diff --git a/examples/pytorch/cpu-demo/demo.py b/examples/pytorch/cpu-demo/demo.py
index 8ebb04a82d..3d2d5dc83f 100644
--- a/examples/pytorch/cpu-demo/demo.py
+++ b/examples/pytorch/cpu-demo/demo.py
@@ -1,4 +1,5 @@
 import torch
+
 torch.distributed.init_process_group(init_method="env://")
 rank = torch.distributed.get_rank()
 world_size = torch.distributed.get_world_size()
diff --git a/examples/pytorch/elastic/echo/echo.py b/examples/pytorch/elastic/echo/echo.py
index 17f7632620..67fcf40f72 100644
--- a/examples/pytorch/elastic/echo/echo.py
+++ b/examples/pytorch/elastic/echo/echo.py
@@ -7,7 +7,6 @@
 
 import torch.distributed as dist
 
-
 if __name__ == "__main__":
 
     env_dict = {
diff --git a/sdk/python/kubeflow/training/api_client.py b/sdk/python/kubeflow/training/api_client.py
index 52d67804b0..7817ffacbd 100644
--- a/sdk/python/kubeflow/training/api_client.py
+++ b/sdk/python/kubeflow/training/api_client.py
@@ -12,22 +12,21 @@
 
 import atexit
 import datetime
-from dateutil.parser import parse
 import json
 import mimetypes
-from multiprocessing.pool import ThreadPool
 import os
 import re
 import tempfile
+from multiprocessing.pool import ThreadPool
 
+import kubeflow.training.models
 # python 2 and python 3 compatibility library
 import six
-from six.moves.urllib.parse import quote
-
-from kubeflow.training.configuration import Configuration
-import kubeflow.training.models
+from dateutil.parser import parse
 from kubeflow.training import rest
-from kubeflow.training.exceptions import ApiValueError, ApiException
+from kubeflow.training.configuration import Configuration
+from kubeflow.training.exceptions import ApiException, ApiValueError
+from six.moves.urllib.parse import quote
 
 
 class ApiClient(object):