Add support for Python 3

Porting to Python3 using Openstack guidelines:
https://wiki.openstack.org/wiki/Python3

This passes unittests on Python 3.5 and passes opnfv_smoke suite

Updates:
   use six for urlparse and urlopen
   fix exception.message attribute removal
   run unittests on python3
   use unitest.mock on python 3
   fix open mock for vsperf
   fix float division by using delta/eplison comparison
   use unicode in StringIO
   use plugin/sample_config.yaml relative path from test case
   fixed apexlake unittests
   upgraded to mock 2.0.0 to match python3 unittest.mock features
   fixed flake8 issues
   implement safe JSON decode with oslo_serialization.jsonutils.dump_as_bytes()
   implement safe unicode encode/decode with oslo_utils.encodeutils

heat: convert pub key file from bytes to unicode
    pkg_resources returns raw bytes, in python3
    we have to decode this to utf-8 unicode
    so JSON can encode it for heat template

JIRA: YARDSTICK-452

Change-Id: Ib80dd1d0c0eb0592acd832b82f6a7f8f7c20bfda
Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>

1 files changed, 10 insertions, 5 deletions

diff --git a/yardstick/benchmark/scenarios/compute/cyclictest.py b/yardstick/benchmark/scenarios/compute/cyclictest.py
index 568e6e7df..76bafff2b 100644
--- a/yardstick/benchmark/scenarios/compute/cyclictest.py
+++ b/yardstick/benchmark/scenarios/compute/cyclictest.py
@@ -6,12 +6,16 @@
 # which accompanies this distribution, and is available at
 # http://www.apache.org/licenses/LICENSE-2.0
 ##############################################################################
-import pkg_resources
+from __future__ import absolute_import
+from __future__ import print_function
+
 import logging
-import json
+import os
 import re
 import time
-import os
+
+import pkg_resources
+from oslo_serialization import jsonutils
 
 import yardstick.ssh as ssh
 from yardstick.benchmark.scenarios import base
@@ -183,7 +187,7 @@ class Cyclictest(base.Scenario):
         if status:
             raise RuntimeError(stderr)
 
-        result.update(json.loads(stdout))
+        result.update(jsonutils.loads(stdout))
 
         if "sla" in self.scenario_cfg:
             sla_error = ""
@@ -236,7 +240,8 @@ def _test():    # pragma: no cover
 
     cyclictest = Cyclictest(args, ctx)
     cyclictest.run(result)
-    print result
+    print(result)
+
 
 if __name__ == '__main__':    # pragma: no cover
     _test()