Update code by pylint suggestions.

Signed-off-by: Jay Zhang <[email protected]>

Author: fatcat-z

.github/workflows/pylint_action.yml renamed to .github/workflows/pylint.yml

@@ -16,14 +16,15 @@
 import time
 import zipfile
 import random
+import six
 from collections import namedtuple
 from packaging.version import Version
 
 
 import yaml
 import numpy as np
 import PIL.Image
-import six
+
 
 os.environ["TF_CPP_MIN_LOG_LEVEL"] = "3"
 import tensorflow as tf