From 67088cf141f122eed537d92e50b764158c995fab Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Mon, 25 Jul 2022 22:58:37 +0530
Subject: [PATCH 01/14] Revert "addressing reviews CL#1"

This reverts commit 69dc2d43875c5ffc307b829397612a66b0549316.
---
 pandas/_libs/tslibs/parsing.pyx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/_libs/tslibs/parsing.pyx b/pandas/_libs/tslibs/parsing.pyx
index 5cb11436f6f45..266ab63d957e0 100644
--- a/pandas/_libs/tslibs/parsing.pyx
+++ b/pandas/_libs/tslibs/parsing.pyx
@@ -282,7 +282,7 @@ def parse_datetime_string(
         pass
 
     try:
-        dt = du_parse(date_string, default=_DEFAULT_DATETIME,
+            dt = du_parse(date_string, default=_DEFAULT_DATETIME,
                       dayfirst=dayfirst, yearfirst=yearfirst, **kwargs)
     except TypeError:
         # following may be raised from dateutil

From 893fceb52af889e9ca2aac962dd08be3608aaf77 Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Tue, 26 Jul 2022 00:35:35 +0530
Subject: [PATCH 02/14] improving OutOfBoundsDatetime exception messages

---
 pandas/_libs/tslib.pyx                 |  4 ++--
 pandas/tests/tools/test_to_datetime.py | 11 ++++++-----
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/pandas/_libs/tslib.pyx b/pandas/_libs/tslib.pyx
index 9c7f35d240f96..b6a393c7e0bd4 100644
--- a/pandas/_libs/tslib.pyx
+++ b/pandas/_libs/tslib.pyx
@@ -664,11 +664,11 @@ cpdef array_to_datetime(
 
                         # Still raise OutOfBoundsDatetime,
                         # as error message is informative.
-                        raise
+                        raise OutOfBoundsDatetime(f"Cannot convert \"{val}\" at position {i} to datetime")
 
                     assert is_ignore
                     return values, tz_out
-                raise
+                raise OutOfBoundsDatetime(f"Cannot convert \"{val}\" at position {i} to datetime")
 
     except OutOfBoundsDatetime:
         if is_raise:
diff --git a/pandas/tests/tools/test_to_datetime.py b/pandas/tests/tools/test_to_datetime.py
index afa06bf1a79af..cc02502656e95 100644
--- a/pandas/tests/tools/test_to_datetime.py
+++ b/pandas/tests/tools/test_to_datetime.py
@@ -688,9 +688,10 @@ def test_to_datetime_dt64s(self, cache, dt):
         "dt", [np.datetime64("1000-01-01"), np.datetime64("5000-01-02")]
     )
     def test_to_datetime_dt64s_out_of_bounds(self, cache, dt):
-        msg = f"Out of bounds nanosecond timestamp: {dt}"
+        msg = f"Cannot convert \"{dt}\" at position 0 to datetime"
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             to_datetime(dt, errors="raise")
+        msg = f"Out of bounds nanosecond timestamp: {dt}"
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             Timestamp(dt)
         assert to_datetime(dt, errors="coerce", cache=cache) is NaT
@@ -973,13 +974,13 @@ def test_datetime_outofbounds_scalar(self, value, format, infer):
         assert res is NaT
 
         if format is not None:
-            msg = "is a bad directive in format|Out of bounds nanosecond timestamp"
+            msg = f"is a bad directive in format|Cannot convert \"{value}\" at position 0 to datetime"
             with pytest.raises(ValueError, match=msg):
                 to_datetime(
                     value, errors="raise", format=format, infer_datetime_format=infer
                 )
         else:
-            msg = "Out of bounds nanosecond timestamp"
+            msg = f"Cannot convert \"{value}\" at position 0 to datetime"
             with pytest.raises(OutOfBoundsDatetime, match=msg):
                 to_datetime(
                     value, errors="raise", format=format, infer_datetime_format=infer
@@ -1700,7 +1701,7 @@ def test_to_datetime_barely_out_of_bounds(self):
         # in an in-bounds datetime
         arr = np.array(["2262-04-11 23:47:16.854775808"], dtype=object)
 
-        msg = "Out of bounds nanosecond timestamp"
+        msg = f"Cannot convert \"2262-04-11 23:47:16.854775808\" at position 0 to datetime"
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             to_datetime(arr)
 
