pep8 whitespace changes

These changes are little things I found while transitioning the code to
work on Python3.

Change-Id: Id67a29dfc7546c5594f579ab4f512d1d0f39e4fa

keystone/auth/plugins/core.py

@@ -21,6 +21,7 @@ import six
 from keystone.common import dependency
 from keystone import exception
 
+
 CONF = cfg.CONF
 LOG = log.getLogger(__name__)
 

keystone/auth/plugins/password.py

@@ -20,6 +20,7 @@ from keystone.common import dependency
 from keystone import exception
 from keystone.i18n import _
 
+
 METHOD_NAME = 'password'
 
 LOG = log.getLogger(__name__)

keystone/common/environment/__init__.py

@@ -17,6 +17,7 @@ import os
 
 from oslo_log import log
 
+
 LOG = log.getLogger(__name__)
 
 

keystone/common/ldap/core.py

@@ -29,6 +29,7 @@ from keystone import exception
 from keystone.i18n import _
 from keystone.i18n import _LW
 
+
 LOG = log.getLogger(__name__)
 
 LDAP_VALUES = {'TRUE': True, 'FALSE': False}

keystone/common/pemutils.py

@@ -12,7 +12,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-
 """
 PEM formatted data is used frequently in conjunction with X509 PKI as
 a data exchange mechanism for binary data. The acronym PEM stands for

keystone/common/sql/migrate_repo/versions/052_add_auth_url_to_region.py

@@ -14,6 +14,7 @@
 
 import sqlalchemy as sql
 
+
 _REGION_TABLE_NAME = 'region'
 
 

keystone/common/sql/migrate_repo/versions/053_endpoint_to_region_association.py

@@ -12,7 +12,6 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-
 """Migrated the endpoint 'region' column to 'region_id.
 
 In addition to the rename, the new column is made a foreign key to the

keystone/common/sql/migrate_repo/versions/054_add_actor_id_index.py

@@ -14,6 +14,7 @@
 
 import sqlalchemy as sql
 
+
 ASSIGNMENT_TABLE = 'assignment'
 
 

keystone/common/sql/migrate_repo/versions/061_add_parent_project.py

@@ -14,6 +14,7 @@ import sqlalchemy as sql
 
 from keystone.common.sql import migration_helpers
 
+
 _PROJECT_TABLE_NAME = 'project'
 _PARENT_ID_COLUMN_NAME = 'parent_id'
 

keystone/common/sql/migrate_repo/versions/063_drop_region_auth_url.py

@@ -12,6 +12,7 @@
 
 import sqlalchemy as sql
 
+
 _REGION_TABLE_NAME = 'region'
 
 

keystone/common/sql/migrate_repo/versions/065_add_domain_config.py

@@ -14,6 +14,7 @@ import sqlalchemy as sql
 
 from keystone.common import sql as ks_sql
 
+
 WHITELIST_TABLE = 'whitelisted_config'
 SENSITIVE_TABLE = 'sensitive_config'
 

keystone/contrib/endpoint_filter/backends/catalog_sql.py

@@ -20,6 +20,7 @@ from keystone.catalog import core as catalog_core
 from keystone.common import dependency
 from keystone import exception
 
+
 CONF = cfg.CONF
 
 

keystone/contrib/endpoint_policy/core.py

@@ -23,6 +23,7 @@ from keystone.common import manager
 from keystone import exception
 from keystone.i18n import _, _LE, _LW
 
+
 CONF = cfg.CONF
 LOG = log.getLogger(__name__)
 

keystone/contrib/s3/core.py

@@ -32,6 +32,7 @@ from keystone.common import wsgi
 from keystone.contrib.ec2 import controllers
 from keystone import exception
 
+
 EXTENSION_DATA = {
     'name': 'OpenStack S3 API',
     'namespace': 'http://docs.openstack.org/identity/api/ext/'

keystone/identity/generator.py

@@ -23,6 +23,7 @@ from keystone.common import dependency
 from keystone.common import manager
 from keystone import exception
 
+
 CONF = cfg.CONF
 
 

keystone/middleware/core.py

@@ -25,6 +25,7 @@ from keystone.i18n import _LW
 from keystone.models import token_model
 from keystone.openstack.common import versionutils
 
+
 CONF = cfg.CONF
 LOG = log.getLogger(__name__)
 

keystone/tests/unit/common/test_ldap.py

@@ -28,6 +28,7 @@ from keystone.tests import unit as tests
 from keystone.tests.unit import default_fixtures
 from keystone.tests.unit import fakeldap
 
+
 CONF = cfg.CONF
 
 

keystone/tests/unit/test_cli.py

@@ -25,6 +25,7 @@ from keystone import resource
 from keystone.tests import unit as tests
 from keystone.tests.unit.ksfixtures import database
 
+
 CONF = cfg.CONF
 
 

keystone/tests/unit/test_kvs.py

@@ -28,6 +28,7 @@ from keystone.common.kvs import core
 from keystone import exception
 from keystone.tests import unit as tests
 
+
 NO_VALUE = api.NO_VALUE