diff --git a/.testr.conf b/.testr.conf
index 6d83b3c..686b3e6 100644
--- a/.testr.conf
+++ b/.testr.conf
@@ -2,6 +2,6 @@
 test_command=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
              OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
              OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-60} \
-             ${PYTHON:-python} -m subunit.run discover -t ./ . $LISTOPT $IDOPTION
+             ${PYTHON:-python} -m subunit.run discover -t ./ ./storyboardclient/tests $LISTOPT $IDOPTION
 test_id_option=--load-list $IDFILE
 test_list_option=--list
diff --git a/requirements.txt b/requirements.txt
index 8bb39cc..53d13b8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,5 +9,6 @@ oslo.config>=1.4.0
 oslo.i18n>=1.0.0
 oslo.serialization>=1.0.0
 oslo.utils>=1.0.0
+requests>=2.2.0,!=2.4.0
 six>=1.7.0
-stevedore>=1.1.0
\ No newline at end of file
+stevedore>=1.1.0
diff --git a/storyboardclient/auth/__init__.py b/storyboardclient/auth/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/storyboardclient/auth/oauth.py b/storyboardclient/auth/oauth.py
new file mode 100644
index 0000000..532347e
--- /dev/null
+++ b/storyboardclient/auth/oauth.py
@@ -0,0 +1,33 @@
+# Copyright (c) 2014 Mirantis Inc.
+#
+# 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.
+
+from storyboardclient.openstack.common.apiclient import auth
+
+
+class OAuthPlugin(auth.BaseAuthPlugin):
+
+    def _do_authenticate(self, http_client):
+        # Skipping for now as there will be a separate spec and implementation
+        # for authenticating a python client with OAuth.
+        pass
+
+    def __init__(self, api_url=None, access_token=None):
+        super(OAuthPlugin, self).__init__()
+
+        self.api_url = api_url
+        self.access_token = access_token
+
+    def token_and_endpoint(self, endpoint_type=None, service_type=None):
+        return self.access_token, self.api_url
diff --git a/storyboardclient/base.py b/storyboardclient/base.py
new file mode 100644
index 0000000..0a20193
--- /dev/null
+++ b/storyboardclient/base.py
@@ -0,0 +1,181 @@
+# Copyright (c) 2014 Mirantis Inc.
+#
+# 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 inspect
+
+import six
+
+from storyboardclient.auth import oauth
+from storyboardclient.openstack.common.apiclient import base
+from storyboardclient.openstack.common.apiclient import client
+
+DEFAULT_API_URL = "https://storyboard.openstack.org/api/v1"
+
+
+class BaseClient(client.BaseClient):
+
+    def __init__(self, api_url=None, access_token=None):
+        if not api_url:
+            api_url = DEFAULT_API_URL
+
+        self.auth_plugin = oauth.OAuthPlugin(api_url, access_token)
+        self.http_client = BaseHTTPClient(auth_plugin=self.auth_plugin)
+
+
+class BaseHTTPClient(client.HTTPClient):
+    """Base class for setting up endpoint and token.
+
+    This HTTP client is overriding a client_request method to add
+    Authorization header if OAuth token is provided.
+
+    """
+
+    def client_request(self, client, method, url, **kwargs):
+        """Send an http request using `client`'s endpoint and specified `url`.
+
+        If request was rejected as unauthorized (possibly because the token is
+        expired), issue one authorization attempt and send the request once
+        again.
+
+        :param client: instance of BaseClient descendant
+        :param method: method of HTTP request
+        :param url: URL of HTTP request
+        :param kwargs: any other parameter that can be passed to
+            `HTTPClient.request`
+        """
+
+        token, endpoint = (self.cached_token, client.cached_endpoint)
+        if not (token and endpoint):
+            token, endpoint = self.auth_plugin.token_and_endpoint()
+            self.cached_token = token
+            client.cached_endpoint = endpoint
+
+        if token:
+            kwargs.setdefault("headers", {})["Authorization"] = \
+                "Bearer %s" % token
+
+        return self.request(method, self.concat_url(endpoint, url), **kwargs)
+
+
+class BaseManager(base.CrudManager):
+
+    def build_url(self, base_url=None, **kwargs):
+        # Overriding to use "url_key" instead of the "collection_key".