@@ -2593,7 +2594,7 @@ def test_invalid_origins_tzinfo(self):
     @pytest.mark.parametrize("format", [None, "%Y-%m-%d %H:%M:%S"])
     def test_to_datetime_out_of_bounds_with_format_arg(self, format):
         # see gh-23830
-        msg = "Out of bounds nanosecond timestamp"
+        msg = f"Cannot convert \"2417-10-27 00:00:00\" at position 0 to datetime"
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             to_datetime("2417-10-27 00:00:00", format=format)
 

From 682e4bbde13d9c7b75bff5653c53cd33a0576c5b Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Tue, 26 Jul 2022 00:53:15 +0530
Subject: [PATCH 03/14] improving OutOfBoundsDatetime exception messages

---
 pandas/_libs/tslibs/parsing.pyx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/_libs/tslibs/parsing.pyx b/pandas/_libs/tslibs/parsing.pyx
index 266ab63d957e0..5cb11436f6f45 100644
--- a/pandas/_libs/tslibs/parsing.pyx
+++ b/pandas/_libs/tslibs/parsing.pyx
@@ -282,7 +282,7 @@ def parse_datetime_string(
         pass
 
     try:
-            dt = du_parse(date_string, default=_DEFAULT_DATETIME,
+        dt = du_parse(date_string, default=_DEFAULT_DATETIME,
                       dayfirst=dayfirst, yearfirst=yearfirst, **kwargs)
     except TypeError:
         # following may be raised from dateutil

From 26f7d1fdf880771086feabba67def9633171b49a Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Tue, 26 Jul 2022 11:48:01 +0530
Subject: [PATCH 04/14] improving OutOfBoundsDatetime exception messages

---
 pandas/tests/arrays/categorical/test_take.py        |  2 +-
 pandas/tests/base/test_constructors.py              |  3 ++-
 pandas/tests/indexes/datetimes/test_constructors.py |  2 +-
 .../tests/indexes/datetimes/test_scalar_compat.py   |  2 +-
 pandas/tests/tools/test_to_datetime.py              | 13 ++++++++-----
 pandas/tests/tslibs/test_array_to_datetime.py       |  4 ++--
 6 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/pandas/tests/arrays/categorical/test_take.py b/pandas/tests/arrays/categorical/test_take.py
index fbdbea1dae3b2..8d1727b59dc5b 100644
--- a/pandas/tests/arrays/categorical/test_take.py
+++ b/pandas/tests/arrays/categorical/test_take.py
@@ -29,7 +29,7 @@ def test_take_bounds(self, allow_fill):
         if allow_fill:
             msg = "indices are out-of-bounds"
         else:
-            msg = "index 4 is out of bounds for( axis 0 with)? size 3"
+            msg = "index 4 is  for( axis 0 with)? size 3"
         with pytest.raises(IndexError, match=msg):
             cat.take([4, 5], allow_fill=allow_fill)
 
diff --git a/pandas/tests/base/test_constructors.py b/pandas/tests/base/test_constructors.py
index 44d6bc57b0431..adad960b67128 100644
--- a/pandas/tests/base/test_constructors.py
+++ b/pandas/tests/base/test_constructors.py
@@ -157,7 +157,8 @@ def test_constructor_datetime_outofbound(self, a, klass):
 
         # Explicit dtype specified
         # Forced conversion fails for all -> all cases raise error
-        msg = "Out of bounds"
+        msg = "Out of bounds|" \
+            f"Cannot convert \"{a[0]}\" at position 0 to datetime"
         with pytest.raises(pd.errors.OutOfBoundsDatetime, match=msg):
             klass(a, dtype="datetime64[ns]")
 
diff --git a/pandas/tests/indexes/datetimes/test_constructors.py b/pandas/tests/indexes/datetimes/test_constructors.py
index e971e311e7d20..449bf75ae46fe 100644
--- a/pandas/tests/indexes/datetimes/test_constructors.py
+++ b/pandas/tests/indexes/datetimes/test_constructors.py
@@ -521,7 +521,7 @@ def test_construction_outofbounds(self):
         # coerces to object
         tm.assert_index_equal(Index(dates), exp)
 
-        msg = "Out of bounds nanosecond timestamp"
+        msg = f'Cannot convert "{dates[0]}" at position 0 to datetime'
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             # can't create DatetimeIndex
             DatetimeIndex(dates)
diff --git a/pandas/tests/indexes/datetimes/test_scalar_compat.py b/pandas/tests/indexes/datetimes/test_scalar_compat.py
index c60e56875bfcd..50901f9ac3ac5 100644
--- a/pandas/tests/indexes/datetimes/test_scalar_compat.py
+++ b/pandas/tests/indexes/datetimes/test_scalar_compat.py
@@ -38,7 +38,7 @@ def test_dti_date(self):
     @pytest.mark.parametrize("data", [["1400-01-01"], [datetime(1400, 1, 1)]])
     def test_dti_date_out_of_range(self, data):
         # GH#1475
-        msg = "Out of bounds nanosecond timestamp: 1400-01-01 00:00:00"
+        msg = f'Cannot convert "{data[0]}" at position 0 to datetime'
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             DatetimeIndex(data)
 
diff --git a/pandas/tests/tools/test_to_datetime.py b/pandas/tests/tools/test_to_datetime.py
index cc02502656e95..ba3ba087ef346 100644
--- a/pandas/tests/tools/test_to_datetime.py
+++ b/pandas/tests/tools/test_to_datetime.py
@@ -688,7 +688,7 @@ def test_to_datetime_dt64s(self, cache, dt):
         "dt", [np.datetime64("1000-01-01"), np.datetime64("5000-01-02")]
     )
     def test_to_datetime_dt64s_out_of_bounds(self, cache, dt):
-        msg = f"Cannot convert \"{dt}\" at position 0 to datetime"
+        msg = f'Cannot convert "{dt}" at position 0 to datetime'
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             to_datetime(dt, errors="raise")
         msg = f"Out of bounds nanosecond timestamp: {dt}"
@@ -974,13 +974,16 @@ def test_datetime_outofbounds_scalar(self, value, format, infer):
         assert res is NaT
 
         if format is not None:
-            msg = f"is a bad directive in format|Cannot convert \"{value}\" at position 0 to datetime"
+            msg = (
+                "is a bad directive in format|"
+                f'Cannot convert "{value}" at position 0 to datetime'
+            )
             with pytest.raises(ValueError, match=msg):
                 to_datetime(
                     value, errors="raise", format=format, infer_datetime_format=infer
                 )
         else:
-            msg = f"Cannot convert \"{value}\" at position 0 to datetime"
+            msg = f'Cannot convert "{value}" at position 0 to datetime'
             with pytest.raises(OutOfBoundsDatetime, match=msg):
                 to_datetime(
                     value, errors="raise", format=format, infer_datetime_format=infer
@@ -1701,7 +1704,7 @@ def test_to_datetime_barely_out_of_bounds(self):
         # in an in-bounds datetime
         arr = np.array(["2262-04-11 23:47:16.854775808"], dtype=object)
 
-        msg = f"Cannot convert \"2262-04-11 23:47:16.854775808\" at position 0 to datetime"
+        msg = 'Cannot convert "2262-04-11 23:47:16.854775808" at position 0 to datetime'
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             to_datetime(arr)
 
@@ -2594,7 +2597,7 @@ def test_invalid_origins_tzinfo(self):
     @pytest.mark.parametrize("format", [None, "%Y-%m-%d %H:%M:%S"])
     def test_to_datetime_out_of_bounds_with_format_arg(self, format):
         # see gh-23830
-        msg = f"Cannot convert \"2417-10-27 00:00:00\" at position 0 to datetime"
+        msg = 'Cannot convert "2417-10-27 00:00:00" at position 0 to datetime'
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             to_datetime("2417-10-27 00:00:00", format=format)
 
diff --git a/pandas/tests/tslibs/test_array_to_datetime.py b/pandas/tests/tslibs/test_array_to_datetime.py
index a0fafc227e001..fa3e08ba761fc 100644
--- a/pandas/tests/tslibs/test_array_to_datetime.py
+++ b/pandas/tests/tslibs/test_array_to_datetime.py
@@ -125,7 +125,7 @@ def test_coerce_outside_ns_bounds(invalid_date, errors):
     kwargs = {"values": arr, "errors": errors}
 
