New-style classes implemented for python 2.7 - #2147

AUTHORS

@@ -108,6 +108,7 @@ Michael Aquilina
 Michael Birtwell
 Michael Droettboom
 Michael Seifert
+Michal Wajszczuk
 Mike Lundy
 Ned Batchelder
 Neven Mundar

CHANGELOG.rst

@@ -21,7 +21,7 @@ Changes
 -------
 
 * Old-style classes have been changed to new-style classes in order to improve
-  compatability with Python 2. Thanks to `@mandeep`_ for the PR (`#2147`_).
+  compatibility with Python 2. Thanks to `@MichalTHEDUDE`_ and `@mandeep`_ for the PR (`#2147`_).
 
 * It is now possible to skip test classes from being collected by setting a
   ``__test__`` attribute to ``False`` in the class body (`#2007`_). Thanks
@@ -61,6 +61,7 @@ Changes
 .. _@wheerd: https://github.com/wheerd
 .. _@fogo: https://github.com/fogo
 .. _@mandeep: https://github.com/mandeep
+.. _@MichalTHEDUDE: https://github.com/MichalTHEDUDE
 .. _@unsignedint: https://github.com/unsignedint
 .. _@Kriechi: https://github.com/Kriechi
 

_pytest/vendored_packages/pluggy.py

@@ -167,7 +167,7 @@ def normalize_hookimpl_opts(opts):
     opts.setdefault("optionalhook", False)
 
 
-class _TagTracer:
+class _TagTracer(object):
     def __init__(self):
         self._tag2proc = {}
         self.writer = None
@@ -214,7 +214,7 @@ class _TagTracer:
         self._tag2proc[tags] = processor
 
 
-class _TagTracerSub:
+class _TagTracerSub(object):
     def __init__(self, root, tags):
         self.root = root
         self.tags = tags
@@ -254,7 +254,7 @@ def _wrapped_call(wrap_controller, func):
     return call_outcome.get_result()
 
 
-class _CallOutcome:
+class _CallOutcome(object):
     """ Outcome of a function call, either an exception or a proper result.
     Calling the ``get_result`` method will return the result or reraise
     the exception raised when the function was called. """
@@ -286,7 +286,7 @@ def _reraise(cls, val, tb):
 """)
 
 
-class _TracedHookExecution:
+class _TracedHookExecution(object):
     def __init__(self, pluginmanager, before, after):
         self.pluginmanager = pluginmanager
         self.before = before
@@ -580,7 +580,7 @@ class PluginManager(object):
         return orig
 
 
-class _MultiCall:
+class _MultiCall(object):
     """ execute a call into multiple python functions/methods. """
 
     # XXX note that the __multicall__ argument is supported only
@@ -673,7 +673,7 @@ def varnames(func, startindex=None):
     return x
 
 
-class _HookRelay:
+class _HookRelay(object):
     """ hook holder object for performing 1:N hook calls where N is the number
     of registered plugins.
 

doc/en/assert.rst

@@ -223,7 +223,7 @@ provides an alternative explanation for ``Foo`` objects::
 now, given this test module::
 
    # content of test_foocompare.py
-   class Foo:
+   class Foo(object):
        def __init__(self, val):
            self.val = val
 

doc/en/example/assertion/failure_demo.py

@@ -128,7 +128,7 @@ def test_attribute_multiple():
 def globf(x):
     return x+1
 
-class TestRaises:
+class TestRaises(object):
     def test_raises(self):
         s = 'qwe'
         raises(TypeError, "int(s)")
@@ -167,7 +167,7 @@ def test_dynamic_compile_shows_nicely():
 
 
 
-class TestMoreErrors:
+class TestMoreErrors(object):
     def test_complex_error(self):
         def f():
             return 44
@@ -213,23 +213,23 @@ class TestMoreErrors:
             x = 0
 
 
-class TestCustomAssertMsg:
+class TestCustomAssertMsg(object):
 
     def test_single_line(self):
-        class A:
+        class A(object):
             a = 1
         b = 2
         assert A.a == b, "A.a appears not to be b"
 
     def test_multiline(self):
-        class A:
+        class A(object):
             a = 1
         b = 2
         assert A.a == b, "A.a appears not to be b\n" \
             "or does not appear to be b\none of those"
 
     def test_custom_repr(self):
-        class JSON:
+        class JSON(object):
             a = 1
             def __repr__(self):
                 return "This is JSON\n{\n  'foo': 'bar'\n}"

doc/en/example/assertion/test_setup_flow_example.py

@@ -1,7 +1,7 @@
 def setup_module(module):
     module.TestStateFullThing.classcount = 0
 
-class TestStateFullThing:
+class TestStateFullThing(object):
     def setup_class(cls):
         cls.classcount += 1
 

doc/en/example/attic.rst

@@ -15,7 +15,7 @@ example: specifying and selecting acceptance tests
     def pytest_funcarg__accept(request):
         return AcceptFixture(request)
 
-    class AcceptFixture:
+    class AcceptFixture(object):
         def __init__(self, request):
             if not request.config.option.acceptance:
                 pytest.skip("specify -A to run acceptance tests")
@@ -61,7 +61,7 @@ extend the `accept example`_ by putting this in our test module:
         arg.tmpdir.mkdir("special")
         return arg
 
-    class TestSpecialAcceptance:
+    class TestSpecialAcceptance(object):
         def test_sometest(self, accept):
             assert accept.tmpdir.join("special").check()
 

doc/en/example/costlysetup/conftest.py

@@ -7,7 +7,7 @@ def setup(request):
     yield setup
     setup.finalize()
 
-class CostlySetup:
+class CostlySetup(object):
     def __init__(self):
         import time
         print ("performing costly setup")

doc/en/example/markers.rst

@@ -21,7 +21,7 @@ You can "mark" a test function with custom metadata like this::
         pass
     def test_another():
         pass
-    class TestClass:
+    class TestClass(object):
         def test_method(self):
             pass
 
@@ -242,7 +242,7 @@ its test methods::
     # content of test_mark_classlevel.py
     import pytest
     @pytest.mark.webtest
-    class TestClass:
+    class TestClass(object):
         def test_startup(self):
             pass
         def test_startup_and_more(self):
@@ -256,14 +256,14 @@ To remain backward-compatible with Python 2.4 you can also set a
 
     import pytest
 
-    class TestClass:
+    class TestClass(object):
         pytestmark = pytest.mark.webtest
 
 or if you need to use multiple markers you can use a list::
 
     import pytest
 
-    class TestClass:
+    class TestClass(object):
         pytestmark = [pytest.mark.webtest, pytest.mark.slowtest]
 
 You can also set a module level marker::
@@ -407,7 +407,7 @@ code you can read over all such settings.  Example::
     pytestmark = pytest.mark.glob("module", x=1)
 
     @pytest.mark.glob("class", x=2)
-    class TestClass:
+    class TestClass(object):
         @pytest.mark.glob("function", x=3)
         def test_something(self):
             pass

doc/en/example/multipython.py

@@ -16,7 +16,7 @@ def python1(request, tmpdir):
 def python2(request, python1):
     return Python(request.param, python1.picklefile)
 
-class Python:
+class Python(object):
     def __init__(self, version, picklefile):
         self.pythonpath = py.path.local.sysfind(version)
         if not self.pythonpath:

doc/en/example/parametrize.rst

@@ -168,7 +168,7 @@ only have to work a bit to construct the correct arguments for pytest's
     scenario1 = ('basic', {'attribute': 'value'})
     scenario2 = ('advanced', {'attribute': 'value2'})
 
-    class TestSampleWithScenarios:
+    class TestSampleWithScenarios(object):
         scenarios = [scenario1, scenario2]
 
         def test_demo1(self, attribute):
@@ -241,9 +241,9 @@ creates a database object for the actual test invocations::
         if 'db' in metafunc.fixturenames:
             metafunc.parametrize("db", ['d1', 'd2'], indirect=True)
 
-    class DB1:
+    class DB1(object):
         "one database object"
-    class DB2:
+    class DB2(object):
         "alternative database object"
 
     @pytest.fixture
@@ -350,7 +350,7 @@ parametrizer`_ but in a lot less code::
         metafunc.parametrize(argnames, [[funcargs[name] for name in argnames]
                 for funcargs in funcarglist])
 
-    class TestClass:
+    class TestClass(object):
         # a map specifying multiple argument sets for a test method
         params = {
             'test_equals': [dict(a=1, b=2), dict(a=3, b=3), ],

doc/en/example/pythoncollection.py

@@ -4,7 +4,7 @@
 def test_function():
     pass
 
-class TestClass:
+class TestClass(object):
     def test_method(self):
         pass
     def test_anothermethod(self):

doc/en/example/pythoncollection.rst

@@ -107,7 +107,7 @@ This would make ``pytest`` look for tests in files that match the ``check_*
 that match ``*_check``.  For example, if we have::
 
     # content of check_myapp.py
-    class CheckMyApp:
+    class CheckMyApp(object):
         def simple_check(self):
             pass
         def complex_check(self):

doc/en/example/reportingdemo.rst

@@ -550,7 +550,7 @@ get on the terminal - we are working on that)::
     self = <failure_demo.TestCustomAssertMsg object at 0xdeadbeef>
     
         def test_single_line(self):
-            class A:
+            class A(object):
                 a = 1
             b = 2
     >       assert A.a == b, "A.a appears not to be b"
@@ -564,7 +564,7 @@ get on the terminal - we are working on that)::
     self = <failure_demo.TestCustomAssertMsg object at 0xdeadbeef>
     
         def test_multiline(self):
-            class A:
+            class A(object):
                 a = 1
             b = 2
     >       assert A.a == b, "A.a appears not to be b\n" \
@@ -581,7 +581,7 @@ get on the terminal - we are working on that)::
     self = <failure_demo.TestCustomAssertMsg object at 0xdeadbeef>
     
         def test_custom_repr(self):
-            class JSON:
+            class JSON(object):
                 a = 1
                 def __repr__(self):
                     return "This is JSON\n{\n  'foo': 'bar'\n}"

doc/en/example/simple.rst

@@ -425,7 +425,7 @@ tests in a class.  Here is a test module example:
     import pytest
 
     @pytest.mark.incremental
-    class TestUserHandling:
+    class TestUserHandling(object):
         def test_login(self):
             pass
         def test_modification(self):
@@ -483,7 +483,7 @@ Here is an example for making a ``db`` fixture available in a directory:
     # content of a/conftest.py
     import pytest
 
-    class DB:
+    class DB(object):
         pass
 
     @pytest.fixture(scope="session")

doc/en/example/special.rst

@@ -28,7 +28,7 @@ will be called ahead of running any tests::
 
     # content of test_module.py
 
-    class TestHello:
+    class TestHello(object):
         @classmethod
         def callme(cls):
             print ("callme called!")
@@ -39,7 +39,7 @@ will be called ahead of running any tests::
         def test_method2(self):
             print ("test_method1 called")
 
-    class TestOther:
+    class TestOther(object):
         @classmethod
         def callme(cls):
             print ("callme other called")

doc/en/fixture.rst

@@ -557,7 +557,7 @@ and instantiate an object ``app`` where we stick the already defined
 
     import pytest
 
-    class App:
+    class App(object):
         def __init__(self, smtp):
             self.smtp = smtp
 
@@ -728,7 +728,7 @@ and declare its use in a test module via a ``usefixtures`` marker::
     import pytest
 
     @pytest.mark.usefixtures("cleandir")
-    class TestDirectoryInit:
+    class TestDirectoryInit(object):
         def test_cwd_starts_empty(self):
             assert os.listdir(os.getcwd()) == []
             with open("myfile", "w") as f:
@@ -791,7 +791,7 @@ self-contained implementation of this idea::
 
     import pytest
 
-    class DB:
+    class DB(object):
         def __init__(self):
             self.intransaction = []
         def begin(self, name):
@@ -803,7 +803,7 @@ self-contained implementation of this idea::
     def db():
         return DB()
 
-    class TestClass:
+    class TestClass(object):
         @pytest.fixture(autouse=True)
         def transact(self, request, db):
             db.begin(request.function.__name__)
@@ -861,7 +861,7 @@ into a conftest.py file **without** using ``autouse``::
 and then e.g. have a TestClass using it by declaring the need::
 
     @pytest.mark.usefixtures("transact")
-    class TestClass:
+    class TestClass(object):
         def test_method1(self):
             ...
 

