use oslo.log instead of logging

The constants of log levels were added in the 1.8 version
of the oslo.log library.
So we can replace all usage of system logging module
with log module from oslo.log

Change-Id: I97a1d913b543dc9dbd4d228b04adbdf7ee320df5

keystonemiddleware/audit/__init__.py

@@ -21,10 +21,10 @@ provides.
 
 import copy
 import functools
-import logging
 
 from oslo_config import cfg
 from oslo_context import context as oslo_context
+from oslo_log import log as logging
 from pycadf import cadftaxonomy as taxonomy
 from pycadf import cadftype
 from pycadf import reason

keystonemiddleware/audit/_api.py

@@ -11,9 +11,9 @@
 # under the License.
 
 import collections
-import logging
 import re
 
+from oslo_log import log as logging
 from oslo_serialization import jsonutils
 from pycadf import cadftaxonomy as taxonomy
 from pycadf import cadftype

keystonemiddleware/auth_token/__init__.py

@@ -215,7 +215,6 @@ object is stored.
 import binascii
 import copy
 import datetime
-import logging
 import warnings
 
 from keystoneauth1 import access
@@ -226,6 +225,7 @@ from keystoneauth1 import loading
 from keystoneauth1.loading import session as session_loading
 from keystoneclient.common import cms
 from keystoneclient import exceptions as ksc_exceptions
+from oslo_log import log as logging
 from oslo_serialization import jsonutils
 import six
 import webob.dec

keystonemiddleware/auth_token/_auth.py

@@ -10,13 +10,12 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import logging
-
 from keystoneauth1 import discover
 from keystoneauth1.identity import v2
 from keystoneauth1 import plugin
 from keystoneauth1 import token_endpoint
 from oslo_config import cfg
+from oslo_log import log as logging
 
 from keystonemiddleware.auth_token import _base
 from keystonemiddleware.i18n import _, _LW

keystonemiddleware/auth_token/_memcache_pool.py

@@ -21,9 +21,9 @@
 import collections
 import contextlib
 import itertools
-import logging
 import time
 
+from oslo_log import log as logging
 from six.moves import queue
 
 from keystonemiddleware.i18n import _LC

keystonemiddleware/auth_token/_revocations.py

@@ -11,9 +11,9 @@
 # under the License.
 
 import datetime
-import logging
 import os
 
+from oslo_log import log as logging
 from oslo_serialization import jsonutils
 from oslo_utils import timeutils
 

keystonemiddleware/auth_token/_signing_dir.py

@@ -10,11 +10,11 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import logging
 import os
 import stat
 import tempfile
 
+from oslo_log import log as logging
 import six
 
 from keystonemiddleware.auth_token import _exceptions as exc

keystonemiddleware/ec2_token.py

@@ -18,9 +18,9 @@
 """Starting point for routing EC2 requests."""
 
 import hashlib
-import logging
 
 from oslo_config import cfg
+from oslo_log import log as logging
 from oslo_serialization import jsonutils
 import requests
 import six

keystonemiddleware/fixture.py

@@ -10,11 +10,11 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import logging
 import uuid
 
 import fixtures
 from keystoneauth1 import fixture as client_fixtures
+from oslo_log import log as logging
 from oslo_utils import timeutils
 from positional import positional
 

keystonemiddleware/s3_token.py

@@ -31,9 +31,9 @@ This WSGI component:
 
 """
 
-import logging
 import webob
 
+from oslo_log import log as logging
 from oslo_serialization import jsonutils
 from oslo_utils import strutils
 import requests

keystonemiddleware/tests/unit/auth_token/base.py

@@ -10,11 +10,10 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import logging
-
 import fixtures
 from oslo_config import cfg
 from oslo_config import fixture as cfg_fixture
+from oslo_log import log as logging
 from requests_mock.contrib import fixture as rm_fixture
 import six
 from six.moves import http_client

keystonemiddleware/tests/unit/auth_token/test_auth.py

@@ -10,12 +10,12 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import logging
 import uuid
 
 from keystoneauth1 import fixture
 from keystoneauth1 import plugin as ksa_plugin
 from keystoneauth1 import session
+from oslo_log import log as logging
 from requests_mock.contrib import fixture as rm_fixture
 import six
 

keystonemiddleware/tests/unit/auth_token/test_auth_token_middleware.py

@@ -13,7 +13,6 @@
 # under the License.
 
 import datetime
-import logging
 import os
 import shutil
 import stat
@@ -29,6 +28,7 @@ from keystoneauth1 import session
 from keystoneclient.common import cms
 from keystoneclient import exceptions as ksc_exceptions
 import mock
+from oslo_log import log as logging
 from oslo_serialization import jsonutils
 from oslo_utils import timeutils
 import pbr.version

keystonemiddleware/tests/unit/utils.py

@@ -10,7 +10,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import logging
 import sys
 import time
 import uuid
@@ -18,6 +17,7 @@ import warnings
 
 import fixtures
 import mock
+from oslo_log import log as logging
 import oslotest.base as oslotest
 import requests
 import webob

requirements.txt

@@ -6,6 +6,7 @@ keystoneauth1>=2.16.0 # Apache-2.0
 oslo.config!=3.18.0,>=3.14.0 # Apache-2.0
 oslo.context>=2.9.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
+oslo.log>=3.11.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
 oslo.utils>=3.18.0 # Apache-2.0
 pbr>=1.8 # Apache-2.0