Remove unnecessary object from class definitions

In Python 3, all classes are new-style classes. The object in the
definition is redundant and unnecessary.

3 files changed, 11 insertions, 11 deletions

diff --git a/sphinx/domains/__init__.py b/sphinx/domains/__init__.py
index 41db13cb6..e8c3a59dd 100644
--- a/sphinx/domains/__init__.py
+++ b/sphinx/domains/__init__.py
@@ -28,7 +28,7 @@ if False:
     from sphinx.util.typing import RoleFunction  # NOQA
 
 
-class ObjType(object):
+class ObjType:
     """
     An ObjType is the description for a type of object that a domain can
     document.  In the object_types attribute of Domain subclasses, object type
@@ -55,7 +55,7 @@ class ObjType(object):
         self.attrs.update(attrs)
 
 
-class Index(object):
+class Index:
     """
     An Index is the description for a domain-specific index.  To add an index to
     a domain, subclass Index, overriding the three name attributes:
@@ -113,7 +113,7 @@ class Index(object):
         raise NotImplementedError
 
 
-class Domain(object):
+class Domain:
     """
     A Domain is meant to be a group of "object" description directives for
     objects of a similar nature, and corresponding roles to create references to
diff --git a/sphinx/domains/cpp.py b/sphinx/domains/cpp.py
index 5d556e777..9c797cd36 100644
--- a/sphinx/domains/cpp.py
+++ b/sphinx/domains/cpp.py
@@ -3592,7 +3592,7 @@ class ASTNamespace(ASTBase):
         self.templatePrefix = templatePrefix
 
 
-class SymbolLookupResult(object):
+class SymbolLookupResult:
     def __init__(self, symbols, parentSymbol, identOrOp, templateParams, templateArgs):
         # type: (Iterator[Symbol], Symbol, Union[ASTIdentifier, ASTOperator], Any, ASTTemplateArgs) -> None  # NOQA
         self.symbols = symbols
@@ -3602,7 +3602,7 @@ class SymbolLookupResult(object):
         self.templateArgs = templateArgs
 
 
-class Symbol(object):
+class Symbol:
     debug_lookup = False
 
     def _assert_invariants(self):
@@ -4293,7 +4293,7 @@ class Symbol(object):
         return ''.join(res)
 
 
-class DefinitionParser(object):
+class DefinitionParser:
     # those without signedness and size modifiers
     # see http://en.cppreference.com/w/cpp/language/types
     _simple_fundemental_types = (
@@ -6585,7 +6585,7 @@ class CPPXRefRole(XRefRole):
         return title, target
 
 
-class CPPExprRole(object):
+class CPPExprRole:
     def __init__(self, asCode):
         if asCode:
             # render the expression as inline code
@@ -6597,7 +6597,7 @@ class CPPExprRole(object):
             self.node_type = nodes.inline
 
     def __call__(self, typ, rawtext, text, lineno, inliner, options={}, content=[]):
-        class Warner(object):
+        class Warner:
             def warn(self, msg):
                 inliner.reporter.warning(msg, line=lineno)
         text = utils.unescape(text).replace('\n', ' ')
@@ -6716,7 +6716,7 @@ class CPPDomain(Domain):
                             target, node, contnode, emitWarnings=True):
         # type: (BuildEnvironment, unicode, Builder, unicode, unicode, nodes.Node, nodes.Node, bool) -> nodes.Node  # NOQA
 
-        class Warner(object):
+        class Warner:
             def warn(self, msg):
                 if emitWarnings:
                     logger.warning(msg, location=node)
diff --git a/sphinx/domains/python.py b/sphinx/domains/python.py
index fe9bb9090..5f822aeca 100644
--- a/sphinx/domains/python.py
+++ b/sphinx/domains/python.py
@@ -114,7 +114,7 @@ def _pseudo_parse_arglist(signode, arglist):
 
 # This override allows our inline type specifiers to behave like :class: link
 # when it comes to handling "." and "~" prefixes.
-class PyXrefMixin(object):
+class PyXrefMixin:
     def make_xref(self,
                   rolename,                  # type: unicode
                   domain,                    # type: unicode
@@ -536,7 +536,7 @@ class PyClassmember(PyObject):
             return ''
 
 
-class PyDecoratorMixin(object):
+class PyDecoratorMixin:
     """
     Mixin for decorator directives.
     """