From 62f2fcd340908225a90a188a80b307b63bba6b72 Mon Sep 17 00:00:00 2001
From: shubchat <shub.chat@gmail.com>
Date: Mon, 20 Jan 2020 05:41:14 +1100
Subject: [PATCH 1/9] Adding error messages issue 30999

---
 pandas/tests/base/test_constructors.py | 17 ++++++++++-------
 pandas/tests/base/test_conversion.py   |  9 +++++----
 pandas/tests/base/test_ops.py          |  8 +++++---
 3 files changed, 20 insertions(+), 14 deletions(-)

diff --git a/pandas/tests/base/test_constructors.py b/pandas/tests/base/test_constructors.py
index 0b7274399aafc..eee592a0f9f21 100644
--- a/pandas/tests/base/test_constructors.py
+++ b/pandas/tests/base/test_constructors.py
@@ -53,13 +53,15 @@ def test_invalid_delegation(self):
 
         delegate = self.Delegate(self.Delegator())
 
-        with pytest.raises(TypeError):
+        msg="The delegate method has not been overridden"
+
+        with pytest.raises(TypeError, match=msg):
             delegate.foo
 
-        with pytest.raises(TypeError):
+        with pytest.raises(TypeError, match=msg):
             delegate.foo = 5
 
-        with pytest.raises(TypeError):
+        with pytest.raises(TypeError, match=msg):
             delegate.foo()
 
     @pytest.mark.skipif(PYPY, reason="not relevant for PyPy")
@@ -85,8 +87,8 @@ class T(NoNewAttributesMixin):
         t._freeze()
         assert "__frozen" in dir(t)
         assert getattr(t, "__frozen")
-
-        with pytest.raises(AttributeError):
+        msg="No new attribute found"
+        with pytest.raises(AttributeError, match=msg):
             t.b = "test"
 
         assert not hasattr(t, "b")
@@ -129,7 +131,8 @@ def test_constructor_datetime_outofbound(self, a, klass):
         # datetime64[non-ns] raise error, other cases result in object dtype
         # and preserve original data
         if a.dtype.kind == "M":
-            with pytest.raises(pd.errors.OutOfBoundsDatetime):
+            msg="The datatime object is out of bound"
+            with pytest.raises(pd.errors.OutOfBoundsDatetime, match=msg):
                 klass(a)
         else:
             result = klass(a)
@@ -138,5 +141,5 @@ def test_constructor_datetime_outofbound(self, a, klass):
 
         # Explicit dtype specified
         # Forced conversion fails for all -> all cases raise error
-        with pytest.raises(pd.errors.OutOfBoundsDatetime):
+        with pytest.raises(pd.errors.OutOfBoundsDatetime,match=msg):
             klass(a, dtype="datetime64[ns]")
diff --git a/pandas/tests/base/test_conversion.py b/pandas/tests/base/test_conversion.py
index 07a15d0619bb6..1ae0c01ea1861 100644
--- a/pandas/tests/base/test_conversion.py
+++ b/pandas/tests/base/test_conversion.py
@@ -303,7 +303,8 @@ def test_array(array, attr, index_or_series):
 
 def test_array_multiindex_raises():
     idx = pd.MultiIndex.from_product([["A"], ["a", "b"]])
-    with pytest.raises(ValueError, match="MultiIndex"):
+    msg="The array is multiindex and has no single backing array"
+    with pytest.raises(ValueError,match=msg):
         idx.array
 
 
@@ -429,11 +430,11 @@ def test_to_numpy_na_value_numpy_dtype(container, values, dtype, na_value, expec
 def test_to_numpy_kwargs_raises():
     # numpy
     s = pd.Series([1, 2, 3])
-    match = r"to_numpy\(\) got an unexpected keyword argument 'foo'"
-    with pytest.raises(TypeError, match=match):
+    msg = r"to_numpy\(\) got an unexpected keyword argument 'foo'"
+    with pytest.raises(TypeError, match=msg):
         s.to_numpy(foo=True)
 
