Merge "Replace raise_ with raise from" into main

1 files changed, 16 insertions, 25 deletions

diff --git a/lib/sqlalchemy/sql/schema.py b/lib/sqlalchemy/sql/schema.py
index cdd17f2c0..9b5005b5d 100644
--- a/lib/sqlalchemy/sql/schema.py
+++ b/lib/sqlalchemy/sql/schema.py
@@ -120,13 +120,10 @@ class SchemaItem(SchemaEventTarget, visitors.Visitable):
                 try:
                     spwd = item._set_parent_with_dispatch
                 except AttributeError as err:
-                    util.raise_(
-                        exc.ArgumentError(
-                            "'SchemaItem' object, such as a 'Column' or a "
-                            "'Constraint' expected, got %r" % item
-                        ),
-                        replace_context=err,
-                    )
+                    raise exc.ArgumentError(
+                        "'SchemaItem' object, such as a 'Column' or a "
+                        "'Constraint' expected, got %r" % item
+                    ) from err
                 else:
                     spwd(self, **kw)
 
@@ -1932,16 +1929,13 @@ class Column(DialectKWArgs, SchemaItem, ColumnClause):
                 *fk
             )
         except TypeError as err:
-            util.raise_(
-                TypeError(
-                    "Could not create a copy of this %r object.  "
-                    "Ensure the class includes a _constructor() "
-                    "attribute or method which accepts the "
-                    "standard Column constructor arguments, or "
-                    "references the Column class itself." % self.__class__
-                ),
-                from_=err,
-            )
+            raise TypeError(
+                "Could not create a copy of this %r object.  "
+                "Ensure the class includes a _constructor() "
+                "attribute or method which accepts the "
+                "standard Column constructor arguments, or "
+                "references the Column class itself." % self.__class__
+            ) from err
 
         c.table = selectable
         c._propagate_attrs = selectable._propagate_attrs
@@ -3647,14 +3641,11 @@ class ForeignKeyConstraint(ColumnCollectionConstraint):
         try:
             ColumnCollectionConstraint._set_parent(self, table)
         except KeyError as ke:
-            util.raise_(
-                exc.ArgumentError(
-                    "Can't create ForeignKeyConstraint "
-                    "on table '%s': no column "
-                    "named '%s' is present." % (table.description, ke.args[0])
-                ),
-                from_=ke,
-            )
+            raise exc.ArgumentError(
+                "Can't create ForeignKeyConstraint "
+                "on table '%s': no column "
+                "named '%s' is present." % (table.description, ke.args[0])
+            ) from ke
 
         for col, fk in zip(self.columns, self.elements):
             if not hasattr(fk, "parent") or fk.parent is not col: