removed explicit object inheritance (#6686)

* removed explicit object inheritance

* minor fix

* pr comments

---------

Co-authored-by: Andrew Chubatiuk <andrew.chubatiuk@motional.com>

tests/factories.py

@@ -7,7 +7,7 @@ from redash.utils import gen_query_hash, utcnow
 from redash.utils.configuration import ConfigurationContainer
 
 
-class ModelFactory(object):
+class ModelFactory:
     def __init__(self, model, **kwargs):
         self.model = model
         self.kwargs = kwargs
@@ -30,7 +30,7 @@ class ModelFactory(object):
         return obj
 
 
-class Sequence(object):
+class Sequence:
     def __init__(self, string):
         self.sequence = 0
         self.string = string
@@ -172,7 +172,7 @@ query_snippet_factory = ModelFactory(
 )
 
 
-class Factory(object):
+class Factory:
     def __init__(self):
         self.org, self.admin_group, self.default_group = redash.models.init_db()
         self._data_source = None

tests/handlers/test_paginate.py

@@ -6,7 +6,7 @@ from werkzeug.exceptions import BadRequest
 from redash.handlers.base import paginate
 
 
-class DummyResults(object):
+class DummyResults:
     items = [i for i in range(25)]
 
 

tests/handlers/test_users.py

@@ -102,7 +102,7 @@ class TestUserListResourcePost(BaseTestCase):
 
 class TestUserListGet(BaseTestCase):
     def create_filters_fixtures(self):
-        class PlainObject(object):
+        class PlainObject:
             pass
 
         result = PlainObject()

tests/test_handlers.py

@@ -6,7 +6,7 @@ from redash import models, settings
 from tests import BaseTestCase, authenticated_user
 
 
-class AuthenticationTestMixin(object):
+class AuthenticationTestMixin:
     def test_returns_404_when_not_unauthenticated(self):
         for path in self.paths:
             rv = self.client.get(path)