From 73d2f315114c05c1385c854da3b560be506479d6 Mon Sep 17 00:00:00 2001
From: Tomas Fratrik <tfratrik@redhat.com>
Date: Mon, 18 Aug 2025 11:09:30 +0200
Subject: [PATCH 38/55] pylint: enable useless-object-inheritance

Jira: RHELMISC-16038
---
 .pylintrc                                            |  1 -
 commands/upgrade/breadcrumbs.py                      |  2 +-
 .../tests/unit_test_addupgradebootentry.py           |  4 ++--
 .../adjustlocalrepos/tests/test_adjustlocalrepos.py  |  4 ++--
 .../tests/unit_test_applytransactionworkarounds.py   |  2 +-
 .../actors/biosdevname/tests/test_biosdevname.py     |  6 +++---
 .../tests/unit_test_checkbootavailspace.py           |  2 +-
 .../actors/checksaphana/tests/test_checksaphana.py   |  6 +++---
 .../checktargetrepos/tests/test_checktargetrepos.py  |  2 +-
 .../tests/test_convertgrubenvtofile.py               |  2 +-
 .../scanhybridimage/tests/test_scanhybridimage.py    |  2 +-
 .../tests/test_enablerhsmtargetrepos.py              |  4 ++--
 ...aultboot_forcedefaultboottotargetkernelversion.py |  2 +-
 .../tests/test_targetinitramfsgenerator.py           |  2 +-
 .../tests/unit_test_upgradeinitramfsgenerator.py     |  6 +++---
 .../tests/test_kernelcmdlineconfig.py                |  2 +-
 .../tests/test_image_generation.py                   |  2 +-
 .../tests/test_livemode_userspace_modifications.py   |  8 ++++----
 .../actors/luksscanner/libraries/luksdump_parser.py  |  4 ++--
 .../actors/luksscanner/tests/test_luksscaner.py      |  2 +-
 .../tests/unit_test_migrateopensslconf.py            |  8 ++++----
 .../tests/test_persistentnetnames.py                 |  2 +-
 .../tests/test_persistentnetnamesinitramfs.py        |  2 +-
 .../libraries/peseventsscanner_repomap.py            |  2 +-
 .../tests/unit_test_removebootfiles.py               |  2 +-
 .../tests/unit_test_removeupgradebootentry.py        |  2 +-
 .../libraries/repositoriesmapping.py                 |  2 +-
 .../actors/rpmscanner/tests/test_rpmscanner.py       |  2 +-
 .../tests/unit_test_satellite_upgrader.py            |  2 +-
 .../tests/test_unit_scanclienablerepo.py             |  2 +-
 .../common/actors/scancpu/tests/test_scancpu.py      |  2 +-
 .../tests/test_scancustomrepofile.py                 |  2 +-
 ...stalledkernel_scaninstalledtargetkernelversion.py |  2 +-
 .../actors/scansaphana/tests/test_scansaphana.py     |  6 +++---
 .../tests/unit_test_selinuxcontentscanner.py         |  4 ++--
 .../selinuxprepare/tests/unit_test_selinuxprepare.py |  2 +-
 .../setetcreleasever/tests/test_setetcreleasever.py  |  2 +-
 .../libraries/setuptargetrepos_repomap.py            |  2 +-
 .../storagescanner/tests/unit_test_storagescanner.py |  4 ++--
 .../tests/test_checksystemdbrokensymlinks.py         |  2 +-
 .../tests/test_repairsystemdsymlinks.py              |  2 +-
 .../tests/test_scansystemdsource.py                  |  2 +-
 .../tests/test_scansystemdtarget.py                  |  2 +-
 .../tests/test_setsystemdservicesstate.py            |  2 +-
 .../actors/systemfacts/tests/test_systemfacts.py     |  4 ++--
 .../systemfacts/tests/test_systemfacts_grub.py       |  2 +-
 .../systemfacts/tests/test_systemfacts_selinux.py    |  2 +-
 .../targetuserspacecreator/libraries/userspacegen.py |  2 +-
 .../tests/unit_test_targetuserspacecreator.py        |  4 ++--
 .../tests/test_trustedgpgkeys.py                     |  2 +-
 .../updategrubcore/tests/test_updategrubcore.py      |  2 +-
 .../tests/unit_test_verifycheckresults.py            |  2 +-
 .../xfsinfoscanner/tests/unit_test_xfsinfoscanner.py |  2 +-
 repos/system_upgrade/common/libraries/grub.py        |  4 ++--
 repos/system_upgrade/common/libraries/kernel.py      |  2 +-
 repos/system_upgrade/common/libraries/mounting.py    | 12 ++++++------
 .../system_upgrade/common/libraries/multipathutil.py |  2 +-
 repos/system_upgrade/common/libraries/rhui.py        |  8 ++++----
 repos/system_upgrade/common/libraries/rpms.py        |  2 +-
 .../common/libraries/tests/test_grub.py              |  2 +-
 .../common/libraries/tests/test_mdraid.py            |  2 +-
 .../tests/test_persistentnetnames_library.py         |  4 ++--
 .../common/libraries/tests/test_rhsm.py              |  2 +-
 repos/system_upgrade/common/libraries/testutils.py   |  8 ++++----
 .../tests/test_addarmbootloaderworkaround.py         |  2 +-
 .../tests/test_ensurevalidgrubcfghybrid.py           |  2 +-
 .../tests/test_grub2mkconfigonppc64.py               |  4 ++--
 .../tests/test_opensshdropindirectory_prepend.py     |  2 +-
 .../opensslproviders/tests/test_add_provider.py      |  2 +-
 .../tests/unit_test_scanblacklistca.py               |  4 ++--
 .../actors/sssdfacts/libraries/sssdfacts8to9.py      |  2 +-
 71 files changed, 107 insertions(+), 108 deletions(-)

