diff --git a/ceilometer/openstack/common/config/generator.py b/ceilometer/openstack/common/config/generator.py
index 3798ee61a..74819b460 100644
--- a/ceilometer/openstack/common/config/generator.py
+++ b/ceilometer/openstack/common/config/generator.py
@@ -121,7 +121,9 @@ def _import_module(mod_str):
 def _is_in_group(opt, group):
     "Check if opt is in group."
     for key, value in group._opts.items():
-        if value['opt'] == opt:
+        # NOTE(llu): Temporary workaround for bug #1262148, wait until
+        # newly released oslo.config support '==' operator.
+        if not(value['opt'] != opt):
             return True
     return False
 
diff --git a/ceilometer/openstack/common/gettextutils.py b/ceilometer/openstack/common/gettextutils.py
index 0cd85124d..bf060999a 100644
--- a/ceilometer/openstack/common/gettextutils.py
+++ b/ceilometer/openstack/common/gettextutils.py
@@ -19,7 +19,7 @@ gettext for openstack-common modules.
 
 Usual usage in an openstack.common module:
 
-    from ceilometer.openstack.common.gettextutils import _
+    from ceilometer.openstack.common.gettextutils import _  # noqa
 """
 
 import copy