diff --git a/inventory_provider/juniper.py b/inventory_provider/juniper.py
index 3094781f90b04b42518a7d286b186d4a4f3ae83a..6208546adef774b4b95635174029ceee7014f380 100644
--- a/inventory_provider/juniper.py
+++ b/inventory_provider/juniper.py
@@ -275,7 +275,6 @@ def ix_public_peers(netconf_config):
         }
 
 
-
 # note for enabling vrr data parsing ...
 # def fetch_vrr_config(hostname, ssh_params):
 #
diff --git a/test/per_router/test_celery_worker.py b/test/per_router/test_celery_worker.py
index f822c5e72623b60ec58fda41d7d28e8cb5f893e9..c943e40af1079e95d4b5d8be07c8be339dcff732 100644
--- a/test/per_router/test_celery_worker.py
+++ b/test/per_router/test_celery_worker.py
@@ -3,7 +3,6 @@ just checks that the worker methods call the right functions
 and some data ends up in the right place ... otherwise not very detailed
 """
 import json
-import logging
 import os
 import re
 
@@ -38,6 +37,7 @@ TEST_DATA_DIRNAME = os.path.realpath(os.path.join(
 #     def get(self, key):
 #         return MockedRedis.db[key].encode('utf-8')
 
+
 class MockedRedis(object):
 
     db = None
@@ -75,7 +75,8 @@ class MockedRedis(object):
 
 
 @pytest.fixture
-def mocked_worker_module(mocker, data_config, cached_test_data, mocked_netifaces):
+def mocked_worker_module(
+        mocker, data_config, cached_test_data, mocked_netifaces):
 
     worker.InventoryTask.config = data_config
 
@@ -95,7 +96,7 @@ def mocked_worker_module(mocker, data_config, cached_test_data, mocked_netifaces
         'inventory_provider.juniper.load_config',
         _mocked_load_juniper_netconf_config)
 
-    unused = MockedRedis()  # init so that db is initialized
+    MockedRedis()  # create an instances so db is initialized
 
 
 def test_netconf_refresh_config(mocked_worker_module, router):
@@ -139,4 +140,3 @@ def test_reload_router_config(mocked_worker_module, router, mocker):
     worker.reload_router_config(router)
     assert 'netconf:' + router in MockedRedis.db
     assert 'snmp-interfaces:' + router in MockedRedis.db
-
diff --git a/test/per_router/test_juniper_data.py b/test/per_router/test_juniper_data.py
index 78f624b429182b3faec751900af44488583fafd9..2574209e2f74c9ea19ee67dab924c7415d415ce1 100644
--- a/test/per_router/test_juniper_data.py
+++ b/test/per_router/test_juniper_data.py
@@ -1,5 +1,3 @@
-import ast
-import netifaces
 import os
 
 import jsonschema
@@ -102,7 +100,5 @@ def test_bgp_list(netconf_doc):
     jsonschema.validate(routes, schema)
 
 
-
-
 def test_snmp_community_string(mocked_netifaces, netconf_doc):
     assert juniper.snmp_community_string(netconf_doc) == '0pBiFbD'
diff --git a/test/test_ix_public_peers.py b/test/test_ix_public_peers.py
index 5b9866cb008b651b17ddc4dc6b6e4f7e5223d10d..75131a9f0c8160b73443f56f9006c57b5571b3e5 100644
--- a/test/test_ix_public_peers.py
+++ b/test/test_ix_public_peers.py
@@ -28,7 +28,7 @@ def netconf():
 def test_ix_public_peers(netconf):
 
     schema = {
-    "$schema": "http://json-schema.org/draft-07/schema#",
+        "$schema": "http://json-schema.org/draft-07/schema#",
 
         "type": "object",
         "properties": {