All classes now subclass object for better py3 compatibility

Fix #2147

_pytest/_argcomplete.py

@@ -60,7 +60,7 @@ import os
 from glob import glob
 
 
-class FastFilesCompleter:
+class FastFilesCompleter(object):
     'Fast file completer class'
 
     def __init__(self, directories=True):

_pytest/assertion/__init__.py

@@ -56,7 +56,7 @@ class DummyRewriteHook(object):
         pass
 
 
-class AssertionState:
+class AssertionState(object):
     """State for the assertion plugin."""
 
     def __init__(self, config, mode):

_pytest/cacheprovider.py

@@ -98,7 +98,7 @@ class Cache(object):
                 json.dump(value, f, indent=2, sort_keys=True)
 
 
-class LFPlugin:
+class LFPlugin(object):
     """ Plugin which implements the --lf (run last-failing) option """
 
     def __init__(self, config):

_pytest/capture.py

@@ -61,7 +61,7 @@ def pytest_load_initial_conftests(early_config, parser, args):
         sys.stderr.write(err)
 
 
-class CaptureManager:
+class CaptureManager(object):
     """
     Capture plugin, manages that the appropriate capture method is enabled/disabled during collection and each
     test phase (setup, call, teardown). After each of those points, the captured output is obtained and
@@ -271,7 +271,7 @@ def _install_capture_fixture_on_item(request, capture_class):
     del request.node._capture_fixture
 
 
-class CaptureFixture:
+class CaptureFixture(object):
     def __init__(self, captureclass, request):
         self.captureclass = captureclass
         self.request = request
@@ -416,11 +416,11 @@ class MultiCapture(object):
                              self.err.snap() if self.err is not None else "")
 
 
-class NoCapture:
+class NoCapture(object):
     __init__ = start = done = suspend = resume = lambda *args: None
 
 
-class FDCaptureBinary:
+class FDCaptureBinary(object):
     """Capture IO to/from a given os-level filedescriptor.
 
     snap() produces `bytes`
@@ -506,7 +506,7 @@ class FDCapture(FDCaptureBinary):
         return res
 
 
-class SysCapture:
+class SysCapture(object):
     def __init__(self, fd, tmpfile=None):
         name = patchsysdict[fd]
         self._old = getattr(sys, name)
@@ -551,7 +551,7 @@ class SysCaptureBinary(SysCapture):
         return res
 
 
-class DontReadFromInput:
+class DontReadFromInput(object):
     """Temporary stub class.  Ideally when stdin is accessed, the
     capturing should be turned off, with possibly all data captured
     so far sent to the screen.  This should be configurable, though,

_pytest/config.py

@@ -66,7 +66,7 @@ def main(args=None, plugins=None):
         return 4
 
 
-class cmdline:  # compatibility namespace
+class cmdline(object):  # compatibility namespace
     main = staticmethod(main)
 
 
@@ -463,7 +463,7 @@ def _get_plugin_specs_as_list(specs):
     return []
 
 
-class Parser:
+class Parser(object):
     """ Parser for command line arguments and ini-file values.
 
     :ivar extra_info: dict of generic param -> value to display in case
@@ -598,7 +598,7 @@ class ArgumentError(Exception):
             return self.msg
 
 
-class Argument:
+class Argument(object):
     """class that mimics the necessary behaviour of optparse.Option
 
     its currently a least effort implementation
@@ -728,7 +728,7 @@ class Argument:
         return 'Argument({0})'.format(', '.join(args))
 
 
-class OptionGroup:
+class OptionGroup(object):
     def __init__(self, name, description="", parser=None):
         self.name = name
         self.description = description
@@ -859,7 +859,7 @@ class CmdOptions(object):
         return CmdOptions(self.__dict__)
 
 
-class Notset:
+class Notset(object):
     def __repr__(self):
         return "<NOTSET>"
 

_pytest/debugging.py

@@ -40,7 +40,7 @@ def pytest_configure(config):
     config._cleanup.append(fin)
 
