chore: some lint fixes [(#3743)](GoogleCloudPlatform/python-docs-samples#3743)

Author: Takashi Matsuo

samples/snippets/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
 

samples/snippets/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
 

samples/snippets/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

samples/snippets/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