+        # "key_id" is replaced with just "id" when querying a specific object.
+        url = base_url if base_url is not None else ''
+
+        url += '/%s' % self.url_key
+
+        entity_id = kwargs.get('id')
+        if entity_id is not None:
+            url += '/%s' % entity_id
+
+        return url
+
+    def get(self, id):
+        """Get a resource by id.
+
+        Get method is accepting id as a positional argument for simplicity.
+
+        :param id: The id of resource.
+        :return: The resource object.
+        """
+
+        query_kwargs = {"id": id}
+        return self._get(self.build_url(**query_kwargs), self.key)
+
+    def create(self, **kwargs):
+        """Create a resource.
+
+        The default implementation is overridden so that the dictionary is
+        passed 'as is' without any wrapping.
+        """
+
+        kwargs = self._filter_kwargs(kwargs)
+        return self._post(
+            self.build_url(**kwargs),
+            kwargs)
+
+
+class BaseNestedManager(BaseManager):
+
+    def __init__(self, client, parent_id):
+        super(BaseNestedManager, self).__init__(client)
+
+        self.parent_id = parent_id
+
+    def build_url(self, base_url=None, **kwargs):
+        # Overriding to use "url_key" instead of the "collection_key".
+        # "key_id" is replaced with just "id" when querying a specific object.
+        url = base_url if base_url is not None else ''
+
+        url += '/%s/%s/%s' % (self.parent_url_key, self.parent_id,
+                              self.url_key)
+
+        entity_id = kwargs.get('id')
+        if entity_id is not None:
+            url += '/%s' % entity_id
+
+        return url
+
+
+class BaseObject(base.Resource):
+
+    id = None
+    created_at = None
+    updated_at = None
+
+    def __init__(self, manager, info, loaded=False, parent_id=None):
+        super(BaseObject, self).__init__(manager, info, loaded)
+
+        self._parent_id = parent_id
+        self._init_nested_managers()
+
+    def _add_details(self, info):
+        for field, value in six.iteritems(info):
+
+            # Skip the fields which are not declared in the object
+            if not hasattr(self, field):
+                continue
+
+            setattr(self, field, value)
+
+    def _init_nested_managers(self):
+        # If an object has nested resource managers, they will be initialized
+        # here.
+
+        manager_instances = {}
+
+        for manager_name, manager_class in self._managers():
+            manager_instance = manager_class(client=self.manager.client,
+                                             parent_id=self.id)
+            # Saving a manager to a dict as self.__dict__ should not be
+            # changed while iterating
+            manager_instances[manager_name] = manager_instance
+
+        for name, manager_instance in six.iteritems(manager_instances):
+            # replacing managers declarations with real managers
+            setattr(self, name, manager_instance)
+
+    def _managers(self):
+        # Iterator over nested managers
+
+        for attr in dir(self):
+            # Skip private fields
+            if attr.startswith("_"):
+                continue
+            val = getattr(self, attr)
+            if inspect.isclass(val) and issubclass(val, BaseNestedManager):
+                yield attr, val
\ No newline at end of file
diff --git a/storyboardclient/tests/test_base/__init__.py b/storyboardclient/tests/test_base/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/storyboardclient/tests/test_base/test_base_HTTPClient.py b/storyboardclient/tests/test_base/test_base_HTTPClient.py
new file mode 100644
index 0000000..b4cf4f4
--- /dev/null
+++ b/storyboardclient/tests/test_base/test_base_HTTPClient.py
@@ -0,0 +1,52 @@
+# Copyright (c) 2014 Mirantis Inc.