     # extension
     s = pd.Series([1, 2, 3], dtype="Int64")
-    with pytest.raises(TypeError, match=match):
+    with pytest.raises(TypeError, match=msg):
         s.to_numpy(foo=True)
diff --git a/pandas/tests/base/test_ops.py b/pandas/tests/base/test_ops.py
index 2693eb12dda71..6de847bcb62ab 100644
--- a/pandas/tests/base/test_ops.py
+++ b/pandas/tests/base/test_ops.py
@@ -126,8 +126,9 @@ def check_ops_properties(self, props, filter=None, ignore_failures=False):
                     err = AttributeError
                     if issubclass(type(o), DatetimeIndexOpsMixin):
                         err = TypeError
+                        msg="The object cannot be datatimelike"
 
-                    with pytest.raises(err):
+                    with pytest.raises(err,match=msg):
                         getattr(o, op)
 
     @pytest.mark.parametrize("klass", [Series, DataFrame])
@@ -211,9 +212,10 @@ def test_none_comparison(self):
                 if is_datetime64_dtype(o) or is_datetime64tz_dtype(o):
                     # Following DatetimeIndex (and Timestamp) convention,
                     # inequality comparisons with Series[datetime64] raise
-                    with pytest.raises(TypeError):
+                    msg="The dtype cannot be datetime64 or datetime64tz"
+                    with pytest.raises(TypeError,match=msg):
                         None > o
-                    with pytest.raises(TypeError):
+                    with pytest.raises(TypeError,match=msg):
                         o > None
                 else:
                     result = None > o

From 423f27e70fcbc43c4b7adad61677cca2a3b8f7a6 Mon Sep 17 00:00:00 2001
From: shubchat <shub.chat@gmail.com>
Date: Mon, 20 Jan 2020 06:03:13 +1100
Subject: [PATCH 2/9] Adding white spaces

---
 pandas/tests/base/test_constructors.py |  8 ++++----
 pandas/tests/base/test_conversion.py   |  4 ++--
 pandas/tests/base/test_ops.py          | 24 ++++++++++++++----------
 3 files changed, 20 insertions(+), 16 deletions(-)

diff --git a/pandas/tests/base/test_constructors.py b/pandas/tests/base/test_constructors.py
index eee592a0f9f21..6912c3ac9c5c8 100644
--- a/pandas/tests/base/test_constructors.py
+++ b/pandas/tests/base/test_constructors.py
@@ -53,7 +53,7 @@ def test_invalid_delegation(self):
 
         delegate = self.Delegate(self.Delegator())
 
-        msg="The delegate method has not been overridden"
+        msg= "The delegate method has not been overridden"
 
         with pytest.raises(TypeError, match=msg):
             delegate.foo
@@ -87,7 +87,7 @@ class T(NoNewAttributesMixin):
         t._freeze()
         assert "__frozen" in dir(t)
         assert getattr(t, "__frozen")
-        msg="No new attribute found"
+        msg= "No new attribute found"
         with pytest.raises(AttributeError, match=msg):
             t.b = "test"
 
@@ -131,7 +131,7 @@ def test_constructor_datetime_outofbound(self, a, klass):
         # datetime64[non-ns] raise error, other cases result in object dtype
         # and preserve original data
         if a.dtype.kind == "M":
-            msg="The datatime object is out of bound"
+            msg= "The datatime object is out of bound"
             with pytest.raises(pd.errors.OutOfBoundsDatetime, match=msg):
                 klass(a)
         else:
@@ -141,5 +141,5 @@ def test_constructor_datetime_outofbound(self, a, klass):
 