     if errors == "raise":
-        msg = "Out of bounds nanosecond timestamp"
+        msg = f'Cannot convert "{arr[0]}" at position 0 to datetime'
 
         with pytest.raises(ValueError, match=msg):
             tslib.array_to_datetime(**kwargs)
@@ -170,7 +170,7 @@ def test_to_datetime_barely_out_of_bounds():
     # Close enough to bounds that dropping nanos
     # would result in an in-bounds datetime.
     arr = np.array(["2262-04-11 23:47:16.854775808"], dtype=object)
-    msg = "Out of bounds nanosecond timestamp: 2262-04-11 23:47:16"
+    msg = f'Cannot convert "{arr[0]}" at position 0 to datetime'
 
     with pytest.raises(tslib.OutOfBoundsDatetime, match=msg):
         tslib.array_to_datetime(arr)

From e27dc9a4ae61d1df4dc7cc1e0dd882aaa4f70e06 Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Tue, 26 Jul 2022 11:52:57 +0530
Subject: [PATCH 05/14] improving OutOfBoundsDatetime exception messages

---
 pandas/tests/base/test_constructors.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/pandas/tests/base/test_constructors.py b/pandas/tests/base/test_constructors.py
index adad960b67128..a607bc413159e 100644
--- a/pandas/tests/base/test_constructors.py
+++ b/pandas/tests/base/test_constructors.py
@@ -157,8 +157,7 @@ def test_constructor_datetime_outofbound(self, a, klass):
 
         # Explicit dtype specified
         # Forced conversion fails for all -> all cases raise error
-        msg = "Out of bounds|" \
-            f"Cannot convert \"{a[0]}\" at position 0 to datetime"
+        msg = f'Out of bounds|Cannot convert "{a[0]}" at position 0 to datetime'
         with pytest.raises(pd.errors.OutOfBoundsDatetime, match=msg):
             klass(a, dtype="datetime64[ns]")
 

From e6435fb63277c00b055870f00a68e16fe34ec874 Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Tue, 26 Jul 2022 12:36:34 +0530
Subject: [PATCH 06/14] improving OutOfBoundsDatetime exception messages

---
 pandas/tests/arrays/categorical/test_take.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/tests/arrays/categorical/test_take.py b/pandas/tests/arrays/categorical/test_take.py
index 8d1727b59dc5b..0b4f54487ec79 100644
--- a/pandas/tests/arrays/categorical/test_take.py
+++ b/pandas/tests/arrays/categorical/test_take.py
@@ -29,7 +29,7 @@ def test_take_bounds(self, allow_fill):
         if allow_fill:
             msg = "indices are out-of-bounds"
         else:
-            msg = "index 4 is  for( axis 0 with)? size 3"
+            msg = "index 4 is out of bounds for axis 0 with size 3"
         with pytest.raises(IndexError, match=msg):
             cat.take([4, 5], allow_fill=allow_fill)
 

From fbb3e37cd13ba458a0dd5206ab78766207b38a4b Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Tue, 26 Jul 2022 14:12:34 +0530
Subject: [PATCH 07/14] testcase update

---
 pandas/tests/arrays/categorical/test_take.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/tests/arrays/categorical/test_take.py b/pandas/tests/arrays/categorical/test_take.py
index 0b4f54487ec79..fbdbea1dae3b2 100644
--- a/pandas/tests/arrays/categorical/test_take.py
+++ b/pandas/tests/arrays/categorical/test_take.py
@@ -29,7 +29,7 @@ def test_take_bounds(self, allow_fill):
         if allow_fill:
             msg = "indices are out-of-bounds"
         else:
-            msg = "index 4 is out of bounds for axis 0 with size 3"
+            msg = "index 4 is out of bounds for( axis 0 with)? size 3"
         with pytest.raises(IndexError, match=msg):
             cat.take([4, 5], allow_fill=allow_fill)
 

From 2a969918626078887dbe1250b8cd227b264aaa35 Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Wed, 27 Jul 2022 04:01:44 +0530
Subject: [PATCH 08/14] improving OutOfBoundsDatetime exception messages

