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, 5 insertions, 3 deletions

diff --git a/tests/unit/common/test_utils.py b/tests/unit/common/test_utils.py
index a64c1f1ab..267c71312 100644
--- a/tests/unit/common/test_utils.py
+++ b/tests/unit/common/test_utils.py
@@ -9,6 +9,7 @@
 
 # Unittest for yardstick.common.utils
 
+from __future__ import absolute_import
 import os
 import mock
 import unittest
@@ -17,9 +18,10 @@ from yardstick.common import utils
 
 
 class IterSubclassesTestCase(unittest.TestCase):
-# Disclaimer: this class is a modified copy from
-# rally/tests/unit/common/plugin/test_discover.py
-# Copyright 2015: Mirantis Inc.
+    # Disclaimer: this class is a modified copy from
+    # rally/tests/unit/common/plugin/test_discover.py
+    # Copyright 2015: Mirantis Inc.
+
     def test_itersubclasses(self):
         class A(object):
             pass