PR #756 amendments

- better comment for race condition fix
- removed unused imports

#756

controlpanel/api/kubernetes.py

@@ -23,7 +23,9 @@ def get_config():
 
     config = kubernetes.client.Configuration()
 
-    # The deepcopy is to avoid a race conditions on the credentials keys
+    # A deepcopy of the configuration is used to avoid a race condition
+    # caused by subsequent calls to Configuration() reusing a singleton
+    # datastructure
     #
     # See: https://github.com/kubernetes-client/python/issues/932
     config.api_key_prefix = deepcopy(config.api_key_prefix)

controlpanel/kubeapi/views.py

@@ -1,7 +1,5 @@
-from functools import wraps
 from urllib.parse import urljoin
 
-from django.conf import settings
 from django.core import exceptions
 from django.views.decorators.csrf import csrf_exempt
 from djproxy.views import HttpProxy