         # Explicit dtype specified
         # Forced conversion fails for all -> all cases raise error
-        with pytest.raises(pd.errors.OutOfBoundsDatetime,match=msg):
+        with pytest.raises(pd.errors.OutOfBoundsDatetime, match=msg):
             klass(a, dtype="datetime64[ns]")
diff --git a/pandas/tests/base/test_conversion.py b/pandas/tests/base/test_conversion.py
index 1ae0c01ea1861..da6d0cf2cbba9 100644
--- a/pandas/tests/base/test_conversion.py
+++ b/pandas/tests/base/test_conversion.py
@@ -303,8 +303,8 @@ def test_array(array, attr, index_or_series):
 
 def test_array_multiindex_raises():
     idx = pd.MultiIndex.from_product([["A"], ["a", "b"]])
-    msg="The array is multiindex and has no single backing array"
-    with pytest.raises(ValueError,match=msg):
+    msg= "The array is multiindex and has no single backing array"
+    with pytest.raises(ValueError, match=msg):
         idx.array
 
 
diff --git a/pandas/tests/base/test_ops.py b/pandas/tests/base/test_ops.py
index 6de847bcb62ab..4eb1684b60932 100644
--- a/pandas/tests/base/test_ops.py
+++ b/pandas/tests/base/test_ops.py
@@ -126,9 +126,9 @@ def check_ops_properties(self, props, filter=None, ignore_failures=False):
                     err = AttributeError
                     if issubclass(type(o), DatetimeIndexOpsMixin):
                         err = TypeError
-                        msg="The object cannot be datatimelike"
+                        msg= "The object cannot be datatimelike"
 
-                    with pytest.raises(err,match=msg):
+                    with pytest.raises(err, match=msg):
                         getattr(o, op)
 
     @pytest.mark.parametrize("klass", [Series, DataFrame])
@@ -212,10 +212,10 @@ def test_none_comparison(self):
                 if is_datetime64_dtype(o) or is_datetime64tz_dtype(o):
                     # Following DatetimeIndex (and Timestamp) convention,
                     # inequality comparisons with Series[datetime64] raise
-                    msg="The dtype cannot be datetime64 or datetime64tz"
-                    with pytest.raises(TypeError,match=msg):
+                    msg= "The dtype cannot be datetime64 or datetime64tz"
+                    with pytest.raises(TypeError, match=msg):
                         None > o
-                    with pytest.raises(TypeError,match=msg):
+                    with pytest.raises(TypeError, match=msg):
                         o > None
                 else:
                     result = None > o
@@ -237,7 +237,8 @@ def test_ndarray_compat_properties(self):
             for p in ["flags", "strides", "itemsize", "base", "data"]:
                 assert not hasattr(o, p)
 
-            with pytest.raises(ValueError):
+            msg="Ndarray not compatible"
+            with pytest.raises(ValueError,match=msg):
                 o.item()  # len > 1
 
             assert o.ndim == 1
@@ -440,7 +441,8 @@ def test_value_counts_bins(self, index_or_series):
         s = klass(s_values)
 
         # bins
-        with pytest.raises(TypeError):
+        msg="No value counts for the corresponding object type"
+        with pytest.raises(TypeError,match=msg):
             s.value_counts(bins=1)
 
         s1 = Series([1, 1, 2, 3])
@@ -859,7 +861,8 @@ def test_validate_bool_args(self):
         invalid_values = [1, "True", [1, 2, 3], 5.0]
 
         for value in invalid_values:
-            with pytest.raises(ValueError):
+            msg="Boolean(True/False) argument needed but not provided"
+            with pytest.raises(ValueError,match=msg):
                 self.int_series.drop_duplicates(inplace=value)
 
     def test_getitem(self):
@@ -872,9 +875,10 @@ def test_getitem(self):
 
             assert i[-1] == i[9]
 
-            with pytest.raises(IndexError):
+            msg="Index out of bounds"
+            with pytest.raises(IndexError,match=msg):
                 i[20]
-            with pytest.raises(IndexError):
+            with pytest.raises(IndexError),match=msg:
                 s.iloc[20]
 
     @pytest.mark.parametrize("indexer_klass", [list, pd.Index])

From 4fa81a5b4e0fbca9a17b1c9864dad897968ae759 Mon Sep 17 00:00:00 2001
From: shubchat <shub.chat@gmail.com>
Date: Mon, 20 Jan 2020 06:40:10 +1100
Subject: [PATCH 3/9] flake8 corrections

---
 pandas/tests/base/test_constructors.py |  6 +++---
 pandas/tests/base/test_conversion.py   |  2 +-
 pandas/tests/base/test_ops.py          | 22 +++++++++++-----------
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/pandas/tests/base/test_constructors.py b/pandas/tests/base/test_constructors.py
index 6912c3ac9c5c8..229a856e0cc40 100644
--- a/pandas/tests/base/test_constructors.py
+++ b/pandas/tests/base/test_constructors.py
@@ -53,7 +53,7 @@ def test_invalid_delegation(self):
 
         delegate = self.Delegate(self.Delegator())
 
-        msg= "The delegate method has not been overridden"
+        msg = "The delegate method has not been overridden"
 
         with pytest.raises(TypeError, match=msg):
             delegate.foo
@@ -87,7 +87,7 @@ class T(NoNewAttributesMixin):
         t._freeze()
         assert "__frozen" in dir(t)
         assert getattr(t, "__frozen")
-        msg= "No new attribute found"
+        msg = "No new attribute found"
         with pytest.raises(AttributeError, match=msg):
             t.b = "test"
 
@@ -131,7 +131,7 @@ def test_constructor_datetime_outofbound(self, a, klass):
         # datetime64[non-ns] raise error, other cases result in object dtype
         # and preserve original data
         if a.dtype.kind == "M":
-            msg= "The datatime object is out of bound"
+            msg = "The datatime object is out of bound"
             with pytest.raises(pd.errors.OutOfBoundsDatetime, match=msg):
                 klass(a)
         else:
diff --git a/pandas/tests/base/test_conversion.py b/pandas/tests/base/test_conversion.py
index da6d0cf2cbba9..1e66a6e0fb3cf 100644
--- a/pandas/tests/base/test_conversion.py
+++ b/pandas/tests/base/test_conversion.py
@@ -303,7 +303,7 @@ def test_array(array, attr, index_or_series):
 
 def test_array_multiindex_raises():
     idx = pd.MultiIndex.from_product([["A"], ["a", "b"]])
-    msg= "The array is multiindex and has no single backing array"
+    msg = "The array is multiindex and has no single backing array"
     with pytest.raises(ValueError, match=msg):
         idx.array
 
diff --git a/pandas/tests/base/test_ops.py b/pandas/tests/base/test_ops.py
index 4eb1684b60932..a177a2c79f363 100644
--- a/pandas/tests/base/test_ops.py
+++ b/pandas/tests/base/test_ops.py
@@ -126,7 +126,7 @@ def check_ops_properties(self, props, filter=None, ignore_failures=False):
                     err = AttributeError
                     if issubclass(type(o), DatetimeIndexOpsMixin):
                         err = TypeError
-                        msg= "The object cannot be datatimelike"
+                        msg = "The object cannot be datatimelike"
 
                     with pytest.raises(err, match=msg):
                         getattr(o, op)
@@ -212,7 +212,7 @@ def test_none_comparison(self):
                 if is_datetime64_dtype(o) or is_datetime64tz_dtype(o):
                     # Following DatetimeIndex (and Timestamp) convention,
                     # inequality comparisons with Series[datetime64] raise
-                    msg= "The dtype cannot be datetime64 or datetime64tz"
+                    msg = "The dtype cannot be datetime64 or datetime64tz"
                     with pytest.raises(TypeError, match=msg):
                         None > o
                     with pytest.raises(TypeError, match=msg):
@@ -237,8 +237,8 @@ def test_ndarray_compat_properties(self):
             for p in ["flags", "strides", "itemsize", "base", "data"]:
                 assert not hasattr(o, p)
 
-            msg="Ndarray not compatible"
-            with pytest.raises(ValueError,match=msg):
+            msg = "Ndarray not compatible"
+            with pytest.raises(ValueError, match=msg):
                 o.item()  # len > 1
 
             assert o.ndim == 1
@@ -441,8 +441,8 @@ def test_value_counts_bins(self, index_or_series):
         s = klass(s_values)
 