+#
+# 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 mock
+
+from storyboardclient.auth import oauth
+from storyboardclient import base
+from storyboardclient.tests import base as test_base
+
+
+class BaseHTTPClientTestCase(test_base.TestCase):
+
+    @mock.patch("storyboardclient.base.BaseHTTPClient.request")
+    def test_unauthorized_client_request(self, mock_request):
+
+        auth_plugin = oauth.OAuthPlugin(api_url="http://some_endpoint")
+        client = base.BaseHTTPClient(auth_plugin=auth_plugin)
+
+        client.client_request(client=mock.MagicMock(),
+                              method="GET", url="/some_url")
+
+        mock_request.assert_called_once_with("GET",
+                                             "http://some_endpoint/some_url")
+
+    @mock.patch("storyboardclient.base.BaseHTTPClient.request")
+    def test_authorized_client_request(self, mock_request):
+
+        auth_plugin = oauth.OAuthPlugin(api_url="http://some_endpoint",
+                                        access_token="some_token")
+        client = base.BaseHTTPClient(auth_plugin=auth_plugin)
+
+        client.client_request(client=mock.MagicMock(),
+                              method="GET", url="/some_url")
+
+        mock_request.assert_called_once_with(
+            "GET",
+            "http://some_endpoint/some_url",
+            headers={
+                "Authorization": "Bearer some_token"
+            })
diff --git a/storyboardclient/tests/test_base/test_base_manager.py b/storyboardclient/tests/test_base/test_base_manager.py
new file mode 100644
index 0000000..9e1ce9f
--- /dev/null
+++ b/storyboardclient/tests/test_base/test_base_manager.py
@@ -0,0 +1,39 @@
+# Copyright (c) 2014 Mirantis Inc.
+#
+# 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 mock
+
+from storyboardclient import base
+from storyboardclient.tests import base as test_base
+
+
+class BaseManagerTestCase(test_base.TestCase):
+
+    @mock.patch("storyboardclient.base.BaseManager._get")
+    def test_get(self, mock_private_get):
+        manager = base.BaseManager(mock.MagicMock())
+        manager.url_key = "key"
+        manager.get("id1")
+
+        mock_private_get.assert_called_once_with("/key/id1", None)
+
+    @mock.patch("storyboardclient.base.BaseManager._post")
+    def test_create(self, mock_private_post):
+        manager = base.BaseManager(mock.MagicMock())
+        manager.url_key = "key"
+        manager.create(title="test_story")
+
+        mock_private_post.assert_called_once_with("/key",
+                                                  {"title": "test_story"})
diff --git a/storyboardclient/tests/test_base/test_base_nested_manager.py b/storyboardclient/tests/test_base/test_base_nested_manager.py
new file mode 100644
index 0000000..15e9a32
--- /dev/null
+++ b/storyboardclient/tests/test_base/test_base_nested_manager.py
@@ -0,0 +1,45 @@
+# Copyright (c) 2014 Mirantis Inc.
+#
+# 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 mock
+
+from storyboardclient import base
+from storyboardclient.tests import base as test_base
+
+
+class BaseNestedManagerTestCase(test_base.TestCase):
+
+    @mock.patch("storyboardclient.base.BaseManager._get")
+    def test_get(self, mock_private_get):
+        manager = base.BaseNestedManager(mock.MagicMock(),
+                                         parent_id="parent_id")
+        manager.parent_url_key = "parent_key"
+        manager.url_key = "key"
+        manager.get("id1")
+
+        mock_private_get.assert_called_once_with(
+            "/parent_key/parent_id/key/id1", None)
+
+    @mock.patch("storyboardclient.base.BaseManager._post")
+    def test_create(self, mock_private_post):
+        manager = base.BaseNestedManager(mock.MagicMock(),
+                                         parent_id="parent_id")
+        manager.parent_url_key = "parent_key"
+        manager.url_key = "key"
+        manager.create(title="test_task")
+
+        mock_private_post.assert_called_once_with(
+            "/parent_key/parent_id/key",
+            {"title": "test_task"})
diff --git a/storyboardclient/tests/test_base/test_base_object.py b/storyboardclient/tests/test_base/test_base_object.py
new file mode 100644
index 0000000..36afb41
--- /dev/null
+++ b/storyboardclient/tests/test_base/test_base_object.py
@@ -0,0 +1,43 @@
+# Copyright (c) 2014 Mirantis Inc.