diff --git a/.pylintrc b/.pylintrc
index 15a69461..d98ab151 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -44,7 +44,6 @@ disable=
  too-many-lines,  # we do not want to take care about that one
  too-many-positional-arguments,  # we cannot set yet max-possitional-arguments unfortunately
 # new for python3 version of pylint
- useless-object-inheritance,
  unnecessary-pass,
  invalid-envvar-default,  # pylint3 warnings envvar returns str/none by default
  bad-option-value,  # python 2 doesn't have import-outside-toplevel, but in some case we need to import outside toplevel
diff --git a/commands/upgrade/breadcrumbs.py b/commands/upgrade/breadcrumbs.py
index 3a3dcde3..1a90c143 100644
--- a/commands/upgrade/breadcrumbs.py
+++ b/commands/upgrade/breadcrumbs.py
@@ -36,7 +36,7 @@ def _flattened(d):
     return dict(items)
 
 
-class _BreadCrumbs(object):
+class _BreadCrumbs:
     def __init__(self, activity):
         self._crumbs = {
             'activity': activity,
diff --git a/repos/system_upgrade/common/actors/addupgradebootentry/tests/unit_test_addupgradebootentry.py b/repos/system_upgrade/common/actors/addupgradebootentry/tests/unit_test_addupgradebootentry.py
index e5f632bc..7341602b 100644
--- a/repos/system_upgrade/common/actors/addupgradebootentry/tests/unit_test_addupgradebootentry.py
+++ b/repos/system_upgrade/common/actors/addupgradebootentry/tests/unit_test_addupgradebootentry.py
@@ -24,7 +24,7 @@ from leapp.models import (
 CUR_DIR = os.path.dirname(os.path.abspath(__file__))
 
 
-class run_mocked(object):
+class run_mocked:
     def __init__(self):
         self.args = []
 
@@ -32,7 +32,7 @@ class run_mocked(object):
         self.args.append(args)
 
 
-class write_to_file_mocked(object):
+class write_to_file_mocked:
     def __init__(self):
         self.content = None
 
diff --git a/repos/system_upgrade/common/actors/adjustlocalrepos/tests/test_adjustlocalrepos.py b/repos/system_upgrade/common/actors/adjustlocalrepos/tests/test_adjustlocalrepos.py
index 41cff200..6abf4189 100644
--- a/repos/system_upgrade/common/actors/adjustlocalrepos/tests/test_adjustlocalrepos.py
+++ b/repos/system_upgrade/common/actors/adjustlocalrepos/tests/test_adjustlocalrepos.py
@@ -83,7 +83,7 @@ def test_adjust_local_file_url(repo_file_line, expected_adjusted_repo_file_line)
     assert adjusted_repo_file_line == expected_adjusted_repo_file_line
 
 
-class MockedFileDescriptor(object):
+class MockedFileDescriptor:
 
     def __init__(self, repo_file, expected_new_repo_file):
         self.repo_file = repo_file
@@ -113,7 +113,7 @@ class MockedFileDescriptor(object):
         assert expected_repo_file_contents == new_contents
 
 
-class MockedContext(object):
+class MockedContext:
 
     def __init__(self, repo_contents, expected_repo_contents):
         self.repo_contents = repo_contents
diff --git a/repos/system_upgrade/common/actors/applytransactionworkarounds/tests/unit_test_applytransactionworkarounds.py b/repos/system_upgrade/common/actors/applytransactionworkarounds/tests/unit_test_applytransactionworkarounds.py
index 8fe33645..369514fc 100644
--- a/repos/system_upgrade/common/actors/applytransactionworkarounds/tests/unit_test_applytransactionworkarounds.py
+++ b/repos/system_upgrade/common/actors/applytransactionworkarounds/tests/unit_test_applytransactionworkarounds.py
@@ -18,7 +18,7 @@ class ShowMessageCurrentActorMocked(CurrentActorMocked):
         self._show_messages.append(message)
 
 
-class MockedNotIsolatedActions(object):
+class MockedNotIsolatedActions:
     def __init__(self):
         self.called = 0
         self.args = None
diff --git a/repos/system_upgrade/common/actors/biosdevname/tests/test_biosdevname.py b/repos/system_upgrade/common/actors/biosdevname/tests/test_biosdevname.py
index c60aa7a4..427eea54 100644
--- a/repos/system_upgrade/common/actors/biosdevname/tests/test_biosdevname.py
+++ b/repos/system_upgrade/common/actors/biosdevname/tests/test_biosdevname.py
@@ -9,7 +9,7 @@ from leapp.libraries.stdlib import api
 from leapp.models import Interface, PCIAddress
 
 
-class LoggerMocked(object):
+class LoggerMocked:
     def __init__(self):
         self.infomsg = None
 
@@ -32,12 +32,12 @@ def test_biosdevname_enabled(monkeypatch):
         assert not biosdevname.is_biosdevname_disabled()
 
 
-class pyudev_enum_mock(object):
+class pyudev_enum_mock:
     def __init__(self, vendor):
         self.vendor = vendor
 
     def match_sys_name(self, _):
-        class dev(object):
+        class dev:
             attributes = {'sys_vendor': self.vendor}
 
         return [dev()]
diff --git a/repos/system_upgrade/common/actors/checkbootavailspace/tests/unit_test_checkbootavailspace.py b/repos/system_upgrade/common/actors/checkbootavailspace/tests/unit_test_checkbootavailspace.py
index 094164c7..fbcd0820 100644
--- a/repos/system_upgrade/common/actors/checkbootavailspace/tests/unit_test_checkbootavailspace.py
+++ b/repos/system_upgrade/common/actors/checkbootavailspace/tests/unit_test_checkbootavailspace.py
@@ -10,7 +10,7 @@ from leapp.libraries.common.testutils import create_report_mocked
 from leapp.utils.report import is_inhibitor
 
 
-class fake_get_avail_bytes_on_boot(object):
+class fake_get_avail_bytes_on_boot:
     def __init__(self, size):
         self.size = size
 
diff --git a/repos/system_upgrade/common/actors/checksaphana/tests/test_checksaphana.py b/repos/system_upgrade/common/actors/checksaphana/tests/test_checksaphana.py
index 1e43f403..29e9c930 100644
--- a/repos/system_upgrade/common/actors/checksaphana/tests/test_checksaphana.py
+++ b/repos/system_upgrade/common/actors/checksaphana/tests/test_checksaphana.py
@@ -97,7 +97,7 @@ def _parse_manifest_data(manifest):
     return result
 
 
-class MockSapHanaInstanceInfo(object):
+class MockSapHanaInstanceInfo:
     def __init__(self, name, number, path, admin, manifest_data, running=True):
         self.manifest = _parse_manifest_data(manifest_data)
         self.name = name
@@ -118,7 +118,7 @@ def _gen_instance_info(name, manifest_data, index, running=True):
     )
 
 
-class MockSapHanaInfo(object):
+class MockSapHanaInfo:
     def __init__(self, v1names, v2names, v2lownames, running=None):
         self.installed = bool(v1names or v2names or v2lownames)
         self.running = running if running is not None else self.installed
@@ -151,7 +151,7 @@ def _consume_mock_sap_hana_info(v1names=(), v2names=(), v2lownames=(), running=T
     return _consume
 
