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, 3 insertions, 2 deletions

diff --git a/tests/unit/benchmark/contexts/test_model.py b/tests/unit/benchmark/contexts/test_model.py
index a1978e320..537a8c008 100644
--- a/tests/unit/benchmark/contexts/test_model.py
+++ b/tests/unit/benchmark/contexts/test_model.py
@@ -11,6 +11,7 @@
 
 # Unittest for yardstick.benchmark.contexts.model
 
+from __future__ import absolute_import
 import mock
 import unittest
 
@@ -119,7 +120,8 @@ class NetworkTestCase(unittest.TestCase):
 
         attrs = {'external_network': 'ext_net'}
         test_network = model.Network('foo', self.mock_context, attrs)
-        exp_router = model.Router('router', 'foo', self.mock_context, 'ext_net')
+        exp_router = model.Router('router', 'foo', self.mock_context,
+                                  'ext_net')
 
         self.assertEqual(test_network.router.stack_name, exp_router.stack_name)
         self.assertEqual(test_network.router.stack_if_name,
@@ -219,4 +221,3 @@ class ServerTestCase(unittest.TestCase):
             user=self.mock_context.user,
             key_name=self.mock_context.keypair_name,
             scheduler_hints='hints')
-