Use oslo_log instead of logging

Some modules can be converted to use oslo_log instead of logging
lib.

Change-Id: I00a676ef266f47590f8c46d4a1a4eb876ab1f27d

nova/debugger.py

@@ -37,8 +37,8 @@ def init():
     if not (CONF.remote_debug.host and CONF.remote_debug.port):
         return
 
-    import logging
     from nova.i18n import _LW
+    from oslo_log import log as logging
     LOG = logging.getLogger(__name__)
 
     LOG.debug('Listening on %(host)s:%(port)s for debug connection',

nova/policy.py

@@ -15,9 +15,8 @@
 
 """Policy Engine For Nova."""
 
-import logging
-
 from oslo_config import cfg
+from oslo_log import log as logging
 from oslo_policy import policy
 from oslo_utils import excutils
 

nova/tests/unit/test_utils.py

@@ -15,7 +15,6 @@
 import datetime
 import hashlib
 import importlib
-import logging
 import os
 import os.path
 import socket
@@ -29,6 +28,7 @@ from oslo_concurrency import processutils
 from oslo_config import cfg
 from oslo_context import context as common_context
 from oslo_context import fixture as context_fixture
+from oslo_log import log as logging
 from oslo_utils import encodeutils
 from oslo_utils import fixture as utils_fixture
 from oslo_utils import units

nova/utils.py

@@ -24,7 +24,6 @@ import errno
 import functools
 import hashlib
 import inspect
-import logging as std_logging
 import os
 import pyclbr
 import random
@@ -215,7 +214,7 @@ class RootwrapDaemonHelper(RootwrapProcessHelper):
         # rootwrap to honor the same set of flags in kwargs and to ensure
         # that we don't regress any current behavior.
         cmd = [str(c) for c in cmd]
-        loglevel = kwargs.pop('loglevel', std_logging.DEBUG)
+        loglevel = kwargs.pop('loglevel', logging.DEBUG)
         log_errors = kwargs.pop('log_errors', None)
         process_input = kwargs.pop('process_input', None)
         delay_on_retry = kwargs.pop('delay_on_retry', True)

nova/version.py

@@ -33,7 +33,7 @@ def _load_config():
 
     from oslo_config import cfg
 
-    import logging
+    from oslo_log import log as logging
 
     global loaded, NOVA_VENDOR, NOVA_PRODUCT, NOVA_PACKAGE
     if loaded: