Use new style python classes

6 files changed, 6 insertions, 6 deletions

diff --git a/sphinx/addnodes.py b/sphinx/addnodes.py
index c5ce4e296..124c9b6e4 100644
--- a/sphinx/addnodes.py
+++ b/sphinx/addnodes.py
@@ -14,7 +14,7 @@ import warnings
 from docutils import nodes
 
 
-class translatable:
+class translatable(object):
     """Node which supports translation.
 
     The translation goes forward with following steps:
diff --git a/sphinx/config.py b/sphinx/config.py
index f22d03be6..fdf341268 100644
--- a/sphinx/config.py
+++ b/sphinx/config.py
@@ -34,7 +34,7 @@ CONFIG_TYPE_WARNING = "The config value `{name}' has type `{current.__name__}',
                       "defaults to `{default.__name__}.'"
 
 
-class ENUM:
+class ENUM(object):
     """represents the config value should be a one of candidates.
 
     Example:
diff --git a/sphinx/environment.py b/sphinx/environment.py
index 7947838f4..61df10237 100644
--- a/sphinx/environment.py
+++ b/sphinx/environment.py
@@ -92,7 +92,7 @@ class NoUri(Exception):
     pass
 
 
-class BuildEnvironment:
+class BuildEnvironment(object):
     """
     The environment in which the ReST files are translated.
     Stores an inventory of cross-file targets and provides doctree
diff --git a/sphinx/ext/autosummary/__init__.py b/sphinx/ext/autosummary/__init__.py
index 8e784b3fd..030fec301 100644
--- a/sphinx/ext/autosummary/__init__.py
+++ b/sphinx/ext/autosummary/__init__.py
@@ -137,7 +137,7 @@ def autosummary_table_visit_html(self, node):
 
 # -- autodoc integration -------------------------------------------------------
 
-class FakeDirective:
+class FakeDirective(object):
     env = {}
     genopt = Options()
 
diff --git a/sphinx/pycode/__init__.py b/sphinx/pycode/__init__.py
index 3da887d6c..7353eacdc 100644
--- a/sphinx/pycode/__init__.py
+++ b/sphinx/pycode/__init__.py
@@ -33,7 +33,7 @@ pydriver = driver.Driver(pygrammar, convert=nodes.convert)
 
 
 # an object with attributes corresponding to token and symbol names
-class sym:
+class sym(object):
     pass
 for k, v in iteritems(pygrammar.symbol2number):
     setattr(sym, k, v)
diff --git a/sphinx/util/pycompat.py b/sphinx/util/pycompat.py
index 0f7980e82..6ff5e3567 100644
--- a/sphinx/util/pycompat.py
+++ b/sphinx/util/pycompat.py
@@ -55,7 +55,7 @@ if PY3:
         return text_type(tree)
     from html import escape as htmlescape  # noqa: >= Python 3.2
 
-    class UnicodeMixin:
+    class UnicodeMixin(object):
         """Mixin class to handle defining the proper __str__/__unicode__
         methods in Python 2 or 3."""