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_ntp_sync.py b/test_set/cvp-sanity/tests/test_ntp_sync.py
index f4161f2..f9ea686 100644
--- a/test_set/cvp-sanity/tests/test_ntp_sync.py
+++ b/test_set/cvp-sanity/tests/test_ntp_sync.py
@@ -14,7 +14,7 @@
         param='date +%s',
         expr_form='compound')
     result = {}
-    for node, time in nodes_time.iteritems():
+    for node, time in nodes_time.items():
         if isinstance(nodes_time[node], bool):
             time = 'Cannot access node(-s)'
         if node in config.get("ntp_skipped_nodes"):