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, 18 insertions, 20 deletions

diff --git a/examples/versioned_rows/versioned_update_old_row.py b/examples/versioned_rows/versioned_update_old_row.py
index 17c82fdc3..5aa0f424a 100644
--- a/examples/versioned_rows/versioned_update_old_row.py
+++ b/examples/versioned_rows/versioned_update_old_row.py
@@ -5,29 +5,27 @@ to only the most recent version.
 
 """
 
-from sqlalchemy import (
-    create_engine,
-    Integer,
-    String,
-    event,
-    Column,
-    DateTime,
-    inspect,
-    literal,
-)
-from sqlalchemy.orm import (
-    make_transient,
-    Session,
-    relationship,
-    attributes,
-    backref,
-    make_transient_to_detached,
-    Query,
-)
-from sqlalchemy.ext.declarative import declarative_base
 import datetime
 import time
 
+from sqlalchemy import Column
+from sqlalchemy import create_engine
+from sqlalchemy import DateTime
+from sqlalchemy import event
+from sqlalchemy import inspect
+from sqlalchemy import Integer
+from sqlalchemy import literal
+from sqlalchemy import String
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import attributes
+from sqlalchemy.orm import backref
+from sqlalchemy.orm import make_transient
+from sqlalchemy.orm import make_transient_to_detached
+from sqlalchemy.orm import Query
+from sqlalchemy.orm import relationship
+from sqlalchemy.orm import Session
+
+
 Base = declarative_base()
 
 # this will be the current time as the test runs