Relax pycodestyle: import only allowed at the top

While this is a really good convention, sometimes one must import
stuff inside a try except block. This block is still at the top, but pycodestyle
treats like it isn't, because it's in an idented block, and the outeer scope.

kubernetes/utils/create_from_yaml.py

@@ -14,17 +14,17 @@
 import re
 import sys
 
-if sys.version_info.major < 3:
-    from StringIO import StringIO
-else:
-    from io import StringIO
-
 from os import path
 
 import yaml
 
 from kubernetes import client
 
+if sys.version_info.major < 3:
+    from StringIO import StringIO  # noqa: F406
+else:
+    from io import StringIO  # noqa: F406
+
 
 def create_from_yaml(
         k8s_client,