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/tests/unit/benchmark/scenarios/networking/test_sfc.py b/tests/unit/benchmark/scenarios/networking/test_sfc.py
index 618efc32e..224a43bd8 100644
--- a/tests/unit/benchmark/scenarios/networking/test_sfc.py
+++ b/tests/unit/benchmark/scenarios/networking/test_sfc.py
@@ -11,6 +11,7 @@
 
 # Unittest for yardstick.benchmark.scenarios.networking.sfc
 
+from __future__ import absolute_import
 import mock
 import unittest
 
@@ -27,7 +28,7 @@ class SfcTestCase(unittest.TestCase):
         context_cfg['target'] = dict()
         context_cfg['target']['user'] = 'root'
         context_cfg['target']['password'] = 'opnfv'
-        context_cfg['target']['ip'] = '127.0.0.1' 
+        context_cfg['target']['ip'] = '127.0.0.1'
 
         # Used in Sfc.run()
         context_cfg['host'] = dict()
@@ -58,7 +59,8 @@ class SfcTestCase(unittest.TestCase):
     @mock.patch('yardstick.benchmark.scenarios.networking.sfc.subprocess')
     def test2_run_for_success(self, mock_subprocess, mock_openstack, mock_ssh):
         # Mock a successfull SSH in Sfc.setup() and Sfc.run()
-        mock_ssh.SSH().execute.return_value = (0, 'vxlan_tool.py', 'succeeded timed out')
+        mock_ssh.SSH().execute.return_value = (
+            0, 'vxlan_tool.py', 'succeeded timed out')
         mock_openstack.get_an_IP.return_value = "127.0.0.1"
         mock_subprocess.call.return_value = 'mocked!'