 
-class MockSAPHanaVersionInstance(object):
+class MockSAPHanaVersionInstance:
     def __init__(self, major, rev, patchlevel):
         self.name = "TestName"
 
diff --git a/repos/system_upgrade/common/actors/checktargetrepos/tests/test_checktargetrepos.py b/repos/system_upgrade/common/actors/checktargetrepos/tests/test_checktargetrepos.py
index e055b3a6..dfe5d06a 100644
--- a/repos/system_upgrade/common/actors/checktargetrepos/tests/test_checktargetrepos.py
+++ b/repos/system_upgrade/common/actors/checktargetrepos/tests/test_checktargetrepos.py
@@ -16,7 +16,7 @@ from leapp.utils.deprecation import suppress_deprecation
 from leapp.utils.report import is_inhibitor
 
 
-class MockedConsume(object):
+class MockedConsume:
     def __init__(self, *args):
         self._msgs = []
         for arg in args:
diff --git a/repos/system_upgrade/common/actors/cloud/convertgrubenvtofile/tests/test_convertgrubenvtofile.py b/repos/system_upgrade/common/actors/cloud/convertgrubenvtofile/tests/test_convertgrubenvtofile.py
index c4534bd6..257060cc 100644
--- a/repos/system_upgrade/common/actors/cloud/convertgrubenvtofile/tests/test_convertgrubenvtofile.py
+++ b/repos/system_upgrade/common/actors/cloud/convertgrubenvtofile/tests/test_convertgrubenvtofile.py
@@ -14,7 +14,7 @@ def raise_call_error(args=None):
     )
 
 
-class run_mocked(object):
+class run_mocked:
     def __init__(self, raise_err=False):
         self.called = 0
         self.args = []
diff --git a/repos/system_upgrade/common/actors/cloud/scanhybridimage/tests/test_scanhybridimage.py b/repos/system_upgrade/common/actors/cloud/scanhybridimage/tests/test_scanhybridimage.py
index a0f6fd4c..660a1382 100644
--- a/repos/system_upgrade/common/actors/cloud/scanhybridimage/tests/test_scanhybridimage.py
+++ b/repos/system_upgrade/common/actors/cloud/scanhybridimage/tests/test_scanhybridimage.py
@@ -36,7 +36,7 @@ def raise_call_error(args=None):
     )
 
 
-class run_mocked(object):
+class run_mocked:
     def __init__(self, hypervisor='', raise_err=False):
         self.hypervisor = hypervisor
         self.called = 0
diff --git a/repos/system_upgrade/common/actors/enablerhsmtargetrepos/tests/test_enablerhsmtargetrepos.py b/repos/system_upgrade/common/actors/enablerhsmtargetrepos/tests/test_enablerhsmtargetrepos.py
index 12d53d26..f7b3f34a 100644
--- a/repos/system_upgrade/common/actors/enablerhsmtargetrepos/tests/test_enablerhsmtargetrepos.py
+++ b/repos/system_upgrade/common/actors/enablerhsmtargetrepos/tests/test_enablerhsmtargetrepos.py
@@ -13,7 +13,7 @@ from leapp.models import EnvVar, UsedTargetRepositories, UsedTargetRepository
 def not_isolated_actions(raise_err=False):
     commands_called = []
 
-    class MockNotIsolatedActions(object):
+    class MockNotIsolatedActions:
         def __init__(self, base_dir=None):
             pass
 
@@ -33,7 +33,7 @@ def raise_call_error(args=None):
     )
 
 
-class run_mocked(object):
+class run_mocked:
     def __init__(self, raise_err=False):
         self.called = 0
         self.args = []
diff --git a/repos/system_upgrade/common/actors/forcedefaultboottotargetkernelversion/tests/test_forcedefaultboot_forcedefaultboottotargetkernelversion.py b/repos/system_upgrade/common/actors/forcedefaultboottotargetkernelversion/tests/test_forcedefaultboot_forcedefaultboottotargetkernelversion.py
index b903df45..a39e29a7 100644
--- a/repos/system_upgrade/common/actors/forcedefaultboottotargetkernelversion/tests/test_forcedefaultboot_forcedefaultboottotargetkernelversion.py
+++ b/repos/system_upgrade/common/actors/forcedefaultboottotargetkernelversion/tests/test_forcedefaultboot_forcedefaultboottotargetkernelversion.py
@@ -69,7 +69,7 @@ initrd=/boot/initramfs-{kernel_version}.img
 '''
 