doc/en/funcarg_compare.rst

@@ -24,7 +24,7 @@ resources.  Here is a basic example how we could implement
 a per-session Database object::
 
     # content of conftest.py 
-    class Database:
+    class Database(object):
         def __init__(self):
             print ("database instance created")
         def destroy(self):

doc/en/genapi.py

@@ -1,7 +1,7 @@
 import textwrap
 import inspect
 
-class Writer:
+class Writer(object):
     def __init__(self, clsname):
         self.clsname = clsname
 

doc/en/getting-started.rst

@@ -111,7 +111,7 @@ to group tests logically, in classes and modules.  Let's write a class
 containing two tests::
 
     # content of test_class.py
-    class TestClass:
+    class TestClass(object):
         def test_one(self):
             x = "this"
             assert 'h' in x

doc/en/skipping.rst

@@ -98,7 +98,7 @@ You can use the ``skipif`` decorator (and any other marker) on classes::
 
     @pytest.mark.skipif(sys.platform == 'win32',
                         reason="does not run on windows")
-    class TestPosixCalls:
+    class TestPosixCalls(object):
 
         def test_function(self):
             "will not be setup or run under 'win32' platform"

doc/en/test/attic.rst

@@ -110,7 +110,7 @@ If you want to disable a complete test class you
 can set the class-level attribute ``disabled``.
 For example, in order to avoid running some tests on Win32::
 
-    class TestPosixOnly:
+    class TestPosixOnly(object):
         disabled = sys.platform == 'win32'
 
         def test_xxx(self):

doc/en/unittest.rst

@@ -71,7 +71,7 @@ it from a unittest-style test::
 
     @pytest.fixture(scope="class")
     def db_class(request):
-        class DummyDB:
+        class DummyDB(object):
             pass
         # set a class attribute on the invoking test context 
         request.cls.db = DummyDB()

doc/en/usage.rst

@@ -226,7 +226,7 @@ to all testcases you can use ``LogXML.add_global_properties``
     def start_and_prepare_env():
         pass
 
-    class TestMe:
+    class TestMe(object):
         def test_foo(self):
             assert True
 
@@ -314,7 +314,7 @@ You can specify additional plugins to ``pytest.main``::
 
     # content of myinvoke.py
     import pytest
-    class MyPlugin:
+    class MyPlugin(object):
         def pytest_sessionfinish(self):
             print("*** test run reporting finishing")
 

testing/acceptance_test.py

@@ -8,7 +8,7 @@ import pytest
 from _pytest.main import EXIT_NOTESTSCOLLECTED, EXIT_USAGEERROR
 
 
-class TestGeneralUsage:
+class TestGeneralUsage(object):
     def test_config_error(self, testdir):
         testdir.makeconftest("""
             def pytest_configure(config):
@@ -410,7 +410,7 @@ class TestGeneralUsage:
         ])
 
 
-class TestInvocationVariants:
+class TestInvocationVariants(object):
     def test_earlyinit(self, testdir):
         p = testdir.makepyfile("""
             import pytest
@@ -502,7 +502,7 @@ class TestInvocationVariants:
         out, err = capsys.readouterr()
 
     def test_invoke_plugin_api(self, testdir, capsys):
-        class MyPlugin:
+        class MyPlugin(object):
             def pytest_addoption(self, parser):
                 parser.addoption("--myopt")
 
@@ -670,7 +670,7 @@ class TestInvocationVariants:
         assert request.config.pluginmanager.hasplugin('python')
 
 
-class TestDurations:
+class TestDurations(object):
     source = """
         import time
         frag = 0.002
@@ -741,7 +741,7 @@ class TestDurations:
         assert result.ret == 0
 
 
-class TestDurationWithFixture:
+class TestDurationWithFixture(object):
     source = """
         import time
         frag = 0.001

testing/code/test_code.py

@@ -20,7 +20,7 @@ def test_code_gives_back_name_for_not_existing_file():
     assert code.fullsource is None
 
 def test_code_with_class():
-    class A:
+    class A(object):
         pass
     pytest.raises(TypeError, "_pytest._code.Code(A)")
 
@@ -136,7 +136,7 @@ def test_frame_getargs():
                                      ('z', {'c': 'd'})]
 
 
-class TestExceptionInfo:
+class TestExceptionInfo(object):
 
     def test_bad_getsource(self):
         try:
@@ -147,7 +147,7 @@ class TestExceptionInfo:
         assert exci.getrepr()
 
 
-class TestTracebackEntry:
+class TestTracebackEntry(object):
 
     def test_getsource(self):
         try:

testing/code/test_excinfo.py

@@ -25,7 +25,7 @@ else:
 import pytest
 pytest_version_info = tuple(map(int, pytest.__version__.split(".")[:3]))
 
-class TWMock:
+class TWMock(object):
     WRITE = object()
 
     def __init__(self):
@@ -89,7 +89,7 @@ def h():
     g()
     #
 
-class TestTraceback_f_g_h:
+class TestTraceback_f_g_h(object):
     def setup_method(self, method):
         try:
             h()
@@ -386,7 +386,7 @@ def test_match_raises_error(testdir):
         "*AssertionError*Pattern*[123]*not found*",
     ])
 
-class TestFormattedExcinfo:
+class TestFormattedExcinfo(object):
 
     @pytest.fixture
     def importasmod(self, request):
@@ -472,7 +472,7 @@ raise ValueError()
         pr = FormattedExcinfo()
 
         class FakeCode(object):
-            class raw:
+            class raw(object):
                 co_filename = '?'
 
             path = '?'

testing/code/test_source.py

@@ -49,7 +49,7 @@ def test_source_from_function():
     assert str(source).startswith('def test_source_str_function():')
 
 def test_source_from_method():
-    class TestClass:
+    class TestClass(object):
         def test_method(self):
             pass
     source = _pytest._code.Source(TestClass().test_method)
@@ -119,7 +119,7 @@ def test_isparseable():
     assert not Source(" \nif 1:\npass").isparseable()
     assert not Source(chr(0)).isparseable()
 
-class TestAccesses:
+class TestAccesses(object):
     source = Source("""\
         def f(x):
             pass
@@ -143,7 +143,7 @@ class TestAccesses:
         l = [x for x in self.source]
         assert len(l) == 4
 
-class TestSourceParsingAndCompiling:
+class TestSourceParsingAndCompiling(object):
     source = Source("""\
         def f(x):
             assert (x ==
@@ -307,7 +307,7 @@ class TestSourceParsingAndCompiling:
         pytest.raises(SyntaxError, _pytest._code.compile, "lambda a,a: 0", mode='eval')
 
 def test_getstartingblock_singleline():
-    class A:
+    class A(object):
         def __init__(self, *args):
             frame = sys._getframe(1)
             self.source = _pytest._code.Frame(frame).statement
@@ -318,7 +318,7 @@ def test_getstartingblock_singleline():
     assert len(l) == 1
 
 def test_getstartingblock_multiline():
-    class A:
+    class A(object):
         def __init__(self, *args):
             frame = sys._getframe(1)
             self.source = _pytest._code.Frame(frame).statement
@@ -461,16 +461,16 @@ def test_getfslineno():
     assert lineno == A_lineno
 
     assert getfslineno(3) == ("", -1)
-    class B:
+    class B(object):
         pass
     B.__name__ = "B2"
     assert getfslineno(B)[1] == -1
 
 def test_code_of_object_instance_with_call():
-    class A:
+    class A(object):
         pass
     pytest.raises(TypeError, lambda: _pytest._code.Source(A()))
-    class WithCall:
+    class WithCall(object):
         def __call__(self):
             pass
 
@@ -559,7 +559,7 @@ x = 3
 """)
     assert str(source) == "raise ValueError(\n    23\n)"
 
-class TestTry:
+class TestTry(object):
     pytestmark = astonly
     source = """\
 try:
@@ -586,7 +586,7 @@ else:
         source = getstatement(5, self.source)
         assert str(source) == "    raise KeyError()"
 
-class TestTryFinally:
+class TestTryFinally(object):
     source = """\
 try:
     raise ValueError
@@ -604,7 +604,7 @@ finally:
 
 
 
-class TestIf:
+class TestIf(object):
     pytestmark = astonly
     source = """\
 if 1:

testing/deprecated_test.py

@@ -48,7 +48,7 @@ def test_str_args_deprecated(tmpdir, testdir):
     from _pytest.main import EXIT_NOTESTSCOLLECTED
     warnings = []
 
-    class Collect:
+    class Collect(object):
         def pytest_logwarning(self, message):
             warnings.append(message)
 

testing/python/approx.py

@@ -20,7 +20,7 @@ class MyDocTestRunner(doctest.DocTestRunner):
             example.source.strip(), got.strip(), example.want.strip()))
 
 
-class TestApprox:
+class TestApprox(object):
 
     def test_repr_string(self):
         # for some reason in Python 2.6 it is not displaying the tolerance representation correctly

testing/python/collect.py

@@ -12,7 +12,7 @@ from _pytest.main import (
 )
 
 
-class TestModule:
+class TestModule(object):
     def test_failing_import(self, testdir):
         modcol = testdir.getmodulecol("import alksdjalskdjalkjals")
         pytest.raises(Collector.CollectError, modcol.collect)
@@ -105,10 +105,10 @@ class TestModule:
                 assert name not in stdout
 
 
-class TestClass:
+class TestClass(object):
     def test_class_with_init_warning(self, testdir):
         testdir.makepyfile("""
-            class TestClass1:
+            class TestClass1(object):
                 def __init__(self):
                     pass
         """)
@@ -129,7 +129,7 @@ class TestClass:
 
     def test_setup_teardown_class_as_classmethod(self, testdir):
         testdir.makepyfile(test_mod1="""
-            class TestClassMethod:
+            class TestClassMethod(object):
                 @classmethod
                 def setup_class(cls):
                     pass
@@ -167,7 +167,7 @@ class TestClass:
         )
 
 
-class TestGenerator:
+class TestGenerator(object):
     def test_generative_functions(self, testdir):
         modcol = testdir.getmodulecol("""
             def func1(arg, arg2):
@@ -192,7 +192,7 @@ class TestGenerator:
         modcol = testdir.getmodulecol("""
             def func1(arg, arg2):
                 assert arg == arg2
-            class TestGenMethods:
+            class TestGenMethods(object):
                 def test_gen(self):
                     yield func1, 17, 3*5
                     yield func1, 42, 6*7
@@ -246,7 +246,7 @@ class TestGenerator:
         modcol = testdir.getmodulecol("""
             def func1(arg, arg2):
                 assert arg == arg2
-            class TestGenMethods:
+            class TestGenMethods(object):
                 def test_gen(self):
                     yield "m1", func1, 17, 3*5
                     yield "m2", func1, 42, 6*7
@@ -326,7 +326,7 @@ class TestGenerator:
         # has been used during collection.
         o = testdir.makepyfile("""
             setuplist = []
-            class TestClass:
+            class TestClass(object):
                 def setup_method(self, func):
                     #print "setup_method", self, func
                     setuplist.append(self)
@@ -360,7 +360,7 @@ class TestGenerator:
         assert not skipped and not failed
 
 
-class TestFunction:
+class TestFunction(object):
     def test_getmodulecollector(self, testdir):
         item = testdir.getitem("def test_func(): pass")
         modcol = item.getparent(pytest.Module)
@@ -369,7 +369,7 @@ class TestFunction:
 
     def test_function_as_object_instance_ignored(self, testdir):
         testdir.makepyfile("""
-            class A:
+            class A(object):
                 def __call__(self, tmpdir):
                     0/0
 
@@ -420,7 +420,7 @@ class TestFunction:
     def test_issue213_parametrize_value_no_equal(self, testdir):
         testdir.makepyfile("""
             import pytest
-            class A:
+            class A(object):
                 def __eq__(self, other):
                     raise ValueError("not possible")
             @pytest.mark.parametrize('arg', [A()])
@@ -551,11 +551,11 @@ class TestFunction:
         item = testdir.getitem("def test_func(): raise ValueError")
         config = item.config
 
-        class MyPlugin1:
+        class MyPlugin1(object):
             def pytest_pyfunc_call(self, pyfuncitem):
                 raise ValueError
 
-        class MyPlugin2:
+        class MyPlugin2(object):
             def pytest_pyfunc_call(self, pyfuncitem):
                 return True
 
@@ -683,7 +683,7 @@ class TestFunction:
         assert [x.originalname for x in items] == ['test_func', 'test_func']
 
