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, 10 insertions, 6 deletions

diff --git a/yardstick/dispatcher/http.py b/yardstick/dispatcher/http.py
index 98e772dd8..790086155 100644
--- a/yardstick/dispatcher/http.py
+++ b/yardstick/dispatcher/http.py
@@ -16,11 +16,13 @@
 # yardstick comment: this is a modified copy of
 # ceilometer/ceilometer/dispatcher/http.py
 
-import os
-import json
+from __future__ import absolute_import
+
 import logging
-import requests
+import os
 
+from oslo_serialization import jsonutils
+import requests
 from oslo_config import cfg
 
 from yardstick.dispatcher.base import Base as DispatchBase
@@ -81,16 +83,18 @@ class HttpDispatcher(DispatchBase):
                 case_name = v["scenario_cfg"]["tc"]
                 break
         if case_name == "":
-            LOG.error('Test result : %s', json.dumps(self.result))
+            LOG.error('Test result : %s',
+                      jsonutils.dump_as_bytes(self.result))
             LOG.error('The case_name cannot be found, no data will be posted.')
             return
 
         self.result["case_name"] = case_name
 
         try:
-            LOG.debug('Test result : %s', json.dumps(self.result))
+            LOG.debug('Test result : %s',
+                      jsonutils.dump_as_bytes(self.result))
             res = requests.post(self.target,
-                                data=json.dumps(self.result),
+                                data=jsonutils.dump_as_bytes(self.result),
                                 headers=self.headers,
                                 timeout=self.timeout)
             LOG.debug('Test result posting finished with status code'