 
-class MockedRun(object):
+class MockedRun:
     def __init__(self, case):
         self.case = case
         self.called_setdefault = False
diff --git a/repos/system_upgrade/common/actors/initramfs/targetinitramfsgenerator/tests/test_targetinitramfsgenerator.py b/repos/system_upgrade/common/actors/initramfs/targetinitramfsgenerator/tests/test_targetinitramfsgenerator.py
index b4c9dd89..4df9a485 100644
--- a/repos/system_upgrade/common/actors/initramfs/targetinitramfsgenerator/tests/test_targetinitramfsgenerator.py
+++ b/repos/system_upgrade/common/actors/initramfs/targetinitramfsgenerator/tests/test_targetinitramfsgenerator.py
@@ -33,7 +33,7 @@ def raise_call_error(args=None):
                              })
 
 
-class RunMocked(object):
+class RunMocked:
 
     def __init__(self, raise_err=False):
         self.called = 0
diff --git a/repos/system_upgrade/common/actors/initramfs/upgradeinitramfsgenerator/tests/unit_test_upgradeinitramfsgenerator.py b/repos/system_upgrade/common/actors/initramfs/upgradeinitramfsgenerator/tests/unit_test_upgradeinitramfsgenerator.py
index 8408233e..185cd4f0 100644
--- a/repos/system_upgrade/common/actors/initramfs/upgradeinitramfsgenerator/tests/unit_test_upgradeinitramfsgenerator.py
+++ b/repos/system_upgrade/common/actors/initramfs/upgradeinitramfsgenerator/tests/unit_test_upgradeinitramfsgenerator.py
@@ -82,7 +82,7 @@ def gen_UDM_list(data):
     return [UpgradeDracutModule(name=i[0], module_path=i[1]) for i in data]
 
 
-class MockedContext(object):
+class MockedContext:
     def __init__(self):
         self.called_copy_from = []
         self.called_copytree_from = []
@@ -174,7 +174,7 @@ def test_copy_boot_files(monkeypatch, arch):
     assert actual_boot_content == bootc
 
 
-class MockedCopyArgs(object):
+class MockedCopyArgs:
     def __init__(self):
         self.args = None
 
@@ -250,7 +250,7 @@ def test_prepare_userspace_for_initram(monkeypatch, adjust_cwd, input_msgs, pkgs
     assert _sort_files(upgradeinitramfsgenerator._copy_files.args[1]) == _files
 
 
-class MockedGetFspace(object):
+class MockedGetFspace:
     def __init__(self, space):
         self.space = space
 
diff --git a/repos/system_upgrade/common/actors/kernelcmdlineconfig/tests/test_kernelcmdlineconfig.py b/repos/system_upgrade/common/actors/kernelcmdlineconfig/tests/test_kernelcmdlineconfig.py
index e5759a7b..b7e51833 100644
--- a/repos/system_upgrade/common/actors/kernelcmdlineconfig/tests/test_kernelcmdlineconfig.py
+++ b/repos/system_upgrade/common/actors/kernelcmdlineconfig/tests/test_kernelcmdlineconfig.py
@@ -34,7 +34,7 @@ SAMPLE_GRUBBY_INFO_OUTPUT = TEMPLATE_GRUBBY_INFO_OUTPUT.format(SAMPLE_KERNEL_ARG
 # pylint: enable=E501
 
 
-class MockedRun(object):
+class MockedRun:
     def __init__(self, outputs=None):
         """
         Mock stdlib.run().
diff --git a/repos/system_upgrade/common/actors/livemode/liveimagegenerator/tests/test_image_generation.py b/repos/system_upgrade/common/actors/livemode/liveimagegenerator/tests/test_image_generation.py
index 16ae0a09..e3ddce48 100644
--- a/repos/system_upgrade/common/actors/livemode/liveimagegenerator/tests/test_image_generation.py
+++ b/repos/system_upgrade/common/actors/livemode/liveimagegenerator/tests/test_image_generation.py
@@ -68,7 +68,7 @@ def test_generate_live_image_if_enabled(monkeypatch, livemode_config, should_pro
     actor_mock = CurrentActorMocked(msgs=messages)
     monkeypatch.setattr(api, 'current_actor', actor_mock)
 
