Changes import orders to pass H305 check

Changes import orders to H305 check in hacking 0.9.x
Leaves H305 in ignore setting in tox.ini
due to hacking is confused by oslo.* namespace
when checking import rules
see https://bugs.launchpad.net/hacking/+bug/1329363

Change-Id: I1701574b5e1a8cde1a044cda90a0c95360bb0825

tests/sqlalchemy/test_sqlalchemy.py

@@ -20,13 +20,13 @@ import logging
 
 import fixtures
 import mock
+from oslo.config import cfg
 from oslotest import base as oslo_test
 import sqlalchemy
 from sqlalchemy import Column, MetaData, Table
 from sqlalchemy import Integer, String
 from sqlalchemy.ext.declarative import declarative_base
 
-from oslo.config import cfg
 from oslo.db import exception
 from oslo.db import options as db_options
 from oslo.db.sqlalchemy import models

tests/sqlalchemy/test_utils.py

@@ -13,10 +13,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import fixtures
 import uuid
 import warnings
 
+import fixtures
 from migrate.changeset import UniqueConstraint
 import mock
 from oslotest import base as test_base

tox.ini

@@ -40,6 +40,9 @@ commands =
 [flake8]
 # H803 skipped on purpose per list discussion.
 # E123, E125 skipped as they are invalid PEP-8.
+# TODO(pblaho): enable H305 when hacking is patched
+# H305 skipped b/c of hacking is confused with oslo.* namespace
+# see https://bugs.launchpad.net/hacking/+bug/1329363
 
 show-source = True
 ignore = E123,E125,E128,E265,H305,H307,H402,H405,H703,H803,H904