Remove some old unnecessary explicit object superclasses.

Author: Julian

docs/validate.rst

@@ -88,7 +88,7 @@ existing `TypeChecker` or create a new one. You may then create a new
 
     from jsonschema import validators
 
-    class MyInteger(object):
+    class MyInteger:
         pass
 
     def is_my_int(checker, instance):

jsonschema/_format.py

@@ -16,7 +16,7 @@
 ]
 
 
-class FormatChecker(object):
+class FormatChecker:
     """
     A ``format`` property checker.
 

jsonschema/_types.py

@@ -67,7 +67,7 @@ def is_any(checker, instance):
 
 
 @attr.s(frozen=True)
-class TypeChecker(object):
+class TypeChecker:
     """
     A ``type`` property checker.
 

jsonschema/_utils.py

@@ -43,7 +43,7 @@ def __repr__(self):
         return repr(self.store)
 
 
-class Unset(object):
+class Unset:
     """
     An as-of-yet unset attribute or unprovided default parameter.
     """

jsonschema/cli.py

@@ -30,7 +30,7 @@ class _CannotLoadFile(Exception):
 
 
 @attr.s
-class _Outputter(object):
+class _Outputter:
 
     _formatter = attr.ib()
     _stdout = attr.ib()
@@ -72,7 +72,7 @@ def validation_success(self, **kwargs):
 
 
 @attr.s
-class _PrettyFormatter(object):
+class _PrettyFormatter:
 
     _ERROR_MSG = dedent(
         """\
@@ -114,7 +114,7 @@ def validation_success(self, instance_path):
 
 
 @attr.s
-class _PlainFormatter(object):
+class _PlainFormatter:
 
     _error_format = attr.ib()
 

jsonschema/exceptions.py

@@ -237,7 +237,7 @@ def __str__(self):
         return self.message
 
 
-class ErrorTree(object):
+class ErrorTree:
     """
     ErrorTrees make it easier to check which validations failed.
     """

jsonschema/tests/_suite.py

@@ -36,7 +36,7 @@ def _find_suite():
 
 
 @attr.s(hash=True)
-class Suite(object):
+class Suite:
 
     _root = attr.ib(default=attr.Factory(_find_suite))
 
@@ -63,7 +63,7 @@ def version(self, name):
 
 
 @attr.s(hash=True)
-class Version(object):
+class Version:
 
     _path = attr.ib()
     _remotes = attr.ib()
@@ -140,7 +140,7 @@ def _tests_in(self, subject, path):
 
 
 @attr.s(hash=True, repr=False)
-class _Test(object):
+class _Test:
 
     version = attr.ib()
 

jsonschema/tests/test_cli.py

@@ -29,7 +29,7 @@
 def fake_validator(*errors):
     errors = list(reversed(errors))
 
-    class FakeValidator(object):
+    class FakeValidator:
         def __init__(self, *args, **kwargs):
             pass
 

jsonschema/tests/test_exceptions.py

@@ -563,7 +563,7 @@ def test_str_works_with_instances_having_overriden_eq_operator(self):
         that returned truthy values.
         """
 
-        class DontEQMeBro(object):
+        class DontEQMeBro:
             def __eq__(this, other):  # pragma: no cover
                 self.fail("Don't!")
 

jsonschema/tests/test_validators.py

@@ -1406,7 +1406,7 @@ def test_ref_sibling(self):
         )
 
 
-class MetaSchemaTestsMixin(object):
+class MetaSchemaTestsMixin:
     # TODO: These all belong upstream
     def test_invalid_properties(self):
         with self.assertRaises(exceptions.SchemaError):
@@ -1504,7 +1504,7 @@ def test_it_delegates_to_a_legacy_ref_resolver(self):
         resolution.
         """
 
-        class LegacyRefResolver(object):
+        class LegacyRefResolver:
             @contextmanager
             def resolving(this, ref):
                 self.assertEqual(ref, "the ref")
@@ -1677,7 +1677,7 @@ def test_check_redefined_sequence(self):
                 validator.validate(instance)
 
 
-class AntiDraft6LeakMixin(object):
+class AntiDraft6LeakMixin:
     """
     Make sure functionality from draft 6 doesn't leak backwards in time.
     """
@@ -2202,7 +2202,7 @@ def key(error):
 
 
 @attr.s
-class ReallyFakeRequests(object):
+class ReallyFakeRequests:
 
     _responses = attr.ib()
 
@@ -2214,7 +2214,7 @@ def get(self, url):
 
 
 @attr.s
-class _ReallyFakeJSONResponse(object):
+class _ReallyFakeJSONResponse:
 
     _response = attr.ib()