-    class NspawnMock(object):
+    class NspawnMock:
         def __init__(self, *args, **kwargs):
             pass
 
diff --git a/repos/system_upgrade/common/actors/livemode/modify_userspace_for_livemode/tests/test_livemode_userspace_modifications.py b/repos/system_upgrade/common/actors/livemode/modify_userspace_for_livemode/tests/test_livemode_userspace_modifications.py
index 58046b61..e890f45a 100644
--- a/repos/system_upgrade/common/actors/livemode/modify_userspace_for_livemode/tests/test_livemode_userspace_modifications.py
+++ b/repos/system_upgrade/common/actors/livemode/modify_userspace_for_livemode/tests/test_livemode_userspace_modifications.py
@@ -26,7 +26,7 @@ _LiveModeConfig = functools.partial(LiveModeConfig, squashfs_fullpath='<squashfs
 def test_modifications_require_livemode_enabled(monkeypatch, livemode_config, should_modify):
     monkeypatch.setattr(api, 'produce', produce_mocked())
 
-    class NspawnActionsMock(object):
+    class NspawnActionsMock:
         def __init__(self, *arg, **kwargs):
             pass
 
@@ -82,7 +82,7 @@ class ActionType(enum.Enum):
     CHMOD = 5
 
 
-class WriterMock(object):
+class WriterMock:
     def __init__(self, action_log):
         self.action_log = action_log
 
@@ -91,7 +91,7 @@ class WriterMock(object):
         self.action_log.append(action)
 
 
-class FileHandleMock(object):
+class FileHandleMock:
     def __init__(self, action_log):
         self.action_log = action_log
 
@@ -102,7 +102,7 @@ class FileHandleMock(object):
         pass
 
 
-class NspawnActionsMock(object):
+class NspawnActionsMock:
     def __init__(self, base_dir, action_log):
         self.base_dir = base_dir
         self.action_log = action_log
diff --git a/repos/system_upgrade/common/actors/luksscanner/libraries/luksdump_parser.py b/repos/system_upgrade/common/actors/luksscanner/libraries/luksdump_parser.py
index 44113d0e..1f59b4d6 100755
--- a/repos/system_upgrade/common/actors/luksscanner/libraries/luksdump_parser.py
+++ b/repos/system_upgrade/common/actors/luksscanner/libraries/luksdump_parser.py
@@ -1,10 +1,10 @@
-class LuksDumpParser(object):
+class LuksDumpParser:
     """
     Class for parsing "cryptsetup luksDump" output. Given a list of lines, it
     generates a dictionary representing the dump.
     """
 
-    class Node(object):
+    class Node:
         """
         Helper class, every line is represented as a node. The node depth is
         based on the indentation of the line. A dictionary is produced after
diff --git a/repos/system_upgrade/common/actors/luksscanner/tests/test_luksscaner.py b/repos/system_upgrade/common/actors/luksscanner/tests/test_luksscaner.py
index 22eb0946..dca6f26f 100644
--- a/repos/system_upgrade/common/actors/luksscanner/tests/test_luksscaner.py
+++ b/repos/system_upgrade/common/actors/luksscanner/tests/test_luksscaner.py
@@ -29,7 +29,7 @@ CLEVIS_KEYSLOTS = {
 }
 
 
-class MockedRun(object):
+class MockedRun:
     """Simple mock class for leapp.libraries.stdlib.run."""
 
     def __init__(self, variant, clevis_keyslots):
diff --git a/repos/system_upgrade/common/actors/openssl/migrateopensslconf/tests/unit_test_migrateopensslconf.py b/repos/system_upgrade/common/actors/openssl/migrateopensslconf/tests/unit_test_migrateopensslconf.py
index e9200312..18827a25 100644
--- a/repos/system_upgrade/common/actors/openssl/migrateopensslconf/tests/unit_test_migrateopensslconf.py
+++ b/repos/system_upgrade/common/actors/openssl/migrateopensslconf/tests/unit_test_migrateopensslconf.py
@@ -7,7 +7,7 @@ from leapp.libraries.common.testutils import CurrentActorMocked, logger_mocked
 from leapp.libraries.stdlib import CalledProcessError
 
