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, 14 insertions, 12 deletions

diff --git a/examples/versioned_rows/versioned_map.py b/examples/versioned_rows/versioned_map.py
index 46bdbb783..9abbb3e09 100644
--- a/examples/versioned_rows/versioned_map.py
+++ b/examples/versioned_rows/versioned_map.py
@@ -28,20 +28,22 @@ those additional values.
 
 """
 
-from sqlalchemy import Column, String, Integer, ForeignKey, create_engine
-from sqlalchemy.ext.declarative import declarative_base
-from sqlalchemy.orm import (
-    attributes,
-    relationship,
-    backref,
-    sessionmaker,
-    make_transient,
-    validates,
-    Session,
-)
+from sqlalchemy import Column
+from sqlalchemy import create_engine
+from sqlalchemy import event
+from sqlalchemy import ForeignKey
+from sqlalchemy import Integer
+from sqlalchemy import String
 from sqlalchemy.ext.associationproxy import association_proxy
+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 relationship
+from sqlalchemy.orm import Session
+from sqlalchemy.orm import sessionmaker
+from sqlalchemy.orm import validates
 from sqlalchemy.orm.collections import attribute_mapped_collection
-from sqlalchemy import event
 
 
 @event.listens_for(Session, "before_flush")