 
-class TestSorting:
+class TestSorting(object):
     def test_check_equality(self, testdir):
         modcol = testdir.getmodulecol("""
             def test_pass(): pass
@@ -733,7 +733,7 @@ class TestSorting:
         assert [item.name for item in colitems] == ['test_b', 'test_a']
 
 
-class TestConftestCustomization:
+class TestConftestCustomization(object):
     def test_pytest_pycollect_module(self, testdir):
         testdir.makeconftest("""
             import pytest
@@ -847,7 +847,7 @@ def test_modulecol_roundtrip(testdir):
     assert modcol.name == newcol.name
 
 
-class TestTracebackCutting:
+class TestTracebackCutting(object):
     def test_skip_simple(self):
         excinfo = pytest.raises(pytest.skip.Exception, 'pytest.skip("xxx")')
         assert excinfo.traceback[-1].frame.code.name == "skip"
@@ -973,7 +973,7 @@ class TestTracebackCutting:
         assert filter_traceback(tb[-1])
 
 
-class TestReportInfo:
+class TestReportInfo(object):
     def test_itemreport_reportinfo(self, testdir, linecomp):
         testdir.makeconftest("""
             import pytest
@@ -998,7 +998,7 @@ class TestReportInfo:
     def test_class_reportinfo(self, testdir):
         modcol = testdir.getmodulecol("""
             # lineno 0
-            class TestClass:
+            class TestClass(object):
                 def test_hello(self): pass
         """)
         classcol = testdir.collect_by_name(modcol, "TestClass")
@@ -1033,7 +1033,7 @@ class TestReportInfo:
                 def check(x):
                     pass
                 yield check, 3
-            class TestClass:
+            class TestClass(object):
                 def test_method(self):
                     pass
        """
@@ -1042,7 +1042,7 @@ class TestReportInfo:
         # https://github.com/pytest-dev/pytest/issues/1204
         modcol = testdir.getmodulecol("""
             # lineno 0
-            class TestClass:
+            class TestClass(object):
                 def __getattr__(self, name):
                     return "this is not an int"
 
@@ -1064,7 +1064,7 @@ def test_customized_python_discovery(testdir):
     p = testdir.makepyfile("""
         def check_simple():
             pass
-        class CheckMyApp:
+        class CheckMyApp(object):
             def check_meth(self):
                 pass
     """)
@@ -1139,7 +1139,7 @@ def test_customize_through_attributes(testdir):
                 return MyClass(name, parent=collector)
     """)
     testdir.makepyfile("""
-         class MyTestClass:
+         class MyTestClass(object):
             def test_hello(self):
                 pass
     """)
@@ -1153,11 +1153,11 @@ def test_customize_through_attributes(testdir):
 
 def test_unorderable_types(testdir):
     testdir.makepyfile("""
-        class TestJoinEmpty:
+        class TestJoinEmpty(object):
             pass
 
         def make_test():
-            class Test:
+            class Test(object):
                 pass
             Test.__name__ = "TestFoo"
             return Test

testing/python/fixture.py

@@ -20,7 +20,7 @@ def test_getfuncargnames():
     def h(arg1, arg2, arg3="hello"): pass
     assert fixtures.getfuncargnames(h) == ('arg1', 'arg2')
 
-    class A:
+    class A(object):
         def f(self, arg1, arg2="hello"):
             pass
 
@@ -28,7 +28,7 @@ def test_getfuncargnames():
     if sys.version_info < (3,0):
         assert fixtures.getfuncargnames(A.f) == ('arg1',)
 
-class TestFillFixtures:
+class TestFillFixtures(object):
     def test_fillfuncargs_exposed(self):
         # used by oejskit, kept for compatibility
         assert pytest._fillfuncargs == fixtures.fillfixtures
@@ -79,7 +79,7 @@ class TestFillFixtures:
             def something(request):
                 return request.function.__name__
 
-            class TestClass:
+            class TestClass(object):
                 def test_method(self, something):
                     assert something == "test_method"
             def test_func(something):
@@ -91,7 +91,7 @@ class TestFillFixtures:
     def test_funcarg_lookup_classlevel(self, testdir):
         p = testdir.makepyfile("""
             import pytest
-            class TestClass:
+            class TestClass(object):
 
                 @pytest.fixture
                 def something(self, request):
@@ -134,7 +134,7 @@ class TestFillFixtures:
             def spam():
                 return 'spam'
 
-            class TestSpam:
+            class TestSpam(object):
 
                  @pytest.fixture
                  def spam(self, spam):
@@ -463,7 +463,7 @@ class TestFillFixtures:
         assert result.ret == 0
 
 
-class TestRequestBasic:
+class TestRequestBasic(object):
     def test_request_attributes(self, testdir):
         item = testdir.getitem("""
             import pytest
@@ -484,7 +484,7 @@ class TestRequestBasic:
     def test_request_attributes_method(self, testdir):
         item, = testdir.getitems("""
             import pytest
-            class TestB:
+            class TestB(object):
 
                 @pytest.fixture
                 def something(self, request):
@@ -502,7 +502,7 @@ class TestRequestBasic:
             @pytest.fixture
             def something(request):
                 pass
-            class TestClass:
+            class TestClass(object):
                 def test_method(self, something):
                     pass
         """)
@@ -704,7 +704,7 @@ class TestRequestBasic:
             def test_func():
                 pass
 
-            class TestClass:
+            class TestClass(object):
                 @pytest.fixture(scope="class", autouse=True)
                 def setup_class(self):
                     l.append("class")
@@ -771,7 +771,7 @@ class TestRequestBasic:
         reprec = testdir.inline_run()
         reprec.assertoutcome(passed=2)
 
-class TestRequestMarking:
+class TestRequestMarking(object):
     def test_applymarker(self, testdir):
         item1,item2 = testdir.getitems("""
             import pytest
@@ -779,7 +779,7 @@ class TestRequestMarking:
             @pytest.fixture
             def something(request):
                 pass
-            class TestClass:
+            class TestClass(object):
                 def test_func1(self, something):
                     pass
                 def test_func2(self, something):
@@ -831,7 +831,7 @@ class TestRequestMarking:
         reprec = testdir.inline_run()
         reprec.assertoutcome(passed=2)
 
-class TestRequestCachedSetup:
+class TestRequestCachedSetup(object):
     def test_request_cachedsetup_defaultmodule(self, testdir):
         reprec = testdir.inline_runsource("""
             mysetup = ["hello",].pop
@@ -844,7 +844,7 @@ class TestRequestCachedSetup:
 
             def test_func1(something):
                 assert something == "hello"
-            class TestClass:
+            class TestClass(object):
                 def test_func1a(self, something):
                     assert something == "hello"
         """)
@@ -862,7 +862,7 @@ class TestRequestCachedSetup:
                 assert something == "hello3"
             def test_func2(something):
                 assert something == "hello2"
-            class TestClass:
+            class TestClass(object):
                 def test_func1a(self, something):
                     assert something == "hello"
                 def test_func2b(self, something):
@@ -996,7 +996,7 @@ class TestRequestCachedSetup:
             "*ZeroDivisionError*",
         ])
 
-class TestFixtureUsages:
+class TestFixtureUsages(object):
     def test_noargfixturedec(self, testdir):
         testdir.makepyfile("""
             import pytest
@@ -1138,7 +1138,7 @@ class TestFixtureUsages:
     def test_factory_setup_as_classes_fails(self, testdir):
         testdir.makepyfile("""
             import pytest
-            class arg1:
+            class arg1(object):
                 def __init__(self, request):
                     self.x = 1
             arg1 = pytest.fixture()(arg1)
@@ -1172,7 +1172,7 @@ class TestFixtureUsages:
                 request.cls.hello = "world"
                 l.append(1)
 
-            class TestClass:
+            class TestClass(object):
                 def test_one(self):
                     assert self.hello == "world"
                     assert len(l) == 1
@@ -1198,7 +1198,7 @@ class TestFixtureUsages:
 
         """)
         testdir.makepyfile("""
-            class TestClass:
+            class TestClass(object):
                 def test_one(self):
                     assert self.hello == "world"
                 def test_two(self):
@@ -1217,7 +1217,7 @@ class TestFixtureUsages:
         testdir.makepyfile("""
             import pytest
 
-            class TestClass:
+            class TestClass(object):
                 @pytest.fixture
                 def setup1(self, request):
                     assert self == request.instance
@@ -1256,7 +1256,7 @@ class TestFixtureUsages:
         assert l == [1,2, 10,20]
 
 
-class TestFixtureManagerParseFactories:
+class TestFixtureManagerParseFactories(object):
 
     @pytest.fixture
     def testdir(self, request):
@@ -1280,7 +1280,7 @@ class TestFixtureManagerParseFactories:
 
     def test_parsefactories_evil_objects_issue214(self, testdir):
         testdir.makepyfile("""
-            class A:
+            class A(object):
                 def __call__(self):
                     pass
                 def __getattr__(self, name):
@@ -1311,7 +1311,7 @@ class TestFixtureManagerParseFactories:
             @pytest.fixture
             def hello(request):
                 return "module"
-            class TestClass:
+            class TestClass(object):
                 @pytest.fixture
                 def hello(self, request):
                     return "class"
@@ -1360,7 +1360,7 @@ class TestFixtureManagerParseFactories:
             reprec.assertoutcome(passed=2)
 
 
-class TestAutouseDiscovery:
+class TestAutouseDiscovery(object):
 
     @pytest.fixture
     def testdir(self, testdir):
@@ -1402,14 +1402,14 @@ class TestAutouseDiscovery:
     def test_two_classes_separated_autouse(self, testdir):
         testdir.makepyfile("""
             import pytest
-            class TestA:
+            class TestA(object):
                 l = []
                 @pytest.fixture(autouse=True)
                 def setup1(self):
                     self.l.append(1)
                 def test_setup1(self):
                     assert self.l == [1]
-            class TestB:
+            class TestB(object):
                 l = []
                 @pytest.fixture(autouse=True)
                 def setup2(self):
@@ -1423,7 +1423,7 @@ class TestAutouseDiscovery:
     def test_setup_at_classlevel(self, testdir):
         testdir.makepyfile("""
             import pytest
-            class TestClass:
+            class TestClass(object):
                 @pytest.fixture(autouse=True)
                 def permethod(self, request):
                     request.instance.funcname = request.function.__name__
@@ -1505,13 +1505,13 @@ class TestAutouseDiscovery:
             def test_x():
                 assert l == ["module"]
 
-            class TestA:
+            class TestA(object):
                 @pytest.fixture(autouse=True)
                 def append2(self):
                     l.append("A")
                 def test_hello(self):
                     assert l == ["module", "module", "A"], l
-            class TestA2:
+            class TestA2(object):
                 def test_world(self):
                     assert l == ["module", "module", "A", "module"], l
         """)
@@ -1519,7 +1519,7 @@ class TestAutouseDiscovery:
         reprec.assertoutcome(passed=3)
 
 
-class TestAutouseManagement:
+class TestAutouseManagement(object):
     def test_autouse_conftest_mid_directory(self, testdir):
         pkgdir = testdir.mkpydir("xyz123")
         pkgdir.join("conftest.py").write(_pytest._code.Source("""
@@ -1654,10 +1654,10 @@ class TestAutouseManagement:
         testdir.makepyfile("""
             import pytest
 
-            class TestClass:
+            class TestClass(object):
                 def test_1(self):
                     pass
-            class TestClass2:
+            class TestClass2(object):
                 def test_2(self):
                     pass
         """)
@@ -1682,7 +1682,7 @@ class TestAutouseManagement:
             def mappend():
                 l.append(1)
 
-            class TestHallo:
+            class TestHallo(object):
                 def test_method(self):
                     assert l == [1,3,2]
         """)
@@ -1696,7 +1696,7 @@ class TestAutouseManagement:
             def pytest_generate_tests(metafunc):
                 if metafunc.cls is not None:
                     metafunc.parametrize("item", [1,2], scope="class")
-            class TestClass:
+            class TestClass(object):
                 @pytest.fixture(scope="class", autouse=True)
                 def addteardown(self, item, request):
                     l.append("setup-%d" % item)
@@ -1756,7 +1756,7 @@ class TestAutouseManagement:
         reprec.assertoutcome(passed=2)
 
