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, 11 insertions, 11 deletions

diff --git a/examples/nested_sets/nested_sets.py b/examples/nested_sets/nested_sets.py
index 705a3d279..ba45231ce 100644
--- a/examples/nested_sets/nested_sets.py
+++ b/examples/nested_sets/nested_sets.py
@@ -4,18 +4,18 @@ http://www.intelligententerprise.com/001020/celko.jhtml
 
 """
 
-from sqlalchemy import (
-    create_engine,
-    Column,
-    Integer,
-    String,
-    select,
-    case,
-    func,
-)
-from sqlalchemy.orm import Session, aliased
-from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy import case
+from sqlalchemy import Column
+from sqlalchemy import create_engine
 from sqlalchemy import event
+from sqlalchemy import func
+from sqlalchemy import Integer
+from sqlalchemy import select
+from sqlalchemy import String
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import aliased
+from sqlalchemy.orm import Session
+
 
 Base = declarative_base()