+#
+# 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 mock
+
+from storyboardclient import base
+from storyboardclient.tests import base as test_base
+
+
+class BaseObjectTestCase(test_base.TestCase):
+
+    def test_init_no_nested(self):
+        manager_mock = mock.MagicMock()
+        obj = base.BaseObject(manager=manager_mock, info={"id": "test_id"})
+
+        self.assertEqual("test_id", obj.id)
+        self.assertEqual(manager_mock, obj.manager)
+
+    def test_init_with_nested(self):
+
+        manager_mock = mock.MagicMock()
+
+        class TestInheritedObject(base.BaseObject):
+            manager_field = base.BaseNestedManager
+
+        obj = TestInheritedObject(manager=manager_mock, info={"id": "test_id"})
+
+        self.assertEqual(base.BaseNestedManager, type(obj.manager_field))
+
+        self.assertEqual("test_id", obj.id)
+        self.assertEqual("test_id", obj.manager_field.parent_id)
diff --git a/storyboardclient/tests/test_storyboard.py b/storyboardclient/tests/test_storyboard.py
deleted file mode 100644
index 52fcf08..0000000
--- a/storyboardclient/tests/test_storyboard.py
+++ /dev/null
@@ -1,28 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# 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.
-
-"""
-test_storyboard
-----------------------------------
-
-Tests for `storyboard` module.
-"""
-
-from storyboardclient.tests import base
-
-
-class TestStoryboard(base.TestCase):
-
-    def test_something(self):
-        pass
diff --git a/storyboardclient/tests/v1/__init__.py b/storyboardclient/tests/v1/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/storyboardclient/tests/v1/test_user_preferences.py b/storyboardclient/tests/v1/test_user_preferences.py
new file mode 100644
index 0000000..b6e6460
--- /dev/null
+++ b/storyboardclient/tests/v1/test_user_preferences.py
@@ -0,0 +1,47 @@
+# Copyright (c) 2014 Mirantis Inc.
+#
+# 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 mock
+
+from storyboardclient.tests import base as test_base
+from storyboardclient.v1 import user_preferences
+from storyboardclient.v1 import users
+
+
+class UserPreferencesTestCase(test_base.TestCase):
+
+    @mock.patch("storyboardclient.v1.user_preferences.UserPreferencesManager"
+                "._get")
+    def test_user_preferences_get(self, mock_private_get):
+        mock_private_get.return_value = user_preferences.UserPreferences(
+            mock.MagicMock(),
+            info={"k1": "v1"})
+
+        user = users.User(manager=mock.MagicMock(), info={"id": "test_id"})
+
+        preferences = user.user_preferences.get_all()
+        self.assertEqual("v1", preferences.k1)
+
+        p_k1 = user.user_preferences.get("k1")
+        self.assertEqual("v1", p_k1)
+
+    @mock.patch("storyboardclient.v1.user_preferences.UserPreferencesManager"
+                "._post")
+    def test_user_preferences_set(self, mock_private_post):
+        user = users.User(manager=mock.MagicMock(), info={"id": "test_id"})
+
+        user.user_preferences.set({"k1": "v1"})
+        mock_private_post.assert_called_once_with("/users/test_id/preferences",
+                                                  {"k1": "v1"})
diff --git a/storyboardclient/v1/__init__.py b/storyboardclient/v1/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/storyboardclient/v1/client.py b/storyboardclient/v1/client.py
new file mode 100644
index 0000000..10906cf
--- /dev/null
+++ b/storyboardclient/v1/client.py
@@ -0,0 +1,44 @@
+# Copyright (c) 2014 Mirantis Inc.
