INCR-380 python 3 compatibility

openedx/core/release.py

@@ -2,8 +2,9 @@
 Information about the release line of this Open edX code.
 """
 
-import unittest
+from __future__ import absolute_import
 
+import unittest
 
 # The release line: an Open edX release name ("ficus"), or "master".
 # This should always be "master" on the master branch, and will be changed

openedx/core/storage.py

@@ -1,6 +1,8 @@
 """
 Django storage backends for Open edX.
 """
+from __future__ import absolute_import
+
 from django.contrib.staticfiles.storage import StaticFilesStorage
 from django.core.files.storage import get_storage_class
 from django.utils.lru_cache import lru_cache