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, 6 insertions, 2 deletions

diff --git a/tests/unit/benchmark/scenarios/availability/test_attacker_process.py b/tests/unit/benchmark/scenarios/availability/test_attacker_process.py
index eb0cce70d..d7771bd33 100644
--- a/tests/unit/benchmark/scenarios/availability/test_attacker_process.py
+++ b/tests/unit/benchmark/scenarios/availability/test_attacker_process.py
@@ -9,14 +9,18 @@
 # http://www.apache.org/licenses/LICENSE-2.0
 ##############################################################################
 
-# Unittest for yardstick.benchmark.scenarios.availability.attacker.attacker_process
+# Unittest for
+# yardstick.benchmark.scenarios.availability.attacker.attacker_process
 
+from __future__ import absolute_import
 import mock
 import unittest
 
 from yardstick.benchmark.scenarios.availability.attacker import baseattacker
 
-@mock.patch('yardstick.benchmark.scenarios.availability.attacker.attacker_process.ssh')
+
+@mock.patch(
+    'yardstick.benchmark.scenarios.availability.attacker.attacker_process.ssh')
 class AttackerServiceTestCase(unittest.TestCase):
 
     def setUp(self):