diff --git a/.zuul.yaml b/.zuul.yaml
index e7c200a..1fd1fe4 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -1,3 +1,7 @@
 - project:
-    templates:
-      - noop-jobs
+    check:
+      jobs:
+        - openstack-tox-pep8
+    gate:
+      jobs:
+        - openstack-tox-pep8
diff --git a/requirements.txt b/requirements.txt
index faef588..9bf2d0e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ six>=1.10.0 # MIT
 keystoneauth1>=3.3.0 # Apache-2.0
 stevedore>=1.20.0 # Apache-2.0
 requests>=2.14.2 # Apache-2.0
-oslo.i18n>=3.15.3 # Apache-2.0
+oslo.i18n>=1.5.0 # Apache-2.0
 oslo.log>=3.36.0 # Apache-2.0
 oslo.serialization!=2.19.1,>=2.18.0 # Apache-2.0
 oslo.utils>=3.33.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 88ba997..0e48fb5 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -3,7 +3,6 @@
 # process, which may cause wedges in the gate later.
 
 hacking>=3.0,<3.1.0 # Apache-2.0
-
 coverage>=4.0,!=4.4 # Apache-2.0
 python-subunit>=0.0.18 # Apache-2.0/BSD
 sphinx>=2.0.0,!=2.1.0 # BSD
diff --git a/tox.ini b/tox.ini
index 281a6de..918a72a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,8 +1,8 @@
 [tox]
-minversion = 3.1.1
-envlist = py37,pep8
+minversion = 3.2.1
+envlist = py3,pep8
 skipsdist = True
-ignore_basepython_conflict = True
+ignore_basepython_conflict=true
 
 [testenv]
 basepython = python3
diff --git a/venusclient/shell.py b/venusclient/shell.py
index 84f47cb..398e664 100644
--- a/venusclient/shell.py
+++ b/venusclient/shell.py
@@ -27,13 +27,11 @@ from __future__ import print_function
 import argparse
 import logging
 import os
-import sys
-
-import six
 from oslo_utils import encodeutils
 from oslo_utils import importutils
 from oslo_utils import strutils
-
+import six
+import sys
 from venusclient.common import cliutils
 from venusclient import exceptions as exc
 from venusclient.i18n import _
@@ -496,7 +494,7 @@ class OpenStackVenusShell(object):
         args.os_project_id = (args.os_project_id or args.os_tenant_id)
         args.os_project_name = (args.os_project_name or args.os_tenant_name)
 
-        #self._ensure_auth_info(args)
+        # self._ensure_auth_info(args)
 
         try:
             client = {
diff --git a/venusclient/tests/__init__.py b/venusclient/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/venusclient/v1/client.py b/venusclient/v1/client.py
index 18ddab3..a5832fa 100644
--- a/venusclient/v1/client.py
+++ b/venusclient/v1/client.py
@@ -14,6 +14,7 @@
 # limitations under the License.
 
 import os_client_config
+
 from keystoneauth1 import session as ksa_session
 from oslo_utils import importutils
 from venusclient.common import httpclient
@@ -48,7 +49,7 @@ def _load_service_type(session,
     try:
         # Trigger an auth error so that we can throw the exception
         # we always have
-        aaa = session.get_endpoint(
+        session.get_endpoint(
             service_type=service_type,
             service_name=service_name,
             interface=interface,
diff --git a/venusclient/v1/config.py b/venusclient/v1/config.py
index 1cedadd..08fab63 100644
--- a/venusclient/v1/config.py
+++ b/venusclient/v1/config.py
@@ -31,6 +31,5 @@ class ConfigManager(basemodels.BaseModelManager):
         url = '/v1/custom_config'
         try:
             resp, body = self.api.json_request('GET', url)
-        except:
-            print("")
-
+        except Exception as e:
+            raise RuntimeError(str(e))
diff --git a/venusclient/v1/config_shell.py b/venusclient/v1/config_shell.py
index 1b0463a..f0479be 100644
--- a/venusclient/v1/config_shell.py
+++ b/venusclient/v1/config_shell.py
@@ -12,13 +12,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from venusclient.common import cliutils as utils
-from venusclient.i18n import _
 
-
-
-def do_get_log_storage_days(cs,args):
+def do_get_log_storage_days(cs, args):
     """get the elasticsearch days of svae the logs."""
     endpoint = cs.config.get_days()
-
-
+    print(endpoint)