 
-class PathExistsMocked(object):
+class PathExistsMocked:
     def __init__(self, existing_files=None):
         self.called = 0
         self._existing_files = existing_files if existing_files else []
@@ -17,7 +17,7 @@ class PathExistsMocked(object):
         return fpath in self._existing_files
 
 
-class IsOpensslModifiedMocked(object):
+class IsOpensslModifiedMocked:
     def __init__(self, ret_values):
         self._ret_values = ret_values
         # ret_values is list of bools to return on each call. ret_values.pop(0)
@@ -32,7 +32,7 @@ class IsOpensslModifiedMocked(object):
         return self._ret_values.pop(0)
 
 
-class SafeMVFileMocked(object):
+class SafeMVFileMocked:
     def __init__(self, ret_values):
         self._ret_values = ret_values
         # ret_values is list of bools to return on each call. ret_values.pop(0)
@@ -113,7 +113,7 @@ def test_migrate_openssl_failed_restore(monkeypatch):
     assert len(migrateopensslconf.api.current_logger.errmsg) == 2
 
 
-class MockedRun(object):
+class MockedRun:
     def __init__(self, raise_err):
         self.called = 0
         self.args = None
diff --git a/repos/system_upgrade/common/actors/persistentnetnames/tests/test_persistentnetnames.py b/repos/system_upgrade/common/actors/persistentnetnames/tests/test_persistentnetnames.py
index 40f54d0d..ffea5983 100644
--- a/repos/system_upgrade/common/actors/persistentnetnames/tests/test_persistentnetnames.py
+++ b/repos/system_upgrade/common/actors/persistentnetnames/tests/test_persistentnetnames.py
@@ -21,7 +21,7 @@ def interface_mocked(i=0):
     )
 
 
-class interfaces_mocked(object):
+class interfaces_mocked:
     def __init__(self, count):
         self.count = count
 
diff --git a/repos/system_upgrade/common/actors/persistentnetnamesinitramfs/tests/test_persistentnetnamesinitramfs.py b/repos/system_upgrade/common/actors/persistentnetnamesinitramfs/tests/test_persistentnetnamesinitramfs.py
index 8da0dce4..f149502b 100644
--- a/repos/system_upgrade/common/actors/persistentnetnamesinitramfs/tests/test_persistentnetnamesinitramfs.py
+++ b/repos/system_upgrade/common/actors/persistentnetnamesinitramfs/tests/test_persistentnetnamesinitramfs.py
@@ -21,7 +21,7 @@ def interface_mocked(i=0):
     )
 
 
-class interfaces_mocked(object):
+class interfaces_mocked:
     def __init__(self, count):
         self.count = count
 
diff --git a/repos/system_upgrade/common/actors/peseventsscanner/libraries/peseventsscanner_repomap.py b/repos/system_upgrade/common/actors/peseventsscanner/libraries/peseventsscanner_repomap.py
index 37be03f1..b3f35d99 100644
--- a/repos/system_upgrade/common/actors/peseventsscanner/libraries/peseventsscanner_repomap.py
+++ b/repos/system_upgrade/common/actors/peseventsscanner/libraries/peseventsscanner_repomap.py
@@ -18,7 +18,7 @@ def _get_channel_prio(pesid_repo):
     return priorities.get(pesid_repo.channel, 10)
 
 
-class RepoMapDataHandler(object):
+class RepoMapDataHandler:
     """
     Provide the basic functionality to work with the repository data easily.
     """
diff --git a/repos/system_upgrade/common/actors/removebootfiles/tests/unit_test_removebootfiles.py b/repos/system_upgrade/common/actors/removebootfiles/tests/unit_test_removebootfiles.py
index 7e5fbbf0..719ffe21 100644
--- a/repos/system_upgrade/common/actors/removebootfiles/tests/unit_test_removebootfiles.py
+++ b/repos/system_upgrade/common/actors/removebootfiles/tests/unit_test_removebootfiles.py
@@ -7,7 +7,7 @@ from leapp.libraries.stdlib import api
 from leapp.models import BootContent
 
