpy import _np_version_under1p17
 
 import pandas as pd
 from pandas import Index, MultiIndex, date_range, period_range
@@ -292,9 +293,15 @@ def test_numpy_ufuncs(func):
         verify_integrity=False
     )
 
-    with pytest.raises(Exception):
-        with np.errstate(all='ignore'):
-            func(idx)
+    if _np_version_under1p17:
+        expected_exception = AttributeError
+        msg = "'tuple' object has no attribute '{}'".format(func.__name__)
+    else:
+        expected_exception = TypeError
+        msg = ("loop of ufunc does not support argument 0 of type tuple which"
+               " has no callable {} method").format(func.__name__)
+    with pytest.raises(expected_exception, match=msg):
+        func(idx)
 
 
 @pytest.mark.parametrize('func', [

pandas/tests/io/test_pytables.py

@@ -34,6 +34,15 @@
 tables = pytest.importorskip('tables')
 
 
+# TODO:
+# remove when gh-24839 is fixed; this affects numpy 1.16
+# and pytables 3.4.4
+xfail_non_writeable = pytest.mark.xfail(
+    LooseVersion(np.__version__) >= LooseVersion('1.16'),
+    reason=('gh-25511, gh-24839. pytables needs a '
+            'release beyong 3.4.4 to support numpy 1.16x'))
+
+
 _default_compressor = ('blosc' if LooseVersion(tables.__version__) >=
                        LooseVersion('2.2') else 'zlib')
 
@@ -875,6 +884,7 @@ def test_put_integer(self):
         df = DataFrame(np.random.randn(50, 100))
         self._check_roundtrip(df, tm.assert_frame_equal)
 
+    @xfail_non_writeable
     def test_put_mixed_type(self):
         df = tm.makeTimeDataFrame()
         df['obj1'] = 'foo'
@@ -1511,7 +1521,10 @@ def test_to_hdf_with_min_itemsize(self):
             tm.assert_series_equal(pd.read_hdf(path, 'ss4'),
                                    pd.concat([df['B'], df2['B']]))
 
-    @pytest.mark.parametrize("format", ['fixed', 'table'])
+    @pytest.mark.parametrize(
+        "format",
+        [pytest.param('fixed', marks=xfail_non_writeable),
+         'table'])
     def test_to_hdf_errors(self, format):
 
         data = ['\ud800foo']
@@ -1958,6 +1971,7 @@ def test_pass_spec_to_storer(self):
             pytest.raises(TypeError, store.select,
                           'df', where=[('columns=A')])
 
+    @xfail_non_writeable
     def test_append_misc(self):
 
         with ensure_clean_store(self.path) as store:
@@ -2189,6 +2203,7 @@ def test_unimplemented_dtypes_table_columns(self):
             # this fails because we have a date in the object block......
             pytest.raises(TypeError, store.append, 'df_unimplemented', df)
 
+    @xfail_non_writeable
     @pytest.mark.skipif(
         LooseVersion(np.__version__) == LooseVersion('1.15.0'),
         reason=("Skipping  pytables test when numpy version is "
@@ -2747,6 +2762,7 @@ def test_float_index(self):
         s = Series(np.random.randn(10), index=index)
         self._check_roundtrip(s, tm.assert_series_equal)
 
+    @xfail_non_writeable
     def test_tuple_index(self):
 
         # GH #492
@@ -2759,6 +2775,7 @@ def test_tuple_index(self):
             simplefilter("ignore", pd.errors.PerformanceWarning)
             self._check_roundtrip(DF, tm.assert_frame_equal)
 
+    @xfail_non_writeable
     @pytest.mark.filterwarnings("ignore::pandas.errors.PerformanceWarning")
     def test_index_types(self):
 
@@ -2822,6 +2839,7 @@ def test_timeseries_preepoch(self):
         except OverflowError:
             pytest.skip('known failer on some windows platforms')
 
+    @xfail_non_writeable
     @pytest.mark.parametrize("compression", [
         False, pytest.param(True, marks=td.skip_if_windows_python_3)
     ])
@@ -2852,6 +2870,7 @@ def test_frame(self, compression):
         # empty
         self._check_roundtrip(df[:0], tm.assert_frame_equal)
 
+    @xfail_non_writeable
     def test_empty_series_frame(self):
         s0 = Series()
         s1 = Series(name='myseries')
@@ -2865,8 +2884,10 @@ def test_empty_series_frame(self):
         self._check_roundtrip(df1, tm.assert_frame_equal)
         self._check_roundtrip(df2, tm.assert_frame_equal)
 
-    def test_empty_series(self):
-        for dtype in [np.int64, np.float64, np.object, 'm8[ns]', 'M8[ns]']:
+    @xfail_non_writeable
+    @pytest.mark.parametrize(
+        'dtype', [np.int64, np.float64, np.object, 'm8[ns]', 'M8[ns]'])
+    def test_empty_series(self, dtype):
             s = Series(dtype=dtype)
             self._check_roundtrip(s, tm.assert_series_equal)
 
@@ -2947,6 +2968,7 @@ def test_store_series_name(self):
             recons = store['series']
             tm.assert_series_equal(recons, series)
 
+    @xfail_non_writeable
     @pytest.mark.parametrize("compression", [
         False, pytest.param(True, marks=td.skip_if_windows_python_3)
     ])
@@ -4538,6 +4560,7 @@ def test_pytables_native2_read(self, datapath):
             d1 = store['detector']
             assert isinstance(d1, DataFrame)
 
+    @xfail_non_writeable
     def test_legacy_table_fixed_format_read_py2(self, datapath):
         # GH 24510
         # legacy table with fixed format written in Python 2
@@ -4725,6 +4748,7 @@ def test_unicode_longer_encoded(self):
             result = store.get('df')
             tm.assert_frame_equal(result, df)
 
+    @xfail_non_writeable
     def test_store_datetime_mixed(self):
 
         df = DataFrame(
@@ -5285,6 +5309,7 @@ def test_complex_table(self):
             reread = read_hdf(path, 'df')
             assert_frame_equal(df, reread)
 
+    @xfail_non_writeable
     def test_complex_mixed_fixed(self):
         complex64 = np.array([1.0 + 1.0j, 1.0 + 1.0j,
                               1.0 + 1.0j, 1.0 + 1.0j], dtype=np.complex64)