 
-class TestFixtureMarker:
+class TestFixtureMarker(object):
     def test_parametrize(self, testdir):
         testdir.makepyfile("""
             import pytest
@@ -1822,7 +1822,7 @@ class TestFixtureMarker:
             def test_2(arg):
                 assert arg == 1
                 assert len(l) == 1
-            class TestClass:
+            class TestClass(object):
                 def test3(self, arg):
                     assert arg == 1
                     assert len(l) == 1
@@ -1916,7 +1916,7 @@ class TestFixtureMarker:
             def test_2(arg):
                 assert arg == 1
                 assert len(l) == 1
-            class TestClass:
+            class TestClass(object):
                 def test3(self, arg):
                     assert arg == 1
                     assert len(l) == 1
@@ -2135,12 +2135,12 @@ class TestFixtureMarker:
         testdir.makepyfile("""
             import pytest
 
-            class TestClass2:
+            class TestClass2(object):
                 def test_1(self):
                     pass
                 def test_2(self):
                     pass
-            class TestClass:
+            class TestClass(object):
                 def test_3(self):
                     pass
         """)
@@ -2213,7 +2213,7 @@ class TestFixtureMarker:
 
             l = []
 
-            class TestClass:
+            class TestClass(object):
                 @classmethod
                 @pytest.fixture(scope="class", autouse=True)
                 def setup1(self, request, param1):
@@ -2273,7 +2273,7 @@ class TestFixtureMarker:
         testpath = testdir.makepyfile("""
             import pytest
 
-            class Box:
+            class Box(object):
                 value = 0
 
             @pytest.fixture(scope='class')
@@ -2284,11 +2284,11 @@ class TestFixtureMarker:
             def test_a(a):
                 assert a == 1
 
-            class Test1:
+            class Test1(object):
                 def test_b(self, a):
                     assert a == 2
 
-            class Test2:
+            class Test2(object):
                 def test_c(self, a):
                     assert a == 3""")
         reprec = testdir.inline_run(testpath)
@@ -2402,11 +2402,11 @@ class TestFixtureMarker:
                 request.addfinalizer(lambda: l.append("fin %s" % request.param))
                 return request.param
 
-            class TestGreetings:
+            class TestGreetings(object):
                 def test_hello(self, human):
                     l.append("test_hello")
 
-            class TestMetrics:
+            class TestMetrics(object):
                 def test_name(self, human):
                     l.append("test_name")
 
@@ -2499,7 +2499,7 @@ class TestFixtureMarker:
             '*test_foo*beta*'])
 
 
-class TestRequestScopeAccess:
+class TestRequestScopeAccess(object):
     pytestmark = pytest.mark.parametrize(("scope", "ok", "error"),[
         ["session", "", "fspath class function module"],
         ["module", "module fspath", "cls function"],
@@ -2543,7 +2543,7 @@ class TestRequestScopeAccess:
         reprec = testdir.inline_run()
         reprec.assertoutcome(passed=1)
 
-class TestErrors:
+class TestErrors(object):
     def test_subfactory_missing_funcarg(self, testdir):
         testdir.makepyfile("""
             import pytest
@@ -2607,7 +2607,7 @@ class TestErrors:
             "*1 error*",
         ])
 
-class TestShowFixtures:
+class TestShowFixtures(object):
     def test_funcarg_compat(self, testdir):
         config = testdir.parseconfigure("--funcargs")
         assert config.option.showfixtures
@@ -2770,7 +2770,7 @@ class TestShowFixtures:
 
 
 @pytest.mark.parametrize('flavor', ['fixture', 'yield_fixture'])
-class TestContextManagerFixtureFuncs:
+class TestContextManagerFixtureFuncs(object):
 
     def test_simple(self, testdir, flavor):
         testdir.makepyfile("""
@@ -2877,7 +2877,7 @@ class TestContextManagerFixtureFuncs:
         result = testdir.runpytest("-s")
         result.stdout.fnmatch_lines("*mew*")
 
-class TestParameterizedSubRequest:
+class TestParameterizedSubRequest(object):
     def test_call_from_fixture(self, testdir):
         testfile = testdir.makepyfile("""
             import pytest

testing/python/integration.py

@@ -3,7 +3,7 @@ from _pytest import python
 from _pytest import runner
 
 
-class TestOEJSKITSpecials:
+class TestOEJSKITSpecials(object):
     def test_funcarg_non_pycollectobj(self, testdir): # rough jstests usage
         testdir.makeconftest("""
             import pytest
@@ -19,7 +19,7 @@ class TestOEJSKITSpecials:
             @pytest.fixture
             def arg1(request):
                 return 42
-            class MyClass:
+            class MyClass(object):
                 pass
         """)
         # this hook finds funcarg factories
@@ -48,7 +48,7 @@ class TestOEJSKITSpecials:
             @pytest.fixture
             def arg1(request):
                 return 42
-            class MyClass:
+            class MyClass(object):
                 pass
         """)
         # this hook finds funcarg factories
@@ -76,7 +76,7 @@ def test_wrapped_getfslineno():
     fs2, lineno2 = python.getfslineno(wrap)
     assert lineno > lineno2, "getfslineno does not unwrap correctly"
 
-class TestMockDecoration:
+class TestMockDecoration(object):
     def test_wrapped_getfuncargnames(self):
         from _pytest.compat import getfuncargnames
 
@@ -207,7 +207,7 @@ class TestMockDecoration:
             @patch('os.getcwd')
             @patch('os.path')
             @mark.slow
-            class TestSimple:
+            class TestSimple(object):
                 def test_simple_thing(self, mock_path, mock_getcwd):
                     pass
         """)
@@ -215,7 +215,7 @@ class TestMockDecoration:
         reprec.assertoutcome(passed=1)
 
 
-class TestReRunTests:
+class TestReRunTests(object):
     def test_rerun(self, testdir):
         testdir.makeconftest("""
             from _pytest.runner import runtestprotocol
@@ -251,7 +251,7 @@ def test_pytestconfig_is_session_scoped():
     assert pytestconfig._pytestfixturefunction.scope == "session"
 
 
-class TestNoselikeTestAttribute:
+class TestNoselikeTestAttribute(object):
     def test_module_with_global_test(self, testdir):
         testdir.makepyfile("""
             __test__ = False
@@ -270,7 +270,7 @@ class TestNoselikeTestAttribute:
                 pass
             test_func.__test__ = False
 
-            class TestSome:
+            class TestSome(object):
                 __test__ = False
                 def test_method(self):
                     pass
@@ -328,7 +328,7 @@ class TestNoselikeTestAttribute:
 
 
 @pytest.mark.issue351
-class TestParameterize:
+class TestParameterize(object):
 
     def test_idfn_marker(self, testdir):
         testdir.makepyfile("""

testing/python/metafunc.py

@@ -13,12 +13,12 @@ from hypothesis import strategies
 PY3 = sys.version_info >= (3, 0)
 
 
-class TestMetafunc:
+class TestMetafunc(object):
     def Metafunc(self, func):
         # the unit tests of this class check if things work correctly
         # on the funcarg level, so we don't need a full blown
         # initiliazation
-        class FixtureInfo:
+        class FixtureInfo(object):
             name2fixturedefs = None
 
             def __init__(self, names):
@@ -68,7 +68,7 @@ class TestMetafunc:
         def func(arg1): pass
         metafunc = self.Metafunc(func)
 
-        class obj: pass
+        class obj(object): pass
 
         metafunc.addcall(param=obj)
         metafunc.addcall(param=obj)
@@ -83,7 +83,7 @@ class TestMetafunc:
 
         metafunc = self.Metafunc(func)
 
-        class obj: pass
+        class obj(object): pass
 
         metafunc.addcall(funcargs={"x": 2})
         metafunc.addcall(funcargs={"x": 3})
@@ -150,7 +150,7 @@ class TestMetafunc:
         def func(x, y): pass
         metafunc = self.Metafunc(func)
 
-        class A:
+        class A(object):
             pass
 
         metafunc.parametrize("x", [A(), A()])
@@ -601,7 +601,7 @@ class TestMetafunc:
             pytestmark = pytest.mark.parametrize("x", [1,2])
             def test_func(x):
                 assert 0, x
-            class TestClass:
+            class TestClass(object):
                 pytestmark = pytest.mark.parametrize("y", [3,4])
                 def test_meth(self, x, y):
                     assert 0, x
@@ -672,7 +672,7 @@ class TestMetafunc:
         assert fixtures._format_args(function4) == "(arg1, *args, **kwargs)"
 
 
-class TestMetafuncFunctional:
+class TestMetafuncFunctional(object):
     def test_attributes(self, testdir):
         p = testdir.makepyfile("""
             # assumes that generate/provide runs in the same process
@@ -691,7 +691,7 @@ class TestMetafuncFunctional:
                 assert metafunc.function == test_function
                 assert metafunc.cls is None
 
-            class TestClass:
+            class TestClass(object):
                 def test_method(self, metafunc, pytestconfig):
                     assert metafunc.config == pytestconfig
                     assert metafunc.module.__name__ == __name__
@@ -716,7 +716,7 @@ class TestMetafuncFunctional:
             def pytest_generate_tests(metafunc):
                 metafunc.addcall(funcargs=dict(arg1=1, arg2=1))
 
-            class TestClass:
+            class TestClass(object):
                 def test_myfunc(self, arg1, arg2):
                     assert arg1 == arg2
         """)
@@ -756,7 +756,7 @@ class TestMetafuncFunctional:
             def pytest_generate_tests(metafunc):
                 assert 'xyz' not in metafunc.fixturenames
 
-            class TestHello:
+            class TestHello(object):
                 def test_hello(xyz):
                     pass
         """)
@@ -782,7 +782,7 @@ class TestMetafuncFunctional:
             def arg2(request):
                 return request.param[1]
 
-            class TestClass:
+            class TestClass(object):
                 def test_myfunc(self, arg1, arg2):
                     assert arg1 == arg2
         """)
@@ -795,7 +795,7 @@ class TestMetafuncFunctional:
 
     def test_generate_tests_in_class(self, testdir):
         p = testdir.makepyfile("""
-            class TestClass:
+            class TestClass(object):
                 def pytest_generate_tests(self, metafunc):
                     metafunc.addcall(funcargs={'hello': 'world'}, id="hello")
 
@@ -814,7 +814,7 @@ class TestMetafuncFunctional:
                 metafunc.addcall({'arg1': 10})
                 metafunc.addcall({'arg1': 20})
 
-            class TestClass:
+            class TestClass(object):
                 def test_func(self, arg1):
                     assert not hasattr(self, 'x')
                     self.x = 1
@@ -831,7 +831,7 @@ class TestMetafuncFunctional:
             def pytest_generate_tests(metafunc):
                 metafunc.addcall({'arg1': 1})
 
-            class TestClass:
+            class TestClass(object):
                 def test_method(self, arg1):
                     assert arg1 == self.val
                 def setup_method(self, func):
@@ -1117,7 +1117,7 @@ class TestMetafuncFunctional:
         assert expectederror in failures[0].longrepr.reprcrash.message
 
 
-class TestMetafuncFunctionalAuto:
+class TestMetafuncFunctionalAuto(object):
     """
     Tests related to automatically find out the correct scope for parametrized tests (#1832).
     """
@@ -1236,7 +1236,7 @@ class TestMetafuncFunctionalAuto:
         assert output.count('preparing foo-3') == 1
 
 
-class TestMarkersWithParametrization:
+class TestMarkersWithParametrization(object):
     pytestmark = pytest.mark.issue308
     def test_simple_mark(self, testdir):
         s = """

testing/python/raises.py

@@ -2,7 +2,7 @@ import pytest
 import sys
 
 
-class TestRaises:
+class TestRaises(object):
     def test_raises(self):
         source = "int('qwe')"
         excinfo = pytest.raises(ValueError, source)
@@ -20,7 +20,7 @@ class TestRaises:
         pytest.raises(ValueError, int, 'hello')
 
     def test_raises_callable_no_exception(self):
-        class A:
+        class A(object):
             def __call__(self):
                 pass
         try:

testing/test_argcomplete.py

@@ -69,7 +69,7 @@ class FilesCompleter(object):
                 completion += [f + '/' for f in anticomp]
         return completion
 
-class TestArgComplete:
+class TestArgComplete(object):
     @pytest.mark.skipif("sys.platform in ('win32', 'darwin')")
     def test_compare_with_compgen(self):
         from _pytest._argcomplete import FastFilesCompleter

testing/test_assertion.py

@@ -25,7 +25,7 @@ def mock_config():
     return Config()
 