 
-class pytestPDB:
+class pytestPDB(object):
     """ Pseudo PDB that defers to the real pdb. """
     _pluginmanager = None
     _config = None
@@ -62,7 +62,7 @@ class pytestPDB:
         cls._pdb_cls().set_trace(frame)
 
 
-class PdbInvoke:
+class PdbInvoke(object):
     def pytest_exception_interact(self, node, call, report):
         capman = node.config.pluginmanager.getplugin("capturemanager")
         if capman:

_pytest/fixtures.py

@@ -247,7 +247,7 @@ def get_direct_param_fixture_func(request):
     return request.param
 
 
-class FuncFixtureInfo:
+class FuncFixtureInfo(object):
     def __init__(self, argnames, names_closure, name2fixturedefs):
         self.argnames = argnames
         self.names_closure = names_closure
@@ -443,7 +443,7 @@ class FixtureRequest(FuncargnamesCompatAttr):
                 fixturedef = self._getnextfixturedef(argname)
             except FixtureLookupError:
                 if argname == "request":
-                    class PseudoFixtureDef:
+                    class PseudoFixtureDef(object):
                         cached_result = (self, [0], None)
                         scope = "function"
                     return PseudoFixtureDef
@@ -719,7 +719,7 @@ def call_fixture_func(fixturefunc, request, kwargs):
     return res
 
 
-class FixtureDef:
+class FixtureDef(object):
     """ A container for a factory definition. """
 
     def __init__(self, fixturemanager, baseid, argname, func, scope, params,
@@ -925,7 +925,7 @@ def pytestconfig(request):
     return request.config
 
 
-class FixtureManager:
+class FixtureManager(object):
     """
     pytest fixtures definitions and information is stored and managed
     from this class.

_pytest/main.py

@@ -243,7 +243,7 @@ def _patched_find_module():
         yield
 
 
-class FSHookProxy:
+class FSHookProxy(object):
     def __init__(self, fspath, pm, remove_mods):
         self.fspath = fspath
         self.pm = pm

_pytest/mark.py

@@ -284,7 +284,7 @@ def pytest_unconfigure(config):
     MARK_GEN._config = getattr(config, '_old_mark_config', None)
 
 
-class MarkGenerator:
+class MarkGenerator(object):
     """ Factory for :class:`MarkDecorator` objects - exposed as
     a ``pytest.mark`` singleton instance.  Example::
 

_pytest/monkeypatch.py

@@ -88,7 +88,7 @@ def derive_importpath(import_path, raising):
     return attr, target
 
 
-class Notset:
+class Notset(object):
     def __repr__(self):
         return "<notset>"
 
@@ -96,7 +96,7 @@ class Notset:
 notset = Notset()
 
 
-class MonkeyPatch:
+class MonkeyPatch(object):
     """ Object returned by the ``monkeypatch`` fixture keeping a record of setattr/item/env/syspath changes.
     """
 

_pytest/pytester.py

@@ -171,7 +171,7 @@ def _pytest(request):
     return PytestArg(request)
 
 
-class PytestArg:
+class PytestArg(object):
     def __init__(self, request):
         self.request = request
 
@@ -186,7 +186,7 @@ def get_public_names(values):
     return [x for x in values if x[0] != "_"]
 
 
-class ParsedCall:
+class ParsedCall(object):
     def __init__(self, name, kwargs):
         self.__dict__.update(kwargs)
         self._name = name
@@ -197,7 +197,7 @@ class ParsedCall:
         return "<ParsedCall %r(**%r)>" % (self._name, d)
 
 
-class HookRecorder:
+class HookRecorder(object):
     """Record all hooks called in a plugin manager.
 
     This wraps all the hook calls in the plugin manager, recording each call
@@ -343,7 +343,7 @@ def testdir(request, tmpdir_factory):
 rex_outcome = re.compile(r"(\d+) ([\w-]+)")
 
 
-class RunResult:
+class RunResult(object):
     """The result of running a command.
 
