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, 4 insertions, 2 deletions

diff --git a/yardstick/common/template_format.py b/yardstick/common/template_format.py
index 2deaf393c..2432c5dc6 100644
--- a/yardstick/common/template_format.py
+++ b/yardstick/common/template_format.py
@@ -12,8 +12,10 @@
 
 # yardstick: this file is copied from python-heatclient and slightly modified
 
-import json
+from __future__ import absolute_import
+
 import yaml
+from oslo_serialization import jsonutils
 
 if hasattr(yaml, 'CSafeLoader'):
     yaml_loader = yaml.CSafeLoader
@@ -46,7 +48,7 @@ def parse(tmpl_str):
     JSON or YAML format.
     '''
     if tmpl_str.startswith('{'):
-        tpl = json.loads(tmpl_str)
+        tpl = jsonutils.loads(tmpl_str)
     else:
         try:
             tpl = yaml.load(tmpl_str, Loader=yaml_loader)