Add error message for tz_localize

Author: Sumanau Sareen

pandas/_libs/tslibs/conversion.pyx

@@ -502,10 +502,14 @@ cdef inline check_overflows(_TSObject obj):
     # GH#12677
     if obj.dts.year == 1677:
         if not (obj.value < 0):
-            raise OutOfBoundsDatetime
+            raise OutOfBoundsDatetime(
+                f'Timestamp cannot be converted within implementation bounds'
+            )
     elif obj.dts.year == 2262:
         if not (obj.value > 0):
-            raise OutOfBoundsDatetime
+            raise OutOfBoundsDatetime(
+                f'Timestamp cannot be converted within implementation bounds'
+            )
 
 
 # ----------------------------------------------------------------------

pandas/tests/scalar/timestamp/test_timezones.py

@@ -27,14 +27,20 @@ def test_tz_localize_pushes_out_of_bounds(self):
         assert pac.value > Timestamp.min.value
         pac.tz_convert("Asia/Tokyo")  # tz_convert doesn't change value
         with pytest.raises(OutOfBoundsDatetime):
-            Timestamp.min.tz_localize("Asia/Tokyo")
+            Timestamp.min.tz_localize(
+                "Asia/Tokyo",
+                match="Timestamp cannot be converted within implementation bounds",
+            )
 
         # tz_localize that pushes away from the boundary is OK
         tokyo = Timestamp.max.tz_localize("Asia/Tokyo")
         assert tokyo.value < Timestamp.max.value
         tokyo.tz_convert("US/Pacific")  # tz_convert doesn't change value
         with pytest.raises(OutOfBoundsDatetime):
-            Timestamp.max.tz_localize("US/Pacific")
+            Timestamp.max.tz_localize(
+                "US/Pacific",
+                match="Timestamp cannot be converted within implementation bounds",
+            )
 
     def test_tz_localize_ambiguous_bool(self):
         # make sure that we are correctly accepting bool values as ambiguous