---
 pandas/_libs/tslib.pyx | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pandas/_libs/tslib.pyx b/pandas/_libs/tslib.pyx
index b6a393c7e0bd4..ec6ebdd3b01cc 100644
--- a/pandas/_libs/tslib.pyx
+++ b/pandas/_libs/tslib.pyx
@@ -652,7 +652,7 @@ cpdef array_to_datetime(
                     else:
                         raise TypeError(f"{type(val)} is not convertible to datetime")
 
-            except OutOfBoundsDatetime:
+            except OutOfBoundsDatetime as ex:
                 if is_coerce:
                     iresult[i] = NPY_NAT
                     continue
@@ -664,11 +664,11 @@ cpdef array_to_datetime(
 
                         # Still raise OutOfBoundsDatetime,
                         # as error message is informative.
-                        raise OutOfBoundsDatetime(f"Cannot convert \"{val}\" at position {i} to datetime")
+                        raise OutOfBoundsDatetime(f"Cannot convert \"{val}\" at position {i} to datetime") from ex
 
                     assert is_ignore
                     return values, tz_out
-                raise OutOfBoundsDatetime(f"Cannot convert \"{val}\" at position {i} to datetime")
+                raise OutOfBoundsDatetime(f"Cannot convert \"{val}\" at position {i} to datetime") from ex
 
     except OutOfBoundsDatetime:
         if is_raise:

From 765049b513fe96d95ac6fd47c4fabe5965c0ed50 Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Thu, 28 Jul 2022 16:48:24 +0530
Subject: [PATCH 09/14] review comments improving OutOfBoundsDatetime exception
 messages

---
 pandas/_libs/tslib.pyx                               |  5 +++--
 pandas/tests/base/test_constructors.py               |  2 +-
 pandas/tests/indexes/datetimes/test_constructors.py  |  2 +-
 pandas/tests/indexes/datetimes/test_scalar_compat.py |  2 +-
 pandas/tests/tools/test_to_datetime.py               | 10 +++++-----
 pandas/tests/tslibs/test_array_to_datetime.py        |  4 ++--
 6 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/pandas/_libs/tslib.pyx b/pandas/_libs/tslib.pyx
index ec6ebdd3b01cc..b3e51191e8efa 100644
--- a/pandas/_libs/tslib.pyx
+++ b/pandas/_libs/tslib.pyx
@@ -653,6 +653,7 @@ cpdef array_to_datetime(
                         raise TypeError(f"{type(val)} is not convertible to datetime")
 
             except OutOfBoundsDatetime as ex:
+                ex.args = (str(ex) + f" present at position {i}", )
                 if is_coerce:
                     iresult[i] = NPY_NAT
                     continue
@@ -664,11 +665,11 @@ cpdef array_to_datetime(
 
                         # Still raise OutOfBoundsDatetime,
                         # as error message is informative.
-                        raise OutOfBoundsDatetime(f"Cannot convert \"{val}\" at position {i} to datetime") from ex
+                        raise
 
                     assert is_ignore
                     return values, tz_out
-                raise OutOfBoundsDatetime(f"Cannot convert \"{val}\" at position {i} to datetime") from ex
+                raise
 
     except OutOfBoundsDatetime:
         if is_raise:
diff --git a/pandas/tests/base/test_constructors.py b/pandas/tests/base/test_constructors.py
index a607bc413159e..858eaacd67ec2 100644
--- a/pandas/tests/base/test_constructors.py
+++ b/pandas/tests/base/test_constructors.py
@@ -157,7 +157,7 @@ def test_constructor_datetime_outofbound(self, a, klass):
 
         # Explicit dtype specified
         # Forced conversion fails for all -> all cases raise error
-        msg = f'Out of bounds|Cannot convert "{a[0]}" at position 0 to datetime'
+        msg = "Out of bounds|Out of bounds .* present at position 0"
         with pytest.raises(pd.errors.OutOfBoundsDatetime, match=msg):
             klass(a, dtype="datetime64[ns]")
 
diff --git a/pandas/tests/indexes/datetimes/test_constructors.py b/pandas/tests/indexes/datetimes/test_constructors.py
index 449bf75ae46fe..086cb18dbe463 100644
--- a/pandas/tests/indexes/datetimes/test_constructors.py
+++ b/pandas/tests/indexes/datetimes/test_constructors.py
@@ -521,7 +521,7 @@ def test_construction_outofbounds(self):
         # coerces to object
         tm.assert_index_equal(Index(dates), exp)
 