         # bins
-        msg="No value counts for the corresponding object type"
-        with pytest.raises(TypeError,match=msg):
+        msg = "No value counts for the corresponding object type"
+        with pytest.raises(TypeError, match=msg):
             s.value_counts(bins=1)
 
         s1 = Series([1, 1, 2, 3])
@@ -861,8 +861,8 @@ def test_validate_bool_args(self):
         invalid_values = [1, "True", [1, 2, 3], 5.0]
 
         for value in invalid_values:
-            msg="Boolean(True/False) argument needed but not provided"
-            with pytest.raises(ValueError,match=msg):
+            msg = "Boolean(True/False) argument needed but not provided"
+            with pytest.raises(ValueError, match=msg):
                 self.int_series.drop_duplicates(inplace=value)
 
     def test_getitem(self):
@@ -875,10 +875,10 @@ def test_getitem(self):
 
             assert i[-1] == i[9]
 
-            msg="Index out of bounds"
-            with pytest.raises(IndexError,match=msg):
+            msg = "Index out of bounds"
+            with pytest.raises(IndexError, match=msg):
                 i[20]
-            with pytest.raises(IndexError),match=msg:
+            with pytest.raises(IndexError, match=msg):
                 s.iloc[20]
 
     @pytest.mark.parametrize("indexer_klass", [list, pd.Index])

From 568bbdf440cb755c67cc2b91d662bda10c5aa1b2 Mon Sep 17 00:00:00 2001
From: shubchat <shub.chat@gmail.com>
Date: Tue, 21 Jan 2020 05:52:51 +1100
Subject: [PATCH 4/9] edits post CI failure jan 21st

---
 pandas/tests/base/test_constructors.py | 6 +++---
 pandas/tests/base/test_ops.py          | 3 +--
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/pandas/tests/base/test_constructors.py b/pandas/tests/base/test_constructors.py
index 229a856e0cc40..6e20d145dbb16 100644
--- a/pandas/tests/base/test_constructors.py
+++ b/pandas/tests/base/test_constructors.py
@@ -53,7 +53,7 @@ def test_invalid_delegation(self):
 
         delegate = self.Delegate(self.Delegator())
 
-        msg = "The delegate method has not been overridden"
+        msg = "You cannot access the property"
 
         with pytest.raises(TypeError, match=msg):
             delegate.foo
@@ -87,7 +87,7 @@ class T(NoNewAttributesMixin):
         t._freeze()
         assert "__frozen" in dir(t)
         assert getattr(t, "__frozen")
-        msg = "No new attribute found"
+        msg = "You cannot add any new attribute"
         with pytest.raises(AttributeError, match=msg):
             t.b = "test"
 
@@ -131,7 +131,7 @@ def test_constructor_datetime_outofbound(self, a, klass):
         # datetime64[non-ns] raise error, other cases result in object dtype
         # and preserve original data
         if a.dtype.kind == "M":
-            msg = "The datatime object is out of bound"
+            msg = "Out of bounds"
             with pytest.raises(pd.errors.OutOfBoundsDatetime, match=msg):
                 klass(a)
         else:
diff --git a/pandas/tests/base/test_ops.py b/pandas/tests/base/test_ops.py
index a177a2c79f363..c6986e36d1b9f 100644
--- a/pandas/tests/base/test_ops.py
+++ b/pandas/tests/base/test_ops.py
@@ -123,11 +123,10 @@ def check_ops_properties(self, props, filter=None, ignore_failures=False):
 
                     # an object that is datetimelike will raise a TypeError,
                     # otherwise an AttributeError
+                    msg = "The object cannot be datetimelike"
                     err = AttributeError
                     if issubclass(type(o), DatetimeIndexOpsMixin):
                         err = TypeError
-                        msg = "The object cannot be datatimelike"
-
                     with pytest.raises(err, match=msg):
                         getattr(o, op)
 

From 81c907225c4172bab06157f54a4c06d0c537ec1e Mon Sep 17 00:00:00 2001
From: shubchat <shub.chat@gmail.com>
Date: Tue, 21 Jan 2020 06:44:40 +1100
Subject: [PATCH 5/9] other edits for CI

---
 pandas/tests/base/test_constructors.py | 10 ++++++----
 pandas/tests/base/test_conversion.py   |  2 +-
 pandas/tests/base/test_ops.py          | 11 ++++++-----
 3 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/pandas/tests/base/test_constructors.py b/pandas/tests/base/test_constructors.py
index 6e20d145dbb16..d755d254aa31d 100644
--- a/pandas/tests/base/test_constructors.py
+++ b/pandas/tests/base/test_constructors.py
@@ -53,14 +53,15 @@ def test_invalid_delegation(self):
 
         delegate = self.Delegate(self.Delegator())
 
-        msg = "You cannot access the property"
-
+        msg = "You cannot access the property foo"
         with pytest.raises(TypeError, match=msg):
             delegate.foo
-
+        
+        msg = "The property foo cannot be set"
         with pytest.raises(TypeError, match=msg):
             delegate.foo = 5
-
+        
+        msg = "You cannot access the property foo"
         with pytest.raises(TypeError, match=msg):
             delegate.foo()
 
@@ -141,5 +142,6 @@ def test_constructor_datetime_outofbound(self, a, klass):
 
         # Explicit dtype specified
         # Forced conversion fails for all -> all cases raise error
+        msg = "Out of bounds"
         with pytest.raises(pd.errors.OutOfBoundsDatetime, match=msg):
             klass(a, dtype="datetime64[ns]")
diff --git a/pandas/tests/base/test_conversion.py b/pandas/tests/base/test_conversion.py
index 1e66a6e0fb3cf..46fd1551e6170 100644
--- a/pandas/tests/base/test_conversion.py
+++ b/pandas/tests/base/test_conversion.py
@@ -303,7 +303,7 @@ def test_array(array, attr, index_or_series):
 
 def test_array_multiindex_raises():
     idx = pd.MultiIndex.from_product([["A"], ["a", "b"]])
-    msg = "The array is multiindex and has no single backing array"
+    msg = "MultiIndex has no single backing array"
     with pytest.raises(ValueError, match=msg):
         idx.array
 
diff --git a/pandas/tests/base/test_ops.py b/pandas/tests/base/test_ops.py
index c6986e36d1b9f..ce5c8287dd58d 100644
--- a/pandas/tests/base/test_ops.py
+++ b/pandas/tests/base/test_ops.py
@@ -211,7 +211,7 @@ def test_none_comparison(self):
                 if is_datetime64_dtype(o) or is_datetime64tz_dtype(o):
                     # Following DatetimeIndex (and Timestamp) convention,
                     # inequality comparisons with Series[datetime64] raise
-                    msg = "The dtype cannot be datetime64 or datetime64tz"
+                    msg = "Invalid comparison"
                     with pytest.raises(TypeError, match=msg):
                         None > o
                     with pytest.raises(TypeError, match=msg):
@@ -236,7 +236,7 @@ def test_ndarray_compat_properties(self):
             for p in ["flags", "strides", "itemsize", "base", "data"]:
                 assert not hasattr(o, p)
 
-            msg = "Ndarray not compatible"
+            msg = "can only convert an array of size 1 to a Python scalar"
             with pytest.raises(ValueError, match=msg):
                 o.item()  # len > 1
 
@@ -440,7 +440,7 @@ def test_value_counts_bins(self, index_or_series):
         s = klass(s_values)
 
         # bins
-        msg = "No value counts for the corresponding object type"
+        msg = "bins argument only works with numeric data"
         with pytest.raises(TypeError, match=msg):
             s.value_counts(bins=1)
 
@@ -860,7 +860,7 @@ def test_validate_bool_args(self):
         invalid_values = [1, "True", [1, 2, 3], 5.0]
 
         for value in invalid_values:
-            msg = "Boolean(True/False) argument needed but not provided"
+            msg = "expected type bool"
             with pytest.raises(ValueError, match=msg):
                 self.int_series.drop_duplicates(inplace=value)
 
@@ -874,9 +874,10 @@ def test_getitem(self):
 
             assert i[-1] == i[9]
 
-            msg = "Index out of bounds"
+            msg = "index 20 is out of bounds for axis 0 with size 10"
             with pytest.raises(IndexError, match=msg):
                 i[20]
+            msg = "single positional indexer is out-of-bounds"
             with pytest.raises(IndexError, match=msg):
                 s.iloc[20]
 

