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, 12 insertions, 2 deletions

diff --git a/lib/sqlalchemy/testing/mock.py b/lib/sqlalchemy/testing/mock.py
index dc530af5e..0b84d7db8 100644
--- a/lib/sqlalchemy/testing/mock.py
+++ b/lib/sqlalchemy/testing/mock.py
@@ -8,13 +8,23 @@
 """Import stub for mock library.
 """
 from __future__ import absolute_import
+
 from ..util import py33
 
+
 if py33:
-    from unittest.mock import MagicMock, Mock, call, patch, ANY
+    from unittest.mock import MagicMock
+    from unittest.mock import Mock
+    from unittest.mock import call
+    from unittest.mock import patch
+    from unittest.mock import ANY
 else:
     try:
-        from mock import MagicMock, Mock, call, patch, ANY
+        from mock import MagicMock  # noqa
+        from mock import Mock  # noqa
+        from mock import call  # noqa
+        from mock import patch  # noqa
+        from mock import ANY  # noqa
     except ImportError:
         raise ImportError(
             "SQLAlchemy's test suite requires the "