1 files changed, 52 insertions, 29 deletions
diff --git a/test/orm/test_cascade.py b/test/orm/test_cascade.py
index 9aaf76592..1cd9d344f 100644
--- a/test/orm/test_cascade.py
+++ b/test/orm/test_cascade.py
@@ -1,32 +1,32 @@
 import copy
 
-from sqlalchemy.testing import assert_raises, assert_raises_message
-from sqlalchemy import (
-    Integer,
-    String,
-    ForeignKey,
-    exc as sa_exc,
-    util,
-    select,
-    func,
-)
-from sqlalchemy.testing.schema import Table, Column
-from sqlalchemy.orm import (
-    mapper,
-    relationship,
-    create_session,
-    sessionmaker,
-    class_mapper,
-    backref,
-    Session,
-    util as orm_util,
-    configure_mappers,
-)
-from sqlalchemy.orm.attributes import instance_state
-from sqlalchemy.orm import attributes, exc as orm_exc, object_mapper
+from sqlalchemy import exc as sa_exc
+from sqlalchemy import ForeignKey
+from sqlalchemy import func
+from sqlalchemy import Integer
+from sqlalchemy import select
+from sqlalchemy import String
 from sqlalchemy import testing
+from sqlalchemy import util
+from sqlalchemy.orm import attributes
+from sqlalchemy.orm import backref
+from sqlalchemy.orm import class_mapper
+from sqlalchemy.orm import configure_mappers
+from sqlalchemy.orm import create_session
+from sqlalchemy.orm import exc as orm_exc
+from sqlalchemy.orm import mapper
+from sqlalchemy.orm import object_mapper
+from sqlalchemy.orm import relationship
+from sqlalchemy.orm import Session
+from sqlalchemy.orm import sessionmaker
+from sqlalchemy.orm import util as orm_util
+from sqlalchemy.orm.attributes import instance_state
+from sqlalchemy.testing import assert_raises
+from sqlalchemy.testing import assert_raises_message
 from sqlalchemy.testing import eq_
 from sqlalchemy.testing import fixtures
+from sqlalchemy.testing.schema import Column
+from sqlalchemy.testing.schema import Table
 from test.orm import _fixtures
 
 
@@ -226,7 +226,16 @@ class O2MCascadeDeleteOrphanTest(fixtures.MappedTest):
 
     @classmethod
     def setup_mappers(cls):
-        users, Dingaling, Order, User, dingalings, Address, orders, addresses = (
+        (
+            users,
+            Dingaling,
+            Order,
+            User,
+            dingalings,
+            Address,
+            orders,
+            addresses,
+        ) = (
             cls.tables.users,
             cls.classes.Dingaling,
             cls.classes.Order,
@@ -2145,8 +2154,8 @@ class M2MCascadeTest(fixtures.MappedTest):
             A,
             a,
             properties={
-                # if no backref here, delete-orphan failed until [ticket:427] was
-                # fixed
+                # if no backref here, delete-orphan failed until #
+                # [ticket:427] was fixed
                 "bs": relationship(
                     B,
                     secondary=atob,
@@ -3821,7 +3830,14 @@ class SubclassCascadeTest(fixtures.DeclarativeMappedTest):
             __mapper_args__ = {"polymorphic_identity": "java_language"}
 
     def test_cascade_iterator_polymorphic(self):
-        Company, Employee, Engineer, Language, JavaLanguage, MavenBuild = self.classes(
+        (
+            Company,
+            Employee,
+            Engineer,
+            Language,
+            JavaLanguage,
+            MavenBuild,
+        ) = self.classes(
             "Company",
             "Employee",
             "Engineer",
@@ -3854,7 +3870,14 @@ class SubclassCascadeTest(fixtures.DeclarativeMappedTest):
         eq_(set([rec[0] for rec in it]), set([maven_build, lang]))
 
     def test_delete_orphan_round_trip(self):
-        Company, Employee, Engineer, Language, JavaLanguage, MavenBuild = self.classes(
+        (
+            Company,
+            Employee,
+            Engineer,
+            Language,
+            JavaLanguage,
+            MavenBuild,
+        ) = self.classes(
             "Company",
             "Employee",
             "Engineer",