From dfc679886ec443fc858944e93152389efd3952a0 Mon Sep 17 00:00:00 2001
From: shubchat <shub.chat@gmail.com>
Date: Tue, 21 Jan 2020 06:46:00 +1100
Subject: [PATCH 6/9] other edits for CI

---
 pandas/tests/base/test_constructors.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pandas/tests/base/test_constructors.py b/pandas/tests/base/test_constructors.py
index d755d254aa31d..e27b5c307cd99 100644
--- a/pandas/tests/base/test_constructors.py
+++ b/pandas/tests/base/test_constructors.py
@@ -56,11 +56,11 @@ def test_invalid_delegation(self):
         msg = "You cannot access the property foo"
         with pytest.raises(TypeError, match=msg):
             delegate.foo
-        
+
         msg = "The property foo cannot be set"
         with pytest.raises(TypeError, match=msg):
             delegate.foo = 5
-        
+
         msg = "You cannot access the property foo"
         with pytest.raises(TypeError, match=msg):
             delegate.foo()

From d5f6e659e06ad903e4206439b8cebaeb4e70fd8f Mon Sep 17 00:00:00 2001
From: shubchat <shub.chat@gmail.com>
Date: Wed, 22 Jan 2020 05:47:26 +1100
Subject: [PATCH 7/9] other edits for CI

---
 pandas/tests/base/test_ops.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/tests/base/test_ops.py b/pandas/tests/base/test_ops.py
index ce5c8287dd58d..a4811a483f04e 100644
--- a/pandas/tests/base/test_ops.py
+++ b/pandas/tests/base/test_ops.py
@@ -123,7 +123,7 @@ def check_ops_properties(self, props, filter=None, ignore_failures=False):
 
                     # an object that is datetimelike will raise a TypeError,
                     # otherwise an AttributeError
-                    msg = "The object cannot be datetimelike"
+                    msg = "'Index' object has no attribute 'year'"
                     err = AttributeError
                     if issubclass(type(o), DatetimeIndexOpsMixin):
                         err = TypeError

From fc8ec3b9f77e46a0d91db92e77df3ee01ee66aa6 Mon Sep 17 00:00:00 2001
From: shubchat <shub.chat@gmail.com>
Date: Wed, 22 Jan 2020 06:10:22 +1100
Subject: [PATCH 8/9] other edits for CI

---
 pandas/tests/base/test_ops.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/tests/base/test_ops.py b/pandas/tests/base/test_ops.py
index a4811a483f04e..b02e9f0b38c86 100644
--- a/pandas/tests/base/test_ops.py
+++ b/pandas/tests/base/test_ops.py
@@ -123,7 +123,7 @@ def check_ops_properties(self, props, filter=None, ignore_failures=False):
 
                     # an object that is datetimelike will raise a TypeError,
                     # otherwise an AttributeError
-                    msg = "'Index' object has no attribute 'year'"
+                    msg = "object has no attribute 'year'"
                     err = AttributeError
                     if issubclass(type(o), DatetimeIndexOpsMixin):
                         err = TypeError

From 02de253f9ce53ba1ec48a5f7baa904fdcb25942b Mon Sep 17 00:00:00 2001
From: shubchat <shub.chat@gmail.com>
Date: Wed, 22 Jan 2020 06:45:34 +1100
Subject: [PATCH 9/9] other edits for CI

---
 pandas/tests/base/test_ops.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/tests/base/test_ops.py b/pandas/tests/base/test_ops.py
index b02e9f0b38c86..08ec57bd69ad4 100644
--- a/pandas/tests/base/test_ops.py
+++ b/pandas/tests/base/test_ops.py
@@ -123,7 +123,7 @@ def check_ops_properties(self, props, filter=None, ignore_failures=False):
 
                     # an object that is datetimelike will raise a TypeError,
                     # otherwise an AttributeError
-                    msg = "object has no attribute 'year'"
+                    msg = "no attribute"
                     err = AttributeError
                     if issubclass(type(o), DatetimeIndexOpsMixin):
                         err = TypeError