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/__init__.py

@@ -14,5 +14,5 @@
 
 from __future__ import absolute_import
 
-from .create_from_yaml import (FailToCreateError, create_from_yaml,
-                               create_from_dict)
+from .create_from_yaml import (FailToCreateError, create_from_dict,
+                               create_from_yaml)

kubernetes/utils/create_from_yaml.py

@@ -13,18 +13,17 @@
 # limitations under the License.
 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,