 
-class TestImportHookInstallation:
+class TestImportHookInstallation(object):
 
     @pytest.mark.parametrize('initial_conftest', [True, False])
     @pytest.mark.parametrize('mode', ['plain', 'rewrite'])
@@ -159,7 +159,7 @@ class TestImportHookInstallation:
 
             plugin_state = "{plugin_state}"
 
-            class DummyDistInfo:
+            class DummyDistInfo(object):
                 project_name = 'spam'
                 version = '1.0'
 
@@ -174,7 +174,7 @@ class TestImportHookInstallation:
                                 'hampkg/__init__.py']
                     return []
 
-            class DummyEntryPoint:
+            class DummyEntryPoint(object):
                 name = 'spam'
                 module_name = 'spam.py'
                 attrs = ()
@@ -257,7 +257,7 @@ class TestImportHookInstallation:
                                        'pytest_tests_internal_non_existing2')
 
 
-class TestBinReprIntegration:
+class TestBinReprIntegration(object):
 
     def test_pytest_assertrepr_compare_called(self, testdir):
         testdir.makeconftest("""
@@ -288,7 +288,7 @@ def callequal(left, right, verbose=False):
     return plugin.pytest_assertrepr_compare(config, '==', left, right)
 
 
-class TestAssert_reprcompare:
+class TestAssert_reprcompare(object):
     def test_different_types(self):
         assert callequal([0, 1], 'foo') is None
 
@@ -442,7 +442,7 @@ class TestAssert_reprcompare:
         assert len(expl) > 1
 
     def test_list_bad_repr(self):
-        class A:
+        class A(object):
             def __repr__(self):
                 raise ValueError(42)
         expl = callequal([], [A()])
@@ -501,7 +501,7 @@ class TestAssert_reprcompare:
         assert msg
 
 
-class TestFormatExplanation:
+class TestFormatExplanation(object):
 
     def test_special_chars_full(self, testdir):
         # Issue 453, for the bug this would raise IndexError
@@ -593,7 +593,7 @@ class TestFormatExplanation:
         assert util.format_explanation(expl) == res
 
 
-class TestTruncateExplanation:
+class TestTruncateExplanation(object):
 
     """ Confirm assertion output is truncated as expected """
 

testing/test_assertrewrite.py

@@ -57,7 +57,7 @@ def getmsg(f, extra_ns=None, must_pass=False):
             pytest.fail("function didn't raise at all")
 
 
-class TestAssertionRewrite:
+class TestAssertionRewrite(object):
 
     def test_place_initial_imports(self):
         s = """'Doc string'\nother = stuff"""
@@ -333,7 +333,7 @@ class TestAssertionRewrite:
     @pytest.mark.skipif("sys.version_info < (3,5)")
     def test_at_operator_issue1290(self, testdir):
         testdir.makepyfile("""
-            class Matrix:
+            class Matrix(object):
                 def __init__(self, num):
                     self.num = num
                 def __matmul__(self, other):
@@ -515,7 +515,7 @@ class TestAssertionRewrite:
         assert r"where 1 = \n{ \n~ \n}.a" in util._format_lines([getmsg(f)])[0]
 
 
-class TestRewriteOnImport:
+class TestRewriteOnImport(object):
 
     def test_pycache_is_a_file(self, testdir):
         testdir.tmpdir.join("__pycache__").write("Hello")
@@ -884,7 +884,7 @@ class TestAssertionRewriteHookDetails(object):
         """
         path = testdir.mkpydir("foo")
         path.join("test_foo.py").write(_pytest._code.Source("""
-            class Test:
+            class Test(object):
                 def test_foo(self):
                     import pkgutil
                     data = pkgutil.get_data('foo.test_foo', 'data.txt')
@@ -912,7 +912,7 @@ def test_issue731(testdir):
     assert 'unbalanced braces' not in result.stdout.str()
 
 
-class TestIssue925():
+class TestIssue925(object):
     def test_simple_case(self, testdir):
         testdir.makepyfile("""
         def test_ternary_display():

testing/test_cache.py

@@ -7,7 +7,7 @@ import shutil
 
 pytest_plugins = "pytester",
 
-class TestNewAPI:
+class TestNewAPI(object):
     def test_config_cache_makedir(self, testdir):
         testdir.makeini("[pytest]")
         config = testdir.parseconfigure()
@@ -129,7 +129,7 @@ def test_cache_show(testdir):
     ])
 
 
-class TestLastFailed:
+class TestLastFailed(object):
 
     def test_lastfailed_usecase(self, testdir, monkeypatch):
         monkeypatch.setenv("PYTHONDONTWRITEBYTECODE", 1)

testing/test_capture.py

@@ -55,7 +55,7 @@ def StdCapture(out=True, err=True, in_=True):
     return capture.MultiCapture(out, err, in_, Capture=capture.SysCapture)
 
 
-class TestCaptureManager:
+class TestCaptureManager(object):
     def test_getmethod_default_no_fd(self, monkeypatch):
         from _pytest.capture import pytest_addoption
         from _pytest.config import Parser
@@ -154,7 +154,7 @@ def test_collect_capturing(testdir):
     ])
 
 
-class TestPerTestCapturing:
+class TestPerTestCapturing(object):
     def test_capture_and_fixtures(self, testdir):
         p = testdir.makepyfile("""
             def setup_module(mod):
@@ -275,7 +275,7 @@ class TestPerTestCapturing:
         ])
 
 
-class TestLoggingInteraction:
+class TestLoggingInteraction(object):
     def test_logging_stream_ownership(self, testdir):
         p = testdir.makepyfile("""
             def test_logging():
@@ -395,7 +395,7 @@ class TestLoggingInteraction:
         assert 'operation on closed file' not in result.stderr.str()
 
 
-class TestCaptureFixture:
+class TestCaptureFixture(object):
     @pytest.mark.parametrize("opt", [[], ["-s"]])
     def test_std_functional(self, testdir, opt):
         reprec = testdir.inline_runsource("""
@@ -622,7 +622,7 @@ def test_error_during_readouterr(testdir):
     ])
 
 
-class TestTextIO:
+class TestTextIO(object):
     def test_text(self):
         f = capture.TextIO()
         f.write("hello")
@@ -737,7 +737,7 @@ def lsof_check():
     assert len2 < len1 + 3, out2
 
 
-class TestFDCapture:
+class TestFDCapture(object):
     pytestmark = needsosdup
 
     def test_simple(self, tmpfile):
@@ -832,7 +832,7 @@ def saved_fd(fd):
         os.close(new_fd)
 
 
-class TestStdCapture:
+class TestStdCapture(object):
     captureclass = staticmethod(StdCapture)
 
     @contextlib.contextmanager
@@ -990,7 +990,7 @@ class TestStdCaptureFD(TestStdCapture):
                 cap.stop_capturing()
 
 
-class TestStdCaptureFDinvalidFD:
+class TestStdCaptureFDinvalidFD(object):
     pytestmark = needsosdup
 
     def test_stdcapture_fd_invalid_fd(self, testdir):

testing/test_collection.py

@@ -2,7 +2,7 @@ import pytest, py
 
 from _pytest.main import Session, EXIT_NOTESTSCOLLECTED
 
-class TestCollector:
+class TestCollector(object):
     def test_collect_versus_item(self):
         from pytest import Collector, Item
         assert not issubclass(Collector, Item)
@@ -50,7 +50,7 @@ class TestCollector:
 
     def test_getparent(self, testdir):
         modcol = testdir.getmodulecol("""
-            class TestClass:
+            class TestClass(object):
                  def test_foo():
                      pass
         """)
@@ -88,7 +88,7 @@ class TestCollector:
     def test_can_skip_class_with_test_attr(self, testdir):
         """Assure test class is skipped when using `__test__=False` (See #2007)."""
         testdir.makepyfile("""
-            class TestFoo():
+            class TestFoo(object):
                 __test__ = False
                 def __init__(self):
                     pass
@@ -101,7 +101,7 @@ class TestCollector:
             '*no tests ran in*',
         ])
 
-class TestCollectFS:
+class TestCollectFS(object):
     def test_ignored_certain_directories(self, testdir):
         tmpdir = testdir.tmpdir
         tmpdir.ensure("build", 'test_notfound.py')
@@ -163,11 +163,11 @@ class TestCollectFS:
             assert [x.name for x in items] == ['test_%s' % dirname]
 
 
-class TestCollectPluginHookRelay:
+class TestCollectPluginHookRelay(object):
     def test_pytest_collect_file(self, testdir):
         wascalled = []
 
-        class Plugin:
+        class Plugin(object):
             def pytest_collect_file(self, path, parent):
                 if not path.basename.startswith("."):
                     # Ignore hidden files, e.g. .testmondata.
@@ -181,7 +181,7 @@ class TestCollectPluginHookRelay:
     def test_pytest_collect_directory(self, testdir):
         wascalled = []
 
-        class Plugin:
+        class Plugin(object):
             def pytest_collect_directory(self, path, parent):
                 wascalled.append(path.basename)
 
@@ -192,7 +192,7 @@ class TestCollectPluginHookRelay:
         assert "world" in wascalled
 
 
-class TestPrunetraceback:
+class TestPrunetraceback(object):
 
     def test_custom_repr_failure(self, testdir):
         p = testdir.makepyfile("""
@@ -238,7 +238,7 @@ class TestPrunetraceback:
         ])
 
 
-class TestCustomConftests:
+class TestCustomConftests(object):
     def test_ignore_collect_path(self, testdir):
         testdir.makeconftest("""
             def pytest_ignore_collect(path, config):
@@ -333,7 +333,7 @@ class TestCustomConftests:
             "*test_x*"
         ])
 
-class TestSession:
+class TestSession(object):
     def test_parsearg(self, testdir):
         p = testdir.makepyfile("def test_func(): pass")
         subdir = testdir.mkdir("sub")
@@ -391,7 +391,7 @@ class TestSession:
 
     def test_collect_protocol_method(self, testdir):
         p = testdir.makepyfile("""
-            class TestClass:
+            class TestClass(object):
                 def test_method(self):
                     pass
         """)
@@ -490,7 +490,7 @@ class TestSession:
 
     def test_find_byid_without_instance_parents(self, testdir):
         p = testdir.makepyfile("""
-            class TestClass:
+            class TestClass(object):
                 def test_method(self):
                     pass
         """)
@@ -500,7 +500,7 @@ class TestSession:
         item, = items
         assert item.nodeid.endswith("TestClass::()::test_method")
 
-class Test_getinitialnodes:
+class Test_getinitialnodes(object):
     def test_global_file(self, testdir, tmpdir):
         x = tmpdir.ensure("x.py")
         with tmpdir.as_cwd():
@@ -527,7 +527,7 @@ class Test_getinitialnodes:
         for col in col.listchain():
             assert col.config is config
 
-class Test_genitems:
+class Test_genitems(object):
     def test_check_collect_hashes(self, testdir):
         p = testdir.makepyfile("""
             def test_1():
@@ -550,7 +550,7 @@ class Test_genitems:
             def testone():
                 pass
 
-            class TestX:
+            class TestX(object):
                 def testmethod_one(self):
                     pass
 
@@ -583,11 +583,11 @@ class Test_genitems:
             python_functions = *_test test
         """)
         p = testdir.makepyfile('''
-            class MyTestSuite:
+            class MyTestSuite(object):
                 def x_test(self):
                     pass
 
-            class TestCase:
+            class TestCase(object):
                 def test_y(self):
                     pass
         ''')
@@ -602,7 +602,7 @@ def test_matchnodes_two_collections_same_file(testdir):
         def pytest_configure(config):
             config.pluginmanager.register(Plugin2())
 
-        class Plugin2:
+        class Plugin2(object):
             def pytest_collect_file(self, path, parent):
                 if path.ext == ".abc":
                     return MyFile2(path, parent)
@@ -634,7 +634,7 @@ def test_matchnodes_two_collections_same_file(testdir):
     ])
 
 
-class TestNodekeywords:
+class TestNodekeywords(object):
     def test_no_under(self, testdir):
         modcol = testdir.getmodulecol("""
             def test_pass(): pass

testing/test_config.py

@@ -4,7 +4,7 @@ import _pytest._code
 from _pytest.config import getcfg, get_common_ancestor, determine_setup
 from _pytest.main import EXIT_NOTESTSCOLLECTED
 