-        msg = f'Cannot convert "{dates[0]}" at position 0 to datetime'
+        msg = "Out of bounds .* present at position 0"
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             # can't create DatetimeIndex
             DatetimeIndex(dates)
diff --git a/pandas/tests/indexes/datetimes/test_scalar_compat.py b/pandas/tests/indexes/datetimes/test_scalar_compat.py
index 50901f9ac3ac5..890590094094a 100644
--- a/pandas/tests/indexes/datetimes/test_scalar_compat.py
+++ b/pandas/tests/indexes/datetimes/test_scalar_compat.py
@@ -38,7 +38,7 @@ def test_dti_date(self):
     @pytest.mark.parametrize("data", [["1400-01-01"], [datetime(1400, 1, 1)]])
     def test_dti_date_out_of_range(self, data):
         # GH#1475
-        msg = f'Cannot convert "{data[0]}" at position 0 to datetime'
+        msg = "Out of bounds .* present at position 0"
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             DatetimeIndex(data)
 
diff --git a/pandas/tests/tools/test_to_datetime.py b/pandas/tests/tools/test_to_datetime.py
index ba3ba087ef346..ea51bbd6e9ac1 100644
--- a/pandas/tests/tools/test_to_datetime.py
+++ b/pandas/tests/tools/test_to_datetime.py
@@ -688,7 +688,7 @@ def test_to_datetime_dt64s(self, cache, dt):
         "dt", [np.datetime64("1000-01-01"), np.datetime64("5000-01-02")]
     )
     def test_to_datetime_dt64s_out_of_bounds(self, cache, dt):
-        msg = f'Cannot convert "{dt}" at position 0 to datetime'
+        msg = "Out of bounds .* present at position 0"
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             to_datetime(dt, errors="raise")
         msg = f"Out of bounds nanosecond timestamp: {dt}"
@@ -976,14 +976,14 @@ def test_datetime_outofbounds_scalar(self, value, format, infer):
         if format is not None:
             msg = (
                 "is a bad directive in format|"
-                f'Cannot convert "{value}" at position 0 to datetime'
+                "Out of bounds .* present at position 0"
             )
             with pytest.raises(ValueError, match=msg):
                 to_datetime(
                     value, errors="raise", format=format, infer_datetime_format=infer
                 )
         else:
-            msg = f'Cannot convert "{value}" at position 0 to datetime'
+            msg = "Out of bounds .* present at position 0"
             with pytest.raises(OutOfBoundsDatetime, match=msg):
                 to_datetime(
                     value, errors="raise", format=format, infer_datetime_format=infer
@@ -1704,7 +1704,7 @@ def test_to_datetime_barely_out_of_bounds(self):
         # in an in-bounds datetime
         arr = np.array(["2262-04-11 23:47:16.854775808"], dtype=object)
 
-        msg = 'Cannot convert "2262-04-11 23:47:16.854775808" at position 0 to datetime'
+        msg = "Out of bounds .* present at position 0"
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             to_datetime(arr)
 
@@ -2597,7 +2597,7 @@ def test_invalid_origins_tzinfo(self):
     @pytest.mark.parametrize("format", [None, "%Y-%m-%d %H:%M:%S"])
     def test_to_datetime_out_of_bounds_with_format_arg(self, format):
         # see gh-23830
-        msg = 'Cannot convert "2417-10-27 00:00:00" at position 0 to datetime'
+        msg = "Out of bounds nanosecond timestamp: 2417-10-27 00:00:00 present at position 0"
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             to_datetime("2417-10-27 00:00:00", format=format)
 
diff --git a/pandas/tests/tslibs/test_array_to_datetime.py b/pandas/tests/tslibs/test_array_to_datetime.py
index fa3e08ba761fc..3df65619d8449 100644
--- a/pandas/tests/tslibs/test_array_to_datetime.py
+++ b/pandas/tests/tslibs/test_array_to_datetime.py
@@ -125,7 +125,7 @@ def test_coerce_outside_ns_bounds(invalid_date, errors):
     kwargs = {"values": arr, "errors": errors}
 
     if errors == "raise":
-        msg = f'Cannot convert "{arr[0]}" at position 0 to datetime'
+        msg = "Out of bounds .* present at position 0"
 
         with pytest.raises(ValueError, match=msg):
             tslib.array_to_datetime(**kwargs)
@@ -170,7 +170,7 @@ def test_to_datetime_barely_out_of_bounds():
     # Close enough to bounds that dropping nanos
     # would result in an in-bounds datetime.
     arr = np.array(["2262-04-11 23:47:16.854775808"], dtype=object)
-    msg = f'Cannot convert "{arr[0]}" at position 0 to datetime'
+    msg = "Out of bounds .* present at position 0"
 
     with pytest.raises(tslib.OutOfBoundsDatetime, match=msg):
         tslib.array_to_datetime(arr)

