diff --git a/compute/oslogin/service_account_ssh.py b/compute/oslogin/service_account_ssh.py
index ce854e63829..73d129c12b8 100644
--- a/compute/oslogin/service_account_ssh.py
+++ b/compute/oslogin/service_account_ssh.py
@@ -21,13 +21,15 @@
 """
 
 # [START imports_and_variables]
-import time
+import argparse
+import logging
 import subprocess
+import time
 import uuid
-import logging
-import requests
-import argparse
+
 import googleapiclient.discovery
+import requests
+
 
 # Global variables
 SERVICE_ACCOUNT_METADATA_URL = (
diff --git a/compute/oslogin/service_account_ssh_test.py b/compute/oslogin/service_account_ssh_test.py
index 37e369d9773..410985c98fc 100644
--- a/compute/oslogin/service_account_ssh_test.py
+++ b/compute/oslogin/service_account_ssh_test.py
@@ -17,8 +17,8 @@
 import random
 import time
 
-import googleapiclient.discovery
 from google.oauth2 import service_account
+import googleapiclient.discovery
 from retrying import retry
 
 from service_account_ssh import main
diff --git a/dataflow/run_template/main_test.py b/dataflow/run_template/main_test.py
index 413f9891755..e6617033ca6 100644
--- a/dataflow/run_template/main_test.py
+++ b/dataflow/run_template/main_test.py
@@ -17,25 +17,27 @@
 #   nox -s "py27(sample='./dataflow/run_template')"
 #   nox -s "py36(sample='./dataflow/run_template')"
 
-import flask
+from datetime import datetime
 import json
 import os
-import pytest
 import time
 import uuid
 
-from datetime import datetime
+import flask
 from googleapiclient.discovery import build
 from googleapiclient.errors import HttpError
+import pytest
 from werkzeug.urls import url_encode
 
 import main
 
+
 PROJECT = os.environ['GCLOUD_PROJECT']
 BUCKET = os.environ['CLOUD_STORAGE_BUCKET']
 
 dataflow = build('dataflow', 'v1b3')
 
+
 # Create a fake "app" for generating test request contexts.
 @pytest.fixture(scope="module")
 def app():
diff --git a/dataproc/create_cluster_test.py b/dataproc/create_cluster_test.py
index 72ffce2bf06..6d815b5bc61 100644
--- a/dataproc/create_cluster_test.py
+++ b/dataproc/create_cluster_test.py
@@ -14,9 +14,9 @@
 
 import os
 import uuid
-import pytest
 
 from google.cloud import dataproc_v1 as dataproc
+import pytest
 
 import create_cluster
 
diff --git a/dataproc/quickstart/quickstart_test.py b/dataproc/quickstart/quickstart_test.py
index a38019d9b18..7788e094634 100644
--- a/dataproc/quickstart/quickstart_test.py
+++ b/dataproc/quickstart/quickstart_test.py
@@ -14,10 +14,10 @@
 
 import os
 import uuid
-import pytest
 
 from google.cloud import dataproc_v1 as dataproc
 from google.cloud import storage
+import pytest
 
 import quickstart
 
diff --git a/dataproc/single_job_workflow.py b/dataproc/single_job_workflow.py
index b17ea0b9599..b2754b06c1e 100644
--- a/dataproc/single_job_workflow.py
+++ b/dataproc/single_job_workflow.py
@@ -28,9 +28,10 @@
 import os
 
 from google.cloud import dataproc_v1
+from google.cloud import storage
 from google.cloud.dataproc_v1.gapic.transports import (
     workflow_template_service_grpc_transport)
-from google.cloud import storage
+
 
 DEFAULT_FILENAME = "pyspark_sort.py"
 waiting_callback = False
diff --git a/dataproc/submit_job_to_cluster.py b/dataproc/submit_job_to_cluster.py
index 1c648abc1a7..389cbec87aa 100644
--- a/dataproc/submit_job_to_cluster.py
+++ b/dataproc/submit_job_to_cluster.py
@@ -33,11 +33,12 @@
 import os
 
 from google.cloud import dataproc_v1
+from google.cloud import storage
 from google.cloud.dataproc_v1.gapic.transports import (
     cluster_controller_grpc_transport)
 from google.cloud.dataproc_v1.gapic.transports import (
     job_controller_grpc_transport)
-from google.cloud import storage
+
 
 DEFAULT_FILENAME = 'pyspark_sort.py'
 waiting_callback = False
diff --git a/datastore/cloud-ndb/flask_app_test.py b/datastore/cloud-ndb/flask_app_test.py
index f48085a54a4..547b59e3da2 100644
--- a/datastore/cloud-ndb/flask_app_test.py
+++ b/datastore/cloud-ndb/flask_app_test.py
@@ -16,8 +16,8 @@
 
 
 import backoff
-import pytest
 from google.cloud import ndb
+import pytest
 
 import flask_app
 
diff --git a/dialogflow/cloud-client/create_knowledge_base_test.py b/dialogflow/cloud-client/create_knowledge_base_test.py
index 2bcdf2cb1ce..b605edfda41 100644
--- a/dialogflow/cloud-client/create_knowledge_base_test.py
+++ b/dialogflow/cloud-client/create_knowledge_base_test.py
@@ -16,9 +16,9 @@
 
 import os
 import uuid
-import pytest
 
 import dialogflow_v2beta1 as dialogflow
+import pytest
 
 import knowledge_base_management