Enable Python 3.5 testing and fix tests

Fixes to a couple of places to make the python 3.5 tests pass.

Change-Id: I3f4b73b24fbe336ac6c80b7aa224a830ab7e36a6

horizon/utils/babel_extract_angular.py

@@ -52,7 +52,9 @@ class AngularGettextHTMLParser(html_parser.HTMLParser):
 
     def __init__(self):
         try:
-            super(AngularGettextHTMLParser, self).__init__()
+            super(AngularGettextHTMLParser, self).__init__(
+                convert_charrefs=False
+            )
         except TypeError:
             # handle HTMLParser not being a type on Python 2
             html_parser.HTMLParser.__init__(self)

openstack_dashboard/api/rest/json_encoder.py

@@ -50,7 +50,7 @@ class NaNJSONEncoder(json.JSONEncoder):
                     o = o.decode(_encoding)
                 return _orig_encoder(o)
 
-        def floatstr(o, allow_nan=self.allow_nan, _repr=encoder.FLOAT_REPR,
+        def floatstr(o, allow_nan=self.allow_nan, _repr=float.__repr__,
                      _inf=encoder.INFINITY, _neginf=-encoder.INFINITY):
             # Check for specials.  Note that this type of test is processor
             # and/or platform-specific, so do tests which don't depend on the

openstack_dashboard/settings.py

@@ -326,7 +326,8 @@ if os.path.exists(LOCAL_SETTINGS_DIR_PATH):
         for filename in sorted(filenames):
             if filename.endswith(".py"):
                 try:
-                    execfile(os.path.join(dirpath, filename))
+                    with open(os.path.join(dirpath, filename)) as f:
+                        exec(f.read())
                 except Exception as e:
                     logging.exception(
                         "Can not exec settings snippet %s" % filename)

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = pep8,py27dj18,py27,py34,releasenotes
+envlist = pep8,py27dj18,py27,py34,py35,releasenotes
 minversion = 1.6
 skipsdist = True
 
@@ -45,6 +45,12 @@ setenv =
   {[testenv]setenv}
   PYTHONUNBUFFERED=1
 
+[testenv:py35]
+basepython = python3.5
+setenv =
+  {[testenv]setenv}
+  PYTHONUNBUFFERED=1
+
 [testenv:pep8]
 usedevelop = True
 whitelist_externals =