From 6da730db81c0def9abc566f7320dd7f53dee0c2c Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Thu, 28 Jul 2022 20:16:32 +0530
Subject: [PATCH 10/14] testcase update

---
 pandas/tests/tools/test_to_datetime.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/pandas/tests/tools/test_to_datetime.py b/pandas/tests/tools/test_to_datetime.py
index ea51bbd6e9ac1..974f3ad9e253d 100644
--- a/pandas/tests/tools/test_to_datetime.py
+++ b/pandas/tests/tools/test_to_datetime.py
@@ -976,7 +976,7 @@ def test_datetime_outofbounds_scalar(self, value, format, infer):
         if format is not None:
             msg = (
                 "is a bad directive in format|"
-                "Out of bounds .* present at position 0"
+                + "Out of bounds .* present at position 0"
             )
             with pytest.raises(ValueError, match=msg):
                 to_datetime(
@@ -2597,7 +2597,10 @@ def test_invalid_origins_tzinfo(self):
     @pytest.mark.parametrize("format", [None, "%Y-%m-%d %H:%M:%S"])
     def test_to_datetime_out_of_bounds_with_format_arg(self, format):
         # see gh-23830
-        msg = "Out of bounds nanosecond timestamp: 2417-10-27 00:00:00 present at position 0"
+        msg = (
+            "Out of bounds nanosecond timestamp: 2417-10-27 00:00:00 "
+            + "present at position 0"
+        )
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             to_datetime("2417-10-27 00:00:00", format=format)
 

From 649c48b63a7863bc4ffa502375cd0b83d80bc029 Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Mon, 1 Aug 2022 18:46:15 +0530
Subject: [PATCH 11/14] addressed testcase review comments

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

diff --git a/pandas/tests/tslibs/test_array_to_datetime.py b/pandas/tests/tslibs/test_array_to_datetime.py
index 3df65619d8449..7ca7984230609 100644
--- a/pandas/tests/tslibs/test_array_to_datetime.py
+++ b/pandas/tests/tslibs/test_array_to_datetime.py
@@ -170,7 +170,7 @@ def test_to_datetime_barely_out_of_bounds():
     # Close enough to bounds that dropping nanos
     # would result in an in-bounds datetime.
     arr = np.array(["2262-04-11 23:47:16.854775808"], dtype=object)
-    msg = "Out of bounds .* present at position 0"
+    msg = "Out of bounds nanosecond timestamp: 2262-04-11 23:47:16 present at position 0"
 
     with pytest.raises(tslib.OutOfBoundsDatetime, match=msg):
         tslib.array_to_datetime(arr)

From 08860d40e18905670bea4f5d586248f5c4eb9956 Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Mon, 1 Aug 2022 19:48:12 +0530
Subject: [PATCH 12/14] Revert "testcase update"

This reverts commit 6da730db81c0def9abc566f7320dd7f53dee0c2c.
---
 pandas/tests/tools/test_to_datetime.py | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/pandas/tests/tools/test_to_datetime.py b/pandas/tests/tools/test_to_datetime.py
index 974f3ad9e253d..ea51bbd6e9ac1 100644
--- a/pandas/tests/tools/test_to_datetime.py
+++ b/pandas/tests/tools/test_to_datetime.py
@@ -976,7 +976,7 @@ def test_datetime_outofbounds_scalar(self, value, format, infer):
         if format is not None:
             msg = (
                 "is a bad directive in format|"
-                + "Out of bounds .* present at position 0"
+                "Out of bounds .* present at position 0"
             )
             with pytest.raises(ValueError, match=msg):
                 to_datetime(
@@ -2597,10 +2597,7 @@ def test_invalid_origins_tzinfo(self):
     @pytest.mark.parametrize("format", [None, "%Y-%m-%d %H:%M:%S"])
     def test_to_datetime_out_of_bounds_with_format_arg(self, format):
         # see gh-23830
-        msg = (
-            "Out of bounds nanosecond timestamp: 2417-10-27 00:00:00 "
-            + "present at position 0"
-        )
+        msg = "Out of bounds nanosecond timestamp: 2417-10-27 00:00:00 present at position 0"
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             to_datetime("2417-10-27 00:00:00", format=format)
 

