Migrate cvp-sanity to Python3

* use print function from future
* convert dict keys and values to list
* do not use bunch imports
* fix requirements mismatch
Related: PROD-33849

Change-Id: Ifecc3a9dcdcfe3243f7dcf2c709a80e9a7c765a1
diff --git a/test_set/cvp-sanity/tests/test_nodes.py b/test_set/cvp-sanity/tests/test_nodes.py
index 082930e..481b331 100644
--- a/test_set/cvp-sanity/tests/test_nodes.py
+++ b/test_set/cvp-sanity/tests/test_nodes.py
@@ -11,7 +11,7 @@
         expr_form='pillar', check_status=True)
     statuses = {}
     try:
-        statuses = json.loads(result.values()[0])
+        statuses = json.loads(list(result.values())[0])
     except Exception as e:
         pytest.fail(
             "Could not check the result: {}\n"