     Attributes:
@@ -397,7 +397,7 @@ class RunResult:
         assert obtained == dict(passed=passed, skipped=skipped, failed=failed, error=error)
 
 
-class CwdSnapshot:
+class CwdSnapshot(object):
     def __init__(self):
         self.__saved = os.getcwd()
 
@@ -405,7 +405,7 @@ class CwdSnapshot:
         os.chdir(self.__saved)
 
 
-class SysModulesSnapshot:
+class SysModulesSnapshot(object):
     def __init__(self, preserve=None):
         self.__preserve = preserve
         self.__saved = dict(sys.modules)
@@ -418,7 +418,7 @@ class SysModulesSnapshot:
         sys.modules.update(self.__saved)
 
 
-class SysPathsSnapshot:
+class SysPathsSnapshot(object):
     def __init__(self):
         self.__saved = list(sys.path), list(sys.meta_path)
 
@@ -426,7 +426,7 @@ class SysPathsSnapshot:
         sys.path[:], sys.meta_path[:] = self.__saved
 
 
-class Testdir:
+class Testdir(object):
     """Temporary test directory with tools to test/run pytest itself.
 
     This is based on the ``tmpdir`` fixture but provides a number of methods
@@ -740,7 +740,7 @@ class Testdir:
 
             rec = []
 
-            class Collect:
+            class Collect(object):
                 def pytest_configure(x, config):
                     rec.append(self.make_hook_recorder(config.pluginmanager))
 
@@ -750,7 +750,7 @@ class Testdir:
             if len(rec) == 1:
                 reprec = rec.pop()
             else:
-                class reprec:
+                class reprec(object):
                     pass
             reprec.ret = ret
 
@@ -780,13 +780,13 @@ class Testdir:
                 reprec = self.inline_run(*args, **kwargs)
             except SystemExit as e:
 
-                class reprec:
+                class reprec(object):
                     ret = e.args[0]
 
             except Exception:
                 traceback.print_exc()
 
-                class reprec:
+                class reprec(object):
                     ret = 3
         finally:
             out, err = capture.readouterr()
@@ -1067,7 +1067,7 @@ def getdecoded(out):
             py.io.saferepr(out),)
 
 
-class LineComp:
+class LineComp(object):
     def __init__(self):
         self.stringio = py.io.TextIO()
 
@@ -1085,7 +1085,7 @@ class LineComp:
         return LineMatcher(lines1).fnmatch_lines(lines2)
 
 
-class LineMatcher:
+class LineMatcher(object):
     """Flexible matching of text.
 
     This is a convenience class to test large texts like the output of

_pytest/runner.py

@@ -178,7 +178,7 @@ def call_runtest_hook(item, when, **kwds):
     return CallInfo(lambda: ihook(item=item, **kwds), when=when)
 
 
-class CallInfo:
+class CallInfo(object):
     """ Result/Exception info a function invocation. """
     #: None or ExceptionInfo object.
     excinfo = None

_pytest/terminal.py

@@ -94,7 +94,7 @@ def pytest_report_teststatus(report):
     return report.outcome, letter, report.outcome.upper()
 
 
-class WarningReport:
+class WarningReport(object):
     """
     Simple structure to hold warnings information captured by ``pytest_logwarning``.
     """
@@ -129,7 +129,7 @@ class WarningReport:
         return None
 
 
-class TerminalReporter:
+class TerminalReporter(object):
     def __init__(self, config, file=None):
         import _pytest.config
         self.config = config

_pytest/tmpdir.py

@@ -8,7 +8,7 @@ import py
 from _pytest.monkeypatch import MonkeyPatch
 
 
-class TempdirFactory:
+class TempdirFactory(object):
     """Factory for temporary directories under the common base temp directory.
 