From 5ab25f2496f2c05d741854fb12dd3606ca24e7ce Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Mon, 1 Aug 2022 21:17:43 +0530
Subject: [PATCH 13/14] precommit code format changes

---
 pandas/tests/tools/test_to_datetime.py        | 3 +--
 pandas/tests/tslibs/test_array_to_datetime.py | 4 +++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/pandas/tests/tools/test_to_datetime.py b/pandas/tests/tools/test_to_datetime.py
index ea51bbd6e9ac1..e31c15321d214 100644
--- a/pandas/tests/tools/test_to_datetime.py
+++ b/pandas/tests/tools/test_to_datetime.py
@@ -975,8 +975,7 @@ def test_datetime_outofbounds_scalar(self, value, format, infer):
 
         if format is not None:
             msg = (
-                "is a bad directive in format|"
-                "Out of bounds .* present at position 0"
+                "is a bad directive in format|" "Out of bounds .* present at position 0"
             )
             with pytest.raises(ValueError, match=msg):
                 to_datetime(
diff --git a/pandas/tests/tslibs/test_array_to_datetime.py b/pandas/tests/tslibs/test_array_to_datetime.py
index 7ca7984230609..64a45f6507810 100644
--- a/pandas/tests/tslibs/test_array_to_datetime.py
+++ b/pandas/tests/tslibs/test_array_to_datetime.py
@@ -170,7 +170,9 @@ def test_to_datetime_barely_out_of_bounds():
     # Close enough to bounds that dropping nanos
     # would result in an in-bounds datetime.
     arr = np.array(["2262-04-11 23:47:16.854775808"], dtype=object)
-    msg = "Out of bounds nanosecond timestamp: 2262-04-11 23:47:16 present at position 0"
+    msg = (
+        "Out of bounds nanosecond timestamp: 2262-04-11 23:47:16 present at position 0"
+    )
 
     with pytest.raises(tslib.OutOfBoundsDatetime, match=msg):
         tslib.array_to_datetime(arr)

From 057e04735902df8940c49247b9264c824084ebc5 Mon Sep 17 00:00:00 2001
From: dannyi96 <danielbcbs2@gmail.com>
Date: Mon, 1 Aug 2022 21:34:15 +0530
Subject: [PATCH 14/14] precommit code format changes

---
 pandas/tests/tools/test_to_datetime.py | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/pandas/tests/tools/test_to_datetime.py b/pandas/tests/tools/test_to_datetime.py
index e31c15321d214..b128838318ac0 100644
--- a/pandas/tests/tools/test_to_datetime.py
+++ b/pandas/tests/tools/test_to_datetime.py
@@ -974,9 +974,7 @@ def test_datetime_outofbounds_scalar(self, value, format, infer):
         assert res is NaT
 
         if format is not None:
-            msg = (
-                "is a bad directive in format|" "Out of bounds .* present at position 0"
-            )
+            msg = "is a bad directive in format|Out of bounds .* present at position 0"
             with pytest.raises(ValueError, match=msg):
                 to_datetime(
                     value, errors="raise", format=format, infer_datetime_format=infer
@@ -2596,7 +2594,10 @@ def test_invalid_origins_tzinfo(self):
     @pytest.mark.parametrize("format", [None, "%Y-%m-%d %H:%M:%S"])
     def test_to_datetime_out_of_bounds_with_format_arg(self, format):
         # see gh-23830
-        msg = "Out of bounds nanosecond timestamp: 2417-10-27 00:00:00 present at position 0"
+        msg = (
+            "Out of bounds nanosecond timestamp: 2417-10-27 00:00:00 "
+            "present at position 0"
+        )
         with pytest.raises(OutOfBoundsDatetime, match=msg):
             to_datetime("2417-10-27 00:00:00", format=format)