+#
+# 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.
+
+from storyboardclient import base
+from storyboardclient.v1 import users
+
+
+class Client(base.BaseClient):
+    """A client class for StoryBoard.
+
+    Usage example:
+    @code:
+        from storyboard.v1 import client
+
+        storyboard = client.Client("https://storyboard.openstack.org/api/v1",
+                                   "mytoken")
+    """
+
+    def __init__(self, api_url=None, access_token=None):
+        """Sets up a client with endpoint managers.
+
+        :param api_url: (Optional) Full API url. Defaults to
+        https://storyboard.openstack.org/api/v1
+        :param access_token: (Optional) OAuth2 access token. If skipped only
+        public read-only endpoint will be available. All other requests will
+        fail with Unauthorized error.
+        :return: a client instance.
+        """
+        super(Client, self).__init__(api_url=api_url,
+                                     access_token=access_token)
+
+        self.users = users.UsersManager(self)
diff --git a/storyboardclient/v1/user_preferences.py b/storyboardclient/v1/user_preferences.py
new file mode 100644
index 0000000..980c63f
--- /dev/null
+++ b/storyboardclient/v1/user_preferences.py
@@ -0,0 +1,66 @@
+# Copyright (c) 2014 Mirantis Inc.
+#
+# 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 six
+
+from storyboardclient import base
+from storyboardclient.openstack.common import log
+
+LOG = log.getLogger(__name__)
+
+
+class UserPreferences(base.BaseObject):
+
+    def _add_details(self, info):
+        # User preferences can not be declared before the data is received.
+        # Adding all properties to an object directly.
+        for key, value in six.iteritems(info):
+            setattr(self, key, value)
+
+
+class UserPreferencesManager(base.BaseNestedManager):
+    parent_url_key = "users"
+    url_key = "preferences"
+    resource_class = UserPreferences
+
+    def get_all(self):
+        """Get a dictionary of User Preferences
+
+        User preferences are returned always as a dict, so it's better to use
+        a get base method instead of a list here.
+
+        :return: UserPreferences object
+        """
+
+        return super(UserPreferencesManager, self).get(None)
+
+    def get(self, key):
+        all_prefs = super(UserPreferencesManager, self).get(None)
+
+        return getattr(all_prefs, key)
+
+    def set(self, data):
+        """Set a dictionary of user preferences.
+
+        """
+
+        return self.create(**data)
+
+    def set_one(self, key, value):
+        """Set a user preference by key.
+
+        """
+
+        return self.set({key: value})
diff --git a/storyboardclient/v1/users.py b/storyboardclient/v1/users.py
new file mode 100644
index 0000000..a355e0e
--- /dev/null
+++ b/storyboardclient/v1/users.py
@@ -0,0 +1,33 @@
+# Copyright (c) 2014 Mirantis Inc.
+#
+# 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.
+
+from storyboardclient import base
+from storyboardclient.v1 import user_preferences
+
+
+class User(base.BaseObject):
+    username = None
+    full_name = None
+    openid = None
+    is_superuser = None
+    last_login = None
+    enable_login = None
+
+    user_preferences = user_preferences.UserPreferencesManager
+
+
+class UsersManager(base.BaseManager):
+    url_key = "users"
+    resource_class = User
diff --git a/tox.ini b/tox.ini
index 6dfd84e..6e7f78f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -29,6 +29,6 @@ commands = python setup.py build_sphinx
 # E123, E125 skipped as they are invalid PEP-8.
 
 show-source = True
-ignore = E123,E125,H803
+ignore = E123,E125,H803,H904
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build