-class TestParseIni:
+class TestParseIni(object):
 
     @pytest.mark.parametrize('section, filename',
                              [('pytest', 'pytest.ini'), ('tool:pytest', 'setup.cfg')])
@@ -84,7 +84,7 @@ class TestParseIni:
         result = testdir.inline_run("--confcutdir=.")
         assert result.ret == 0
 
-class TestConfigCmdlineParsing:
+class TestConfigCmdlineParsing(object):
     def test_parsing_again_fails(self, testdir):
         config = testdir.parseconfig()
         pytest.raises(AssertionError, lambda: config.parse([]))
@@ -115,7 +115,7 @@ class TestConfigCmdlineParsing:
         ret = pytest.main("-c " + temp_cfg_file)
         assert ret == _pytest.main.EXIT_OK
 
-class TestConfigAPI:
+class TestConfigAPI(object):
     def test_config_trace(self, testdir):
         config = testdir.parseconfig()
         l = []
@@ -304,7 +304,7 @@ class TestConfigAPI:
         assert config.getoption('confcutdir') == str(testdir.tmpdir.join('dir'))
 
 
-class TestConfigFromdictargs:
+class TestConfigFromdictargs(object):
     def test_basic_behavior(self):
         from _pytest.config import Config
         option_dict = {
@@ -389,19 +389,19 @@ def test_preparse_ordering_with_setuptools(testdir, monkeypatch):
     def my_iter(name):
         assert name == "pytest11"
 
-        class Dist:
+        class Dist(object):
             project_name = 'spam'
             version = '1.0'
 
             def _get_metadata(self, name):
                 return ['foo.txt,sha256=abc,123']
 
-        class EntryPoint:
+        class EntryPoint(object):
             name = "mytestplugin"
             dist = Dist()
 
             def load(self):
-                class PseudoPlugin:
+                class PseudoPlugin(object):
                     x = 42
                 return PseudoPlugin()
 
@@ -423,14 +423,14 @@ def test_setuptools_importerror_issue1479(testdir, monkeypatch):
     def my_iter(name):
         assert name == "pytest11"
 
-        class Dist:
+        class Dist(object):
             project_name = 'spam'
             version = '1.0'
 
             def _get_metadata(self, name):
                 return ['foo.txt,sha256=abc,123']
 
-        class EntryPoint:
+        class EntryPoint(object):
             name = "mytestplugin"
             dist = Dist()
 
@@ -450,14 +450,14 @@ def test_plugin_preparse_prevents_setuptools_loading(testdir, monkeypatch):
     def my_iter(name):
         assert name == "pytest11"
 
-        class Dist:
+        class Dist(object):
             project_name = 'spam'
             version = '1.0'
 
             def _get_metadata(self, name):
                 return ['foo.txt,sha256=abc,123']
 
-        class EntryPoint:
+        class EntryPoint(object):
             name = "mytestplugin"
             dist = Dist()
 
@@ -557,7 +557,7 @@ def test_notify_exception(testdir, capfd):
     out, err = capfd.readouterr()
     assert "ValueError" in err
 
-    class A:
+    class A(object):
         def pytest_internalerror(self, excrepr):
             return True
 
@@ -571,7 +571,7 @@ def test_load_initial_conftest_last_ordering(testdir):
     from _pytest.config  import get_config
     pm = get_config().pluginmanager
 
-    class My:
+    class My(object):
         def pytest_load_initial_conftests(self):
             pass
 
@@ -602,7 +602,7 @@ def test_get_plugin_specs_as_list():
     assert _get_plugin_specs_as_list(('foo', 'bar')) == ['foo', 'bar']
 
 
-class TestWarning:
+class TestWarning(object):
     def test_warn_config(self, testdir):
         testdir.makeconftest("""
             l = []
@@ -641,7 +641,7 @@ class TestWarning:
             *WT1*test_warn_on_test_item*:7 hello*
         """)
 
-class TestRootdir:
+class TestRootdir(object):
     def test_simple_noini(self, tmpdir):
         assert get_common_ancestor([tmpdir]) == tmpdir
         a = tmpdir.mkdir("a")
@@ -699,7 +699,7 @@ class TestRootdir:
         assert rootdir == tmpdir
 
 
-class TestOverrideIniArgs:
+class TestOverrideIniArgs(object):
     @pytest.mark.parametrize("name", "setup.cfg tox.ini pytest.ini".split())
     def test_override_ini_names(self, testdir, name):
         testdir.tmpdir.join(name).write(py.std.textwrap.dedent("""

testing/test_conftest.py

@@ -24,14 +24,14 @@ def ConftestWithSetinitial(path):
     return conftest
 
 def conftest_setinitial(conftest, args, confcutdir=None):
-    class Namespace:
+    class Namespace(object):
         def __init__(self):
             self.file_or_dir = args
             self.confcutdir = str(confcutdir)
             self.noconftest = False
     conftest._set_initial_conftests(Namespace())
 
-class TestConftestValueAccessGlobal:
+class TestConftestValueAccessGlobal(object):
     def test_basic_init(self, basedir):
         conftest = PytestPluginManager()
         p = basedir.join("adir")
@@ -265,7 +265,7 @@ def test_conftest_found_with_double_dash(testdir):
     """)
 
 
-class TestConftestVisibility:
+class TestConftestVisibility(object):
     def _setup_tree(self, testdir):  # for issue616
         # example mostly taken from:
         # https://mail.python.org/pipermail/pytest-dev/2014-September/002617.html
@@ -398,7 +398,7 @@ def test_search_conftest_up_to_inifile(testdir, confcutdir, passed, error):
 
 def test_issue1073_conftest_special_objects(testdir):
     testdir.makeconftest("""
-        class DontTouchMe:
+        class DontTouchMe(object):
             def __getattr__(self, x):
                 raise Exception('cant touch me')
 

testing/test_doctest.py

@@ -6,7 +6,7 @@ from _pytest.doctest import DoctestItem, DoctestModule, DoctestTextfile
 import pytest
 
 
-class TestDoctests:
+class TestDoctests(object):
 
     def test_collect_testtextfile(self, testdir):
         w = testdir.maketxtfile(whatever="")
@@ -378,7 +378,7 @@ class TestDoctests:
 
     def test_doctestmodule_two_tests_one_fail(self, testdir):
         p = testdir.makepyfile("""
-            class MyClass:
+            class MyClass(object):
                 def bad_meth(self):
                     '''
                     >>> magic = 42
@@ -401,7 +401,7 @@ class TestDoctests:
             doctest_optionflags = ELLIPSIS NORMALIZE_WHITESPACE
         """)
         p = testdir.makepyfile("""
-            class MyClass:
+            class MyClass(object):
                 '''
                 >>> a = "foo    "
                 >>> print(a)
@@ -418,7 +418,7 @@ class TestDoctests:
             doctest_optionflags = ELLIPSIS
         """)
         p = testdir.makepyfile("""
-            class MyClass:
+            class MyClass(object):
                 '''
                 >>> a = "foo    "
                 >>> print(a)
@@ -505,7 +505,7 @@ class TestDoctests:
         reprec.assertoutcome(failed=1)
 
 
-class TestLiterals:
+class TestLiterals(object):
 
     @pytest.mark.parametrize('config_mode', ['ini', 'comment'])
     def test_allow_unicode(self, testdir, config_mode):
@@ -592,7 +592,7 @@ class TestLiterals:
         reprec.assertoutcome(passed=passed, failed=int(not passed))
 
 
-class TestDoctestSkips:
+class TestDoctestSkips(object):
     """
     If all examples in a doctest are skipped due to the SKIP option, then
     the tests should be SKIPPED rather than PASSED. (#957)
@@ -646,7 +646,7 @@ class TestDoctestSkips:
         reprec.assertoutcome(passed=0, skipped=0)
 
 
-class TestDoctestAutoUseFixtures:
+class TestDoctestAutoUseFixtures(object):
 
     SCOPES = ['module', 'session', 'class', 'function']
 
@@ -765,7 +765,7 @@ class TestDoctestAutoUseFixtures:
         result.stdout.fnmatch_lines(['*=== 1 passed in *'])
 
 
-class TestDoctestNamespaceFixture:
+class TestDoctestNamespaceFixture(object):
 
     SCOPES = ['module', 'session', 'class', 'function']
 
@@ -815,7 +815,7 @@ class TestDoctestNamespaceFixture:
         reprec.assertoutcome(passed=1)
 
 
-class TestDoctestReportingOption:
+class TestDoctestReportingOption(object):
     def _run_doctest_report(self, testdir, format):
         testdir.makepyfile("""
             def foo():

testing/test_junitxml.py

@@ -79,7 +79,7 @@ class DomNode(object):
         return type(self)(self.__node.nextSibling)
 
 
-class TestPython:
+class TestPython(object):
     def test_summing_simple(self, testdir):
         testdir.makepyfile("""
             import pytest
@@ -263,7 +263,7 @@ class TestPython:
 
     def test_classname_instance(self, testdir):
         testdir.makepyfile("""
-            class TestClass:
+            class TestClass(object):
                 def test_method(self):
                     assert 0
         """)
@@ -376,7 +376,7 @@ class TestPython:
         testdir.makepyfile("""
             def test_func():
                 assert 0
-            class TestHello:
+            class TestHello(object):
                 def test_hello(self):
                     pass
         """)
@@ -569,7 +569,7 @@ def test_mangle_test_address():
 def test_dont_configure_on_slaves(tmpdir):
     gotten = []
 
-    class FakeConfig:
+    class FakeConfig(object):
         def __init__(self):
             self.pluginmanager = self
             self.option = self
@@ -588,7 +588,7 @@ def test_dont_configure_on_slaves(tmpdir):
     assert len(gotten) == 1
 
 
-class TestNonPython:
+class TestNonPython(object):
     def test_summing_simple(self, testdir):
         testdir.makeconftest("""
             import pytest
@@ -750,7 +750,7 @@ def test_double_colon_split_function_issue469(testdir):
 def test_double_colon_split_method_issue469(testdir):
     testdir.makepyfile("""
         import pytest
-        class TestClass:
+        class TestClass(object):
             @pytest.mark.parametrize('param', ["double::colon"])
             def test_func(self, param):
                 pass

testing/test_mark.py

@@ -3,7 +3,7 @@ import os
 import py, pytest
 from _pytest.mark import MarkGenerator as Mark
 
-class TestMark:
+class TestMark(object):
     def test_markinfo_repr(self):
         from _pytest.mark import MarkInfo, Mark
         m = MarkInfo(Mark("hello", (1,2), {}))
@@ -301,7 +301,7 @@ def test_parametrized_collected_from_command_line(testdir):
     rec.assertoutcome(passed=3)
 
 
-class TestFunctional:
+class TestFunctional(object):
 
     def test_mark_per_function(self, testdir):
         p = testdir.makepyfile("""
@@ -326,7 +326,7 @@ class TestFunctional:
     def test_marklist_per_class(self, testdir):
         item = testdir.getitem("""
             import pytest
-            class TestClass:
+            class TestClass(object):
                 pytestmark = [pytest.mark.hello, pytest.mark.world]
                 def test_func(self):
                     assert TestClass.test_func.hello
@@ -339,7 +339,7 @@ class TestFunctional:
         item = testdir.getitem("""
             import pytest
             pytestmark = [pytest.mark.hello, pytest.mark.world]
-            class TestClass:
+            class TestClass(object):
                 def test_func(self):
                     assert TestClass.test_func.hello
                     assert TestClass.test_func.world
@@ -352,7 +352,7 @@ class TestFunctional:
         item = testdir.getitem("""
             import pytest
             @pytest.mark.hello
-            class TestClass:
+            class TestClass(object):
                 def test_func(self):
                     assert TestClass.test_func.hello
         """)
@@ -363,7 +363,7 @@ class TestFunctional:
         item = testdir.getitem("""
             import pytest
             @pytest.mark.hello
-            class TestClass:
+            class TestClass(object):
                 pytestmark = pytest.mark.world
                 def test_func(self):
                     assert TestClass.test_func.hello
@@ -377,7 +377,7 @@ class TestFunctional:
         p = testdir.makepyfile("""
             import pytest
             pytestmark = pytest.mark.hello("pos1", x=1, y=2)
-            class TestClass:
+            class TestClass(object):
                 # classlevel overrides module level
                 pytestmark = pytest.mark.hello(x=3)
                 @pytest.mark.hello("pos0", z=4)
@@ -403,11 +403,11 @@ class TestFunctional:
         # issue 199 - propagate markers into nested classes
         p = testdir.makepyfile("""
             import pytest
-            class TestA:
+            class TestA(object):
                 pytestmark = pytest.mark.a
                 def test_b(self):
                     assert True
-                class TestC:
+                class TestC(object):
                     # this one didnt get marked
                     def test_d(self):
                         assert True
@@ -422,7 +422,7 @@ class TestFunctional:
             import pytest
 
