diff --git a/appengine/standard_python37/pubsub/main.py b/appengine/standard_python37/pubsub/main.py
index 4fb3c5b6b59..26c2943aa85 100644
--- a/appengine/standard_python37/pubsub/main.py
+++ b/appengine/standard_python37/pubsub/main.py
@@ -14,11 +14,11 @@
 
 # [START app]
 import base64
-from flask import current_app, Flask, render_template, request
 import json
 import logging
 import os
 
+from flask import current_app, Flask, render_template, request
 from google.auth.transport import requests
 from google.cloud import pubsub_v1
 from google.oauth2 import id_token
@@ -39,6 +39,7 @@
 TOKENS = []
 CLAIMS = []
 
+
 # [START index]
 @app.route('/', methods=['GET', 'POST'])
 def index():
diff --git a/appengine/standard_python37/pubsub/main_test.py b/appengine/standard_python37/pubsub/main_test.py
index e1fede07c15..2bee4877cb8 100644
--- a/appengine/standard_python37/pubsub/main_test.py
+++ b/appengine/standard_python37/pubsub/main_test.py
@@ -20,11 +20,11 @@
 import datetime
 import json
 import os
-import pytest
 
 from google.auth import crypt
 from google.auth import jwt
 from google.oauth2 import id_token
+import pytest
 
 import main
 
diff --git a/automl/beta/set_endpoint_test.py b/automl/beta/set_endpoint_test.py
index 88a0164c66a..e1518fe98c1 100644
--- a/automl/beta/set_endpoint_test.py
+++ b/automl/beta/set_endpoint_test.py
@@ -13,8 +13,10 @@
 # limitations under the License.
 
 import os
+
 import set_endpoint
 
+
 PROJECT_ID = os.environ['GCLOUD_PROJECT']
 
 
diff --git a/bigquery/bqml/data_scientist_tutorial_test.py b/bigquery/bqml/data_scientist_tutorial_test.py
index eb4ef4b821b..f5fec0a9497 100644
--- a/bigquery/bqml/data_scientist_tutorial_test.py
+++ b/bigquery/bqml/data_scientist_tutorial_test.py
@@ -12,11 +12,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import uuid
+
 # [START bqml_data_scientist_tutorial_import_and_client]
 from google.cloud import bigquery
 # [END bqml_data_scientist_tutorial_import_and_client]
 import pytest
-import uuid
+
 
 # [START bqml_data_scientist_tutorial_import_and_client]
 client = bigquery.Client()