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, 20 insertions, 23 deletions

diff --git a/test/engine/test_transaction.py b/test/engine/test_transaction.py
index ad2f29fa0..136468329 100644
--- a/test/engine/test_transaction.py
+++ b/test/engine/test_transaction.py
@@ -1,30 +1,27 @@
-from sqlalchemy.testing import (
-    eq_,
-    assert_raises,
-    assert_raises_message,
-    ne_,
-    expect_warnings,
-)
 import sys
+
+from sqlalchemy import create_engine
 from sqlalchemy import event
-from sqlalchemy.testing.engines import testing_engine
-from sqlalchemy import (
-    create_engine,
-    MetaData,
-    INT,
-    VARCHAR,
-    Sequence,
-    select,
-    Integer,
-    String,
-    func,
-    text,
-    exc,
-)
-from sqlalchemy.testing.schema import Table
-from sqlalchemy.testing.schema import Column
+from sqlalchemy import exc
+from sqlalchemy import func
+from sqlalchemy import INT
+from sqlalchemy import Integer
+from sqlalchemy import MetaData
+from sqlalchemy import select
+from sqlalchemy import Sequence
+from sqlalchemy import String
 from sqlalchemy import testing
+from sqlalchemy import text
+from sqlalchemy import VARCHAR
+from sqlalchemy.testing import assert_raises
+from sqlalchemy.testing import assert_raises_message
+from sqlalchemy.testing import eq_
+from sqlalchemy.testing import expect_warnings
 from sqlalchemy.testing import fixtures
+from sqlalchemy.testing import ne_
+from sqlalchemy.testing.engines import testing_engine
+from sqlalchemy.testing.schema import Column
+from sqlalchemy.testing.schema import Table
 
 
 users, metadata = None, None