Fix the readthedocs build failure

Change-Id: I3387686af5aee603fedce8a25dfdbaee96294827

doc/source/conf.py

@@ -106,7 +106,7 @@ pygments_style = 'sphinx'
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-html_theme = 'default'
+html_theme = 'classic'
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the

test-requirements.txt

@@ -2,15 +2,15 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-hacking>=0.9.2,<0.10
+hacking<0.11,>=0.10.0
 
 coverage>=3.6
 discover
 python-subunit>=0.0.18
-sphinx>=1.1.2,!=1.2.0,!=1.3b1,<1.3
-oslosphinx>=2.2.0  # Apache-2.0
-oslotest>=1.2.0  # Apache-2.0
+sphinx>=1.3.1
+oslosphinx>=2.5.0  # Apache-2.0
+oslotest>=1.10.0  # Apache-2.0
 testrepository>=0.0.18
 testscenarios>=0.4
-testtools>=0.9.36,!=1.2.0
+testtools>=1.4.0
 

vmtp/vmtp_genchart.py

@@ -98,7 +98,7 @@ prop_match = {
 subtitle_match = ['test_description', 'openstack_version', 'distro',
                   'encapsulation', 'l2agent_type']
 
-class GoogleChartsBarChart:
+class GoogleChartsBarChart(object):
     def __init__(self, results, protocols):
         self.results = results
         if protocols not in ['udp', 'tcp']: