diff --git a/mogan/__init__.py b/mogan/__init__.py
index c76ea71d..e69de29b 100644
--- a/mogan/__init__.py
+++ b/mogan/__init__.py
@@ -1,22 +0,0 @@
-# Copyright 2016 Huawei Technologies Co.,LTD.
-# All Rights Reserved.
-
-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-
-import os
-
-os.environ['EVENTLET_NO_GREENDNS'] = 'yes'
-
-import eventlet
-
-eventlet.monkey_patch(os=False)
diff --git a/mogan/cmd/__init__.py b/mogan/cmd/__init__.py
index 0ef4879d..d557937e 100644
--- a/mogan/cmd/__init__.py
+++ b/mogan/cmd/__init__.py
@@ -13,6 +13,14 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+
+import os
+
+os.environ['EVENTLET_NO_GREENDNS'] = 'yes'
+
+import eventlet
+
 import oslo_i18n as i18n
 
+eventlet.monkey_patch(os=False)
 i18n.install('mogan')
diff --git a/mogan/tests/functional/__init__.py b/mogan/tests/functional/__init__.py
index e69de29b..4e0b512d 100644
--- a/mogan/tests/functional/__init__.py
+++ b/mogan/tests/functional/__init__.py
@@ -0,0 +1,17 @@
+# Copyright 2017 Huawei Technologies Co.,LTD.
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+import eventlet
+
+eventlet.monkey_patch(os=False)
diff --git a/mogan/tests/unit/__init__.py b/mogan/tests/unit/__init__.py
index 5d8cb675..b1a67556 100644
--- a/mogan/tests/unit/__init__.py
+++ b/mogan/tests/unit/__init__.py
@@ -20,9 +20,11 @@
 .. automodule:: mogan.tests.unit
    :platform: Unix
 """
+import eventlet
 
 from mogan import objects
 
+eventlet.monkey_patch(os=False)
 # NOTE(Shaohe Feng): Make sure we have all of the objects loaded. We do this
 # at module import time, because we may be using mock decorators in our
 # tests that run at import time.