             @pytest.mark.a
-            class Base: pass
+            class Base(object): pass
 
             @pytest.mark.b
             class Test1(Base):
@@ -441,7 +441,7 @@ class TestFunctional:
         p = testdir.makepyfile("""
             import pytest
 
-            class TestBase:
+            class TestBase(object):
                 def test_foo(self):
                     pass
 
@@ -465,7 +465,7 @@ class TestFunctional:
             import pytest
 
             @pytest.mark.a
-            class Base: pass
+            class Base(object): pass
 
             @pytest.mark.b
             class Base2(Base): pass
@@ -485,7 +485,7 @@ class TestFunctional:
     def test_mark_with_wrong_marker(self, testdir):
         reprec = testdir.inline_runsource("""
                 import pytest
-                class pytestmark:
+                class pytestmark(object):
                     pass
                 def test_func():
                     pass
@@ -630,7 +630,7 @@ class TestFunctional:
         reprec.assertoutcome(skipped=1)
 
 
-class TestKeywordSelection:
+class TestKeywordSelection(object):
 
     def test_select_simple(self, testdir):
         file_test = testdir.makepyfile("""
@@ -659,7 +659,7 @@ class TestKeywordSelection:
         p = testdir.makepyfile(test_select="""
             def test_1():
                 pass
-            class TestClass:
+            class TestClass(object):
                 def test_2(self):
                     pass
         """)

testing/test_monkeypatch.py

@@ -16,7 +16,7 @@ def mp():
 
 
 def test_setattr():
-    class A:
+    class A(object):
         x = 1
 
     monkeypatch = MonkeyPatch()
@@ -39,7 +39,7 @@ def test_setattr():
     assert A.x == 5
 
 
-class TestSetattrWithImportPath:
+class TestSetattrWithImportPath(object):
     def test_string_expression(self, monkeypatch):
         monkeypatch.setattr("os.path.abspath", lambda x: "hello2")
         assert os.path.abspath("123") == "hello2"
@@ -79,7 +79,7 @@ class TestSetattrWithImportPath:
 
 
 def test_delattr():
-    class A:
+    class A(object):
         x = 1
 
     monkeypatch = MonkeyPatch()
@@ -294,7 +294,7 @@ class SampleNewInherit(SampleNew):
     pass
 
 
-class SampleOld:
+class SampleOld(object):
     # oldstyle on python2
     @staticmethod
     def hello():

testing/test_nose.py

@@ -26,7 +26,7 @@ def test_setup_func_with_setup_decorator():
     from _pytest.nose import call_optional
     l = []
 
-    class A:
+    class A(object):
         @pytest.fixture(autouse=True)
         def f(self):
             l.append(1)
@@ -38,7 +38,7 @@ def test_setup_func_with_setup_decorator():
 def test_setup_func_not_callable():
     from _pytest.nose import call_optional
 
-    class A:
+    class A(object):
         f = 1
 
     call_optional(A(), "f")
@@ -270,7 +270,7 @@ def test_nose_setup_ordering(testdir):
         def setup_module(mod):
             mod.visited = True
 
-        class TestClass:
+        class TestClass(object):
             def setup(self):
                 assert visited
             def test_first(self):
@@ -377,7 +377,7 @@ def test_istest_class_decorator(testdir):
     p = testdir.makepyfile("""
         import nose.tools
         @nose.tools.istest
-        class NotTestPrefix:
+        class NotTestPrefix(object):
             def test_method(self):
                 pass
         """)
@@ -388,7 +388,7 @@ def test_nottest_class_decorator(testdir):
     testdir.makepyfile("""
         import nose.tools
         @nose.tools.nottest
-        class TestPrefix:
+        class TestPrefix(object):
             def test_method(self):
                 pass
         """)

testing/test_parseopt.py

@@ -8,7 +8,7 @@ from _pytest import config as parseopt
 def parser():
     return parseopt.Parser()
 
-class TestParser:
+class TestParser(object):
     def test_no_help_by_default(self, capsys):
         parser = parseopt.Parser(usage="xyz")
         pytest.raises(SystemExit, lambda: parser.parse(["-h"]))
@@ -139,7 +139,7 @@ class TestParser:
         parser.addoption("--hello", dest="hello", action="store")
         parser.addoption("--world", dest="world", default=42)
 
-        class A:
+        class A(object):
             pass
 
         option = A()

testing/test_pastebin.py

@@ -2,7 +2,7 @@
 import sys
 import pytest
 
-class TestPasteCapture:
+class TestPasteCapture(object):
 
     @pytest.fixture
     def pastebinlist(self, monkeypatch, request):
@@ -71,7 +71,7 @@ class TestPasteCapture:
         ])
 
 
-class TestPaste:
+class TestPaste(object):
 
     @pytest.fixture
     def pastebin(self, request):
@@ -88,7 +88,7 @@ class TestPaste:
         def mocked(url, data):
             calls.append((url, data))
 
-            class DummyFile:
+            class DummyFile(object):
                 def read(self):
                     # part of html of a normal response
                     return b'View <a href="/raw/3c0c6750bd">raw</a>.'

testing/test_pdb.py

@@ -18,7 +18,7 @@ def custom_pdb_calls():
     called = []
 
     # install dummy debugger class and track which methods were called on it
-    class _CustomPdb:
+    class _CustomPdb(object):
         def __init__(self, *args, **kwargs):
             called.append("init")
 
@@ -33,7 +33,7 @@ def custom_pdb_calls():
 
 
 
-class TestPDB:
+class TestPDB(object):
 
     @pytest.fixture
     def pdblist(self, request):
@@ -374,7 +374,7 @@ class TestPDB:
 
     def test_pdb_custom_cls_with_settrace(self, testdir, monkeypatch):
         testdir.makepyfile(custom_pdb="""
-            class CustomPdb:
+            class CustomPdb(object):
                 def set_trace(*args, **kwargs):
                     print 'custom set_trace>'
          """)

testing/test_pluginmanager.py

@@ -11,7 +11,7 @@ from _pytest.main import EXIT_NOTESTSCOLLECTED, Session
 def pytestpm():
     return PytestPluginManager()
 
-class TestPytestPluginInteractions:
+class TestPytestPluginInteractions(object):
     def test_addhooks_conftestplugin(self, testdir):
         testdir.makepyfile(newhooks="""
             def pytest_myhook(xyz):
@@ -85,7 +85,7 @@ class TestPytestPluginInteractions:
         config = testdir.parseconfig()
         l = []
 
-        class A:
+        class A(object):
             def pytest_configure(self, config):
                 l.append(self)
 
@@ -105,11 +105,11 @@ class TestPytestPluginInteractions:
         pytestpm = get_config().pluginmanager  # fully initialized with plugins
         saveindent = []
 
-        class api1:
+        class api1(object):
             def pytest_plugin_registered(self):
                 saveindent.append(pytestpm.trace.root.indent)
 
-        class api2:
+        class api2(object):
             def pytest_plugin_registered(self):
                 saveindent.append(pytestpm.trace.root.indent)
                 raise ValueError()
@@ -156,11 +156,11 @@ class TestPytestPluginInteractions:
     def test_warn_on_deprecated_multicall(self, pytestpm):
         warnings = []
 
-        class get_warnings:
+        class get_warnings(object):
             def pytest_logwarning(self, message):
                 warnings.append(message)
 
-        class Plugin:
+        class Plugin(object):
             def pytest_configure(self, __multicall__):
                 pass
 
@@ -173,11 +173,11 @@ class TestPytestPluginInteractions:
     def test_warn_on_deprecated_addhooks(self, pytestpm):
         warnings = []
 
-        class get_warnings:
+        class get_warnings(object):
             def pytest_logwarning(self, code, fslocation, message, nodeid):
                 warnings.append(message)
 
-        class Plugin:
+        class Plugin(object):
             def pytest_testhook():
                 pass
 
@@ -221,7 +221,7 @@ def test_importplugin_error_message(testdir, pytestpm):
     assert py.std.re.match(expected, str(excinfo.value))
 
 
-class TestPytestPluginManager:
+class TestPytestPluginManager(object):
     def test_register_imported_modules(self):
         pm = PytestPluginManager()
         mod = py.std.types.ModuleType("x.y.pytest_hello")
@@ -348,7 +348,7 @@ class TestPytestPluginManager:
             pytestpm.consider_conftest(mod)
 
 
-class TestPytestPluginManagerBootstrapming:
+class TestPytestPluginManagerBootstrapming(object):
     def test_preparse_args(self, pytestpm):
         pytest.raises(ImportError, lambda:
             pytestpm.consider_preparse(["xyz", "-p", "hello123"]))

testing/test_pytester.py

@@ -12,7 +12,7 @@ def test_make_hook_recorder(testdir):
 
     pytest.xfail("internal reportrecorder tests need refactoring")
 
-    class rep:
+    class rep(object):
         excinfo = None
         passed = False
         failed = True
@@ -25,7 +25,7 @@ def test_make_hook_recorder(testdir):
     failures = recorder.getfailures()
     assert failures == [rep]
 
-    class rep:
+    class rep(object):
         excinfo = None
         passed = False
         failed = False
@@ -74,7 +74,7 @@ def test_testdir_runs_with_plugin(testdir):
 
 
 def make_holder():
-    class apiclass:
+    class apiclass(object):
         def pytest_xyz(self, arg):
             "x"
         def pytest_xyz_noarg(self):

testing/test_resultlog.py

@@ -70,7 +70,7 @@ def test_write_log_entry():
     assert entry_lines[1:] == [' '+line for line in longrepr.splitlines()]
 
 
-class TestWithFunctionIntegration:
+class TestWithFunctionIntegration(object):
     # XXX (hpk) i think that the resultlog plugin should
     # provide a Parser object so that one can remain
     # ignorant regarding formatting details.

testing/test_runner.py

@@ -8,7 +8,7 @@ import pytest
 import sys
 from _pytest import runner, main
 
-class TestSetupState:
+class TestSetupState(object):
     def test_setup(self, testdir):
         ss = runner.SetupState()
         item = testdir.getitem("def test_func(): pass")
@@ -71,7 +71,7 @@ class TestSetupState:
         assert err.value.args == ('oops2',)
 
 
-class BaseFunctionalTests:
+class BaseFunctionalTests(object):
     def test_passfunction(self, testdir):
         reports = testdir.runitem("""
             def test_func():
@@ -200,7 +200,7 @@ class BaseFunctionalTests:
         rec = testdir.inline_runsource("""
             import pytest
 
-            class TestClass:
+            class TestClass(object):
                 def test_method(self):
                     pass
                 def teardown_class(cls):
@@ -239,7 +239,7 @@ class BaseFunctionalTests:
         rec = testdir.inline_runsource("""
             import pytest
 
-            class TestClass:
+            class TestClass(object):
                 def teardown_method(self, x, y, z):
                     pass
 
@@ -351,12 +351,12 @@ class TestExecutionForked(BaseFunctionalTests):
         assert rep.failed
         assert rep.when == "???"
 