     The base directory can be configured using the ``--basetemp`` option.

changelog/2147.removal

@@ -0,0 +1 @@
+All pytest classes now subclass ``object`` for better Python 3 compatibility. This should not affect user code except in very rare edge cases.

testing/acceptance_test.py

@@ -901,7 +901,7 @@ def test_deferred_hook_checking(testdir):
     testdir.syspathinsert()
     testdir.makepyfile(**{
         'plugin.py': """
-        class Hooks:
+        class Hooks(object):
             def pytest_my_hook(self, config):
                 pass
 

testing/python/collect.py

@@ -880,10 +880,10 @@ class TestConftestCustomization(object):
             import sys, os, imp
             from _pytest.python import Module
 
-            class Loader:
+            class Loader(object):
                 def load_module(self, name):
                     return imp.load_source(name, name + ".narf")
-            class Finder:
+            class Finder(object):
                 def find_module(self, name, path=None):
                     if os.path.exists(name + ".narf"):
                         return Loader()

testing/python/fixture.py

@@ -2828,7 +2828,7 @@ class TestShowFixtures(object):
     def test_show_fixtures_indented_in_class(self, testdir):
         p = testdir.makepyfile(dedent('''
             import pytest
-            class TestClass:
+            class TestClass(object):
                 @pytest.fixture
                 def fixture1(self):
                     """line1

testing/python/metafunc.py

@@ -241,7 +241,7 @@ class TestMetafunc(object):
         """
         from _pytest.python import _idval
 
-        class TestClass:
+        class TestClass(object):
             pass
 
         def test_function():

testing/test_capture.py

@@ -1245,7 +1245,7 @@ def test_py36_windowsconsoleio_workaround_non_standard_streams():
     """
     from _pytest.capture import _py36_windowsconsoleio_workaround
 
-    class DummyStream:
+    class DummyStream(object):
         def write(self, s):
             pass
 

testing/test_pytester.py

@@ -135,7 +135,7 @@ def test_makepyfile_utf8(testdir):
     assert u"mixed_encoding = u'São Paulo'".encode('utf-8') in p.read('rb')
 
 
-class TestInlineRunModulesCleanup:
+class TestInlineRunModulesCleanup(object):
     def test_inline_run_test_module_not_cleaned_up(self, testdir):
         test_mod = testdir.makepyfile("def test_foo(): assert True")
         result = testdir.inline_run(str(test_mod))
@@ -146,7 +146,7 @@ class TestInlineRunModulesCleanup:
         assert result2.ret == EXIT_TESTSFAILED
 
     def spy_factory(self):
-        class SysModulesSnapshotSpy:
+        class SysModulesSnapshotSpy(object):
             instances = []
 
             def __init__(self, preserve=None):
@@ -223,7 +223,7 @@ def test_inline_run_clean_sys_paths(testdir):
         assert sys.meta_path == original_meta_path
 
     def spy_factory(self):
-        class SysPathsSnapshotSpy:
+        class SysPathsSnapshotSpy(object):
             instances = []
 
             def __init__(self):
@@ -266,7 +266,7 @@ def test_cwd_snapshot(tmpdir):
     assert py.path.local() == foo
 
 
-class TestSysModulesSnapshot:
+class TestSysModulesSnapshot(object):
     key = 'my-test-module'
 
     def test_remove_added(self):
@@ -329,7 +329,7 @@ class TestSysModulesSnapshot:
 
 
 @pytest.mark.parametrize('path_type', ('path', 'meta_path'))
-class TestSysPathsSnapshot:
+class TestSysPathsSnapshot(object):
     other_path = {
         'path': 'meta_path',
         'meta_path': 'path'}

testing/test_terminal.py

@@ -966,7 +966,7 @@ def test_no_trailing_whitespace_after_inifile_word(testdir):
     assert 'inifile: tox.ini\n' in result.stdout.str()
 
 
-class TestProgress:
+class TestProgress(object):
 
     @pytest.fixture
     def many_tests_files(self, testdir):
@@ -1047,7 +1047,7 @@ class TestProgress:
         ])
 
 
-class TestProgressWithTeardown:
+class TestProgressWithTeardown(object):
     """Ensure we show the correct percentages for tests that fail during teardown (#3088)"""
 
     @pytest.fixture