Post black reformatting

Applied on top of a pure run of black -l 79 in
I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9,  this set of changes
resolves all remaining flake8 conditions for those codes
we have enabled in setup.cfg.

Included are resolutions for all remaining flake8 issues
including shadowed builtins, long lines, import order, unused
imports, duplicate imports, and docstring issues.

Change-Id: I4f72d3ba1380dd601610ff80b8fb06a2aff8b0fe

1 files changed, 10 insertions, 14 deletions

diff --git a/test/orm/test_hasparent.py b/test/orm/test_hasparent.py
index fe5e05a17..d3a2bf203 100644
--- a/test/orm/test_hasparent.py
+++ b/test/orm/test_hasparent.py
@@ -1,23 +1,19 @@
 """test the current state of the hasparent() flag."""
 
 
-from sqlalchemy.testing import assert_raises, assert_raises_message
-from sqlalchemy import Integer, String, ForeignKey, Sequence, exc as sa_exc
-from sqlalchemy.testing.schema import Table, Column
-from sqlalchemy.orm import (
-    mapper,
-    relationship,
-    create_session,
-    sessionmaker,
-    class_mapper,
-    backref,
-    Session,
-)
-from sqlalchemy.orm import attributes, exc as orm_exc
+from sqlalchemy import ForeignKey
+from sqlalchemy import Integer
 from sqlalchemy import testing
+from sqlalchemy.orm import attributes
+from sqlalchemy.orm import exc as orm_exc
+from sqlalchemy.orm import mapper
+from sqlalchemy.orm import relationship
+from sqlalchemy.orm import Session
+from sqlalchemy.testing import assert_raises_message
 from sqlalchemy.testing import eq_
 from sqlalchemy.testing import fixtures
-from test.orm import _fixtures
+from sqlalchemy.testing.schema import Column
+from sqlalchemy.testing.schema import Table
 from sqlalchemy.testing.util import gc_collect