-class TestSessionReports:
+class TestSessionReports(object):
     def test_collect_result(self, testdir):
         col = testdir.getmodulecol("""
             def test_func1():
                 pass
-            class TestClass:
+            class TestClass(object):
                 pass
         """)
         rep = runner.collect_one_node(col)
@@ -409,7 +409,7 @@ def test_runtest_in_module_ordering(testdir):
         import pytest
         def pytest_runtest_setup(item): # runs after class-level!
             item.function.mylist.append("module")
-        class TestClass:
+        class TestClass(object):
             def pytest_runtest_setup(self, item):
                 assert not hasattr(item.function, 'mylist')
                 item.function.mylist = ['class']
@@ -680,7 +680,7 @@ def test_store_except_info_on_eror():
     sys.last_traceback and friends.
     """
     # Simulate item that raises a specific exception
-    class ItemThatRaises:
+    class ItemThatRaises(object):
         def runtest(self):
             raise IndexError('TEST')
     try:
@@ -693,7 +693,7 @@ def test_store_except_info_on_eror():
     assert sys.last_traceback
 
 
-class TestReportContents:
+class TestReportContents(object):
     """
     Test user-level API of ``TestReport`` objects.
     """

testing/test_runner_xunit.py

@@ -24,7 +24,7 @@ def test_module_and_function_setup(testdir):
             assert modlevel[0] == 42
             assert test_modlevel.answer == 17
 
-        class TestFromClass:
+        class TestFromClass(object):
             def test_module(self):
                 assert modlevel[0] == 42
                 assert not hasattr(test_modlevel, 'answer')
@@ -69,7 +69,7 @@ def test_setup_function_failure_no_teardown(testdir):
 
 def test_class_setup(testdir):
     reprec = testdir.inline_runsource("""
-        class TestSimpleClassSetup:
+        class TestSimpleClassSetup(object):
             clslevel = []
             def setup_class(cls):
                 cls.clslevel.append(23)
@@ -92,7 +92,7 @@ def test_class_setup(testdir):
 
 def test_class_setup_failure_no_teardown(testdir):
     reprec = testdir.inline_runsource("""
-        class TestSimpleClassSetup:
+        class TestSimpleClassSetup(object):
             clslevel = []
             def setup_class(cls):
                 0/0
@@ -110,7 +110,7 @@ def test_class_setup_failure_no_teardown(testdir):
 
 def test_method_setup(testdir):
     reprec = testdir.inline_runsource("""
-        class TestSetupMethod:
+        class TestSetupMethod(object):
             def setup_method(self, meth):
                 self.methsetup = meth
             def teardown_method(self, meth):
@@ -126,7 +126,7 @@ def test_method_setup(testdir):
 
 def test_method_setup_failure_no_teardown(testdir):
     reprec = testdir.inline_runsource("""
-        class TestMethodSetup:
+        class TestMethodSetup(object):
             clslevel = []
             def setup_method(self, method):
                 self.clslevel.append(1)
@@ -145,7 +145,7 @@ def test_method_setup_failure_no_teardown(testdir):
 
 def test_method_generator_setup(testdir):
     reprec = testdir.inline_runsource("""
-        class TestSetupTeardownOnInstance:
+        class TestSetupTeardownOnInstance(object):
             def setup_class(cls):
                 cls.classsetup = True
 
@@ -195,7 +195,7 @@ def test_func_generator_setup(testdir):
 
 def test_method_setup_uses_fresh_instances(testdir):
     reprec = testdir.inline_runsource("""
-        class TestSelfState1:
+        class TestSelfState1(object):
             memory = []
             def test_hello(self):
                 self.memory.append(self)
@@ -276,7 +276,7 @@ def test_setup_teardown_function_level_with_optional_argument(testdir, monkeypat
         def test_function_1(): pass
         def test_function_2(): pass
 
-        class Test:
+        class Test(object):
             def setup_method(self, {arg}): trace('setup_method')
             def teardown_method(self, {arg}): trace('teardown_method')
 

testing/test_session.py

@@ -2,7 +2,7 @@ import pytest
 
 from _pytest.main import EXIT_NOTESTSCOLLECTED
 
-class SessionTests:
+class SessionTests(object):
     def test_basic_testitem_events(self, testdir):
         tfile = testdir.makepyfile("""
             def test_one():
@@ -11,7 +11,7 @@ class SessionTests:
                 assert 0
             def test_other():
                 raise ValueError(23)
-            class TestClass:
+            class TestClass(object):
                 def test_two(self, someargs):
                     pass
         """)
@@ -97,12 +97,12 @@ class SessionTests:
     def test_broken_repr(self, testdir):
         p = testdir.makepyfile("""
             import pytest
-            class BrokenRepr1:
+            class BrokenRepr1(object):
                 foo=0
                 def __repr__(self):
                     raise Exception("Ha Ha fooled you, I'm a broken repr().")
 
-            class TestBrokenClass:
+            class TestBrokenClass(object):
                 def test_explicit_bad_repr(self):
                     t = BrokenRepr1()
                     pytest.raises(Exception, 'repr(t)')
@@ -145,7 +145,7 @@ class TestNewSession(SessionTests):
                 l.append(2)
             def test_3():
                 assert l == [1,2]
-            class Testmygroup:
+            class Testmygroup(object):
                 reslist = l
                 def test_1(self):
                     self.reslist.append(1)
@@ -167,7 +167,7 @@ class TestNewSession(SessionTests):
                 def test_one():
                     raise ValueError()
 
-                class TestX:
+                class TestX(object):
                     def test_method_one(self):
                         pass
 

testing/test_skipping.py

@@ -5,7 +5,7 @@ from _pytest.skipping import MarkEvaluator, folded_skips, pytest_runtest_setup
 from _pytest.runner import runtestprotocol
 
 
-class TestEvaluator:
+class TestEvaluator(object):
     def test_no_marker(self, testdir):
         item = testdir.getitem("def test_func(): pass")
         evalskipif = MarkEvaluator(item, 'skipif')
@@ -114,7 +114,7 @@ class TestEvaluator:
     def test_skipif_class(self, testdir):
         item, = testdir.getitems("""
             import pytest
-            class TestClass:
+            class TestClass(object):
                 pytestmark = pytest.mark.skipif("config._hackxyz")
                 def test_func(self):
                     pass
@@ -126,7 +126,7 @@ class TestEvaluator:
         assert expl == "condition: config._hackxyz"
 
 
-class TestXFail:
+class TestXFail(object):
 
     @pytest.mark.parametrize('strict', [True, False])
     def test_xfail_simple(self, testdir, strict):
@@ -452,7 +452,7 @@ class TestXFail:
         assert result.ret == (1 if strict else 0)
 
 
-class TestXFailwithSetupTeardown:
+class TestXFailwithSetupTeardown(object):
     def test_failing_setup_issue9(self, testdir):
         testdir.makepyfile("""
             import pytest
@@ -484,7 +484,7 @@ class TestXFailwithSetupTeardown:
         ])
 
 
-class TestSkip:
+class TestSkip(object):
     def test_skip_class(self, testdir):
         testdir.makepyfile("""
             import pytest
@@ -581,7 +581,7 @@ class TestSkip:
             "*1 skipped*",
         ])
 
-class TestSkipif:
+class TestSkipif(object):
     def test_skipif_conditional(self, testdir):
         item = testdir.getitem("""
             import pytest
@@ -648,7 +648,7 @@ def test_skipif_class(testdir):
     p = testdir.makepyfile("""
         import pytest
 
-        class TestClass:
+        class TestClass(object):
             pytestmark = pytest.mark.skipif("True")
             def test_that(self):
                 assert 0
@@ -667,7 +667,7 @@ def test_skip_reasons_folding():
     message = "justso"
     longrepr = (path, lineno, message)
 
-    class X:
+    class X(object):
         pass
     ev1 = X()
     ev1.when = "execute"
@@ -694,7 +694,7 @@ def test_skipped_reasons_functional(testdir):
                 doskip()
             def test_func():
                 pass
-            class TestClass:
+            class TestClass(object):
                 def test_method(self):
                     doskip()
        """,
@@ -892,7 +892,7 @@ def test_imperativeskip_on_xfail_test(testdir):
         *2 skipped*
     """)
 
-class TestBooleanCondition:
+class TestBooleanCondition(object):
     def test_skipif(self, testdir):
         testdir.makepyfile("""
             import pytest

testing/test_terminal.py

@@ -16,7 +16,7 @@ from _pytest.terminal import build_summary_stats_line, _plugin_nameversions
 DistInfo = collections.namedtuple('DistInfo', ['project_name', 'version'])
 
 
-class Option:
+class Option(object):
     def __init__(self, verbose=False, fulltrace=False):
         self.verbose = verbose
         self.fulltrace = fulltrace
@@ -56,7 +56,7 @@ def test_plugin_nameversion(input, expected):
     assert result == expected
 
 
-class TestTerminal:
+class TestTerminal(object):
     def test_pass_skip_fail(self, testdir, option):
         testdir.makepyfile("""
             import pytest
@@ -127,7 +127,7 @@ class TestTerminal:
 
     def test_itemreport_subclasses_show_subclassed_file(self, testdir):
         testdir.makepyfile(test_p1="""
-            class BaseTests:
+            class BaseTests(object):
                 def test_p1(self):
                     pass
             class TestClass(BaseTests):
@@ -151,7 +151,7 @@ class TestTerminal:
     def test_itemreport_directclasses_not_shown_as_subclasses(self, testdir):
         a = testdir.mkpydir("a123")
         a.join("test_hello123.py").write(_pytest._code.Source("""
-            class TestClass:
+            class TestClass(object):
                 def test_method(self):
                     pass
         """))
@@ -204,7 +204,7 @@ class TestTerminal:
         result.stdout.fnmatch_lines(['*KeyboardInterrupt*'])
 
 
-class TestCollectonly:
+class TestCollectonly(object):
     def test_collectonly_basic(self, testdir):
         testdir.makepyfile("""
             def test_func():
@@ -249,7 +249,7 @@ class TestCollectonly:
         p = testdir.makepyfile("""
             def test_func1():
                 pass
-            class TestClass:
+            class TestClass(object):
                 def test_method(self):
                     pass
         """)
@@ -310,7 +310,7 @@ def test_repr_python_version(monkeypatch):
     finally:
         monkeypatch.undo() # do this early as pytest can get confused
 
-class TestFixtureReporting:
+class TestFixtureReporting(object):
     def test_setup_fixture_error(self, testdir):
         testdir.makepyfile("""
             def setup_function(function):
@@ -395,7 +395,7 @@ class TestFixtureReporting:
             "*1 failed*",
          ])
 
-class TestTerminalFunctional:
+class TestTerminalFunctional(object):
     def test_deselected(self, testdir):
         testpath = testdir.makepyfile("""
                 def test_one():
@@ -431,7 +431,7 @@ class TestTerminalFunctional:
         p1 = testdir.makepyfile("""
             def test_passes():
                 pass
-            class TestClass:
+            class TestClass(object):
                 def test_method(self):
                     pass
         """)
@@ -487,7 +487,7 @@ class TestTerminalFunctional:
                 raise ValueError()
             def test_pass():
                 pass
-            class TestClass:
+            class TestClass(object):
                 def test_skip(self):
                     pytest.skip("hello")
             def test_gen():
@@ -612,8 +612,8 @@ def test_color_yes_collection_on_non_atty(testdir, verbose):
 
 
 def test_getreportopt():
-    class config:
-        class option:
+    class config(object):
+        class option(object):
             reportchars = ""
             disablepytestwarnings = True
 
@@ -683,7 +683,7 @@ def test_traceconfig(testdir, monkeypatch):
     assert result.ret == EXIT_NOTESTSCOLLECTED
 
 
-class TestGenericReporting:
+class TestGenericReporting(object):
     """ this test class can be subclassed with a different option
         provider to run e.g. distributed tests.
     """

testing/test_tmpdir.py

@@ -34,7 +34,7 @@ def test_ensuretemp(recwarn):
     assert d1 == d2
     assert d1.check(dir=1)
 
-class TestTempdirHandler:
+class TestTempdirHandler(object):
     def test_mktemp(self, testdir):
         from _pytest.tmpdir import TempdirFactory
         config = testdir.parseconfig()
@@ -48,7 +48,7 @@ class TestTempdirHandler:
         assert tmp2.relto(t.getbasetemp()).startswith("this")
         assert tmp2 != tmp
 
-class TestConfigTmpdir:
+class TestConfigTmpdir(object):
     def test_getbasetemp_custom_removes_old(self, testdir):
         mytemp = testdir.tmpdir.join("xyz")
         p = testdir.makepyfile("""

testing/test_unittest.py

@@ -385,7 +385,7 @@ def test_trial_testfunction_todo_property(testdir):
     reprec.assertoutcome(skipped=1)
 
 
-class TestTrialUnittest:
+class TestTrialUnittest(object):
     def setup_class(cls):
         cls.ut = pytest.importorskip("twisted.trial.unittest")
 
@@ -704,7 +704,7 @@ def test_unittest_setup_interaction(testdir, fix_type, stmt):
 
 def test_non_unittest_no_setupclass_support(testdir):
     testpath = testdir.makepyfile("""
-        class TestFoo:
+        class TestFoo(object):
             x = 0
 
             @classmethod