Adjust import items according to hacking import rule

This patch adjust import items and add missing blank lines acording
to http://docs.openstack.org/developer/hacking/#imports
{{stdlib imports in human alphabetical order}}
\n
{{third-party lib imports in human alphabetical order}}
\n
{{project imports in human alphabetical order}}
\n
\n
{{begin your code}}

hacking project also enforce some checks for import group.
Let make the change in keytoneclient

Change-Id: Ic83bd5ee426905588f4a2d555851a9a01fc69f02

test_auth_token_middleware.py

@@ -16,20 +16,20 @@
 
 import calendar
 import datetime
-import iso8601
 import os
 import shutil
 import stat
 import sys
 import tempfile
-import testtools
 import time
 import uuid
 
 import fixtures
 import httpretty
+import iso8601
 import mock
 import testresources
+import testtools
 import webob
 
 from keystoneclient.common import cms

test_discovery.py

@@ -23,6 +23,7 @@ from keystoneclient.tests import utils
 from keystoneclient.v2_0 import client as v2_client
 from keystoneclient.v3 import client as v3_client
 
+
 BASE_HOST = 'http://keystone.example.com'
 BASE_URL = "%s:5000/" % BASE_HOST
 UPDATED = '2013-03-06T00:00:00Z'

test_http.py

@@ -14,8 +14,9 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import httpretty
 import logging
+
+import httpretty
 import six
 from testtools import matchers
 
@@ -24,6 +25,7 @@ from keystoneclient import httpclient
 from keystoneclient import session
 from keystoneclient.tests import utils
 
+
 RESPONSE_BODY = '{"hi": "there"}'
 
 

test_https.py

@@ -13,13 +13,13 @@
 #    under the License.
 
 import mock
-
 import requests
 
 from keystoneclient import httpclient
 from keystoneclient import session
 from keystoneclient.tests import utils
 
+
 FAKE_RESPONSE = utils.TestResponse({
     "status_code": 200,
     "text": '{"hi": "there"}',

test_keyring.py

@@ -28,6 +28,7 @@ try:
 except ImportError:
     keyring = None
 
+
 PROJECT_SCOPED_TOKEN = client_fixtures.PROJECT_SCOPED_TOKEN
 
 # These mirror values from PROJECT_SCOPED_TOKEN

v2_0/test_access.py

@@ -22,6 +22,7 @@ from keystoneclient.tests import client_fixtures as token_data
 from keystoneclient.tests.v2_0 import client_fixtures
 from keystoneclient.tests.v2_0 import utils
 
+
 UNSCOPED_TOKEN = client_fixtures.UNSCOPED_TOKEN
 PROJECT_SCOPED_TOKEN = client_fixtures.PROJECT_SCOPED_TOKEN
 

v2_0/utils.py

@@ -17,6 +17,7 @@ import httpretty
 from keystoneclient.tests import utils
 from keystoneclient.v2_0 import client
 
+
 TestResponse = utils.TestResponse
 
 

v3/test_access.py

@@ -19,6 +19,7 @@ from keystoneclient.openstack.common import timeutils
 from keystoneclient.tests.v3 import client_fixtures
 from keystoneclient.tests.v3 import utils
 
+
 TOKEN_RESPONSE = utils.TestResponse({
     "headers": client_fixtures.AUTH_RESPONSE_HEADERS
 })

v3/utils.py

@@ -21,6 +21,7 @@ from keystoneclient.openstack.common import jsonutils
 from keystoneclient.tests import utils
 from keystoneclient.v3 import client
 
+
 TestResponse = utils.TestResponse