 
-class remove_file_mocked(object):
+class remove_file_mocked:
     def __init__(self):
         self.called = 0
         self.files_to_remove = []
diff --git a/repos/system_upgrade/common/actors/removeupgradebootentry/tests/unit_test_removeupgradebootentry.py b/repos/system_upgrade/common/actors/removeupgradebootentry/tests/unit_test_removeupgradebootentry.py
index c84d3085..9de4e4d3 100644
--- a/repos/system_upgrade/common/actors/removeupgradebootentry/tests/unit_test_removeupgradebootentry.py
+++ b/repos/system_upgrade/common/actors/removeupgradebootentry/tests/unit_test_removeupgradebootentry.py
@@ -8,7 +8,7 @@ from leapp.libraries.stdlib import api
 from leapp.models import ArmWorkaroundEFIBootloaderInfo, BootContent, EFIBootEntry, FirmwareFacts
 
 
-class run_mocked(object):
+class run_mocked:
     def __init__(self):
         self.args = []
 
diff --git a/repos/system_upgrade/common/actors/repositoriesmapping/libraries/repositoriesmapping.py b/repos/system_upgrade/common/actors/repositoriesmapping/libraries/repositoriesmapping.py
index d4a64793..503e66a3 100644
--- a/repos/system_upgrade/common/actors/repositoriesmapping/libraries/repositoriesmapping.py
+++ b/repos/system_upgrade/common/actors/repositoriesmapping/libraries/repositoriesmapping.py
@@ -16,7 +16,7 @@ REPOMAP_FILE = 'repomap.json'
 """The name of the new repository mapping file."""
 
 
-class RepoMapData(object):
+class RepoMapData:
     VERSION_FORMAT = '1.3.0'
 
     def __init__(self):
diff --git a/repos/system_upgrade/common/actors/rpmscanner/tests/test_rpmscanner.py b/repos/system_upgrade/common/actors/rpmscanner/tests/test_rpmscanner.py
index 3a59535b..e9455feb 100644
--- a/repos/system_upgrade/common/actors/rpmscanner/tests/test_rpmscanner.py
+++ b/repos/system_upgrade/common/actors/rpmscanner/tests/test_rpmscanner.py
@@ -77,7 +77,7 @@ ARTIFACTS_SUBVERSION_113 = [
 ]
 
 
-class ModuleMocked(object):
+class ModuleMocked:
     def __init__(self, name, stream, artifacts):
         self.name = name
         self.stream = stream
diff --git a/repos/system_upgrade/common/actors/satellite_upgrader/tests/unit_test_satellite_upgrader.py b/repos/system_upgrade/common/actors/satellite_upgrader/tests/unit_test_satellite_upgrader.py
index 55896c75..f3bed932 100644
--- a/repos/system_upgrade/common/actors/satellite_upgrader/tests/unit_test_satellite_upgrader.py
+++ b/repos/system_upgrade/common/actors/satellite_upgrader/tests/unit_test_satellite_upgrader.py
@@ -4,7 +4,7 @@ from leapp.models import SatelliteFacts, SatellitePostgresqlFacts
 from leapp.snactor.fixture import current_actor_context
 
 
-class MockedRun(object):
+class MockedRun:
     def __init__(self):
         self._manager = Manager()
         self.commands = self._manager.list()
diff --git a/repos/system_upgrade/common/actors/scanclienablerepo/tests/test_unit_scanclienablerepo.py b/repos/system_upgrade/common/actors/scanclienablerepo/tests/test_unit_scanclienablerepo.py
index 1f437c47..6cf7e681 100644
--- a/repos/system_upgrade/common/actors/scanclienablerepo/tests/test_unit_scanclienablerepo.py
+++ b/repos/system_upgrade/common/actors/scanclienablerepo/tests/test_unit_scanclienablerepo.py
@@ -6,7 +6,7 @@ from leapp.libraries.stdlib import api
 from leapp.models import CustomTargetRepository
 
 
-class LoggerMocked(object):
+class LoggerMocked:
     def __init__(self):
         self.infomsg = None
         self.debugmsg = None
diff --git a/repos/system_upgrade/common/actors/scancpu/tests/test_scancpu.py b/repos/system_upgrade/common/actors/scancpu/tests/test_scancpu.py
index dc9d1ffc..be0802ba 100644
--- a/repos/system_upgrade/common/actors/scancpu/tests/test_scancpu.py
+++ b/repos/system_upgrade/common/actors/scancpu/tests/test_scancpu.py
@@ -56,7 +56,7 @@ LSCPU = {
 }
 
 
-class mocked_get_cpuinfo(object):
+class mocked_get_cpuinfo:
 
     def __init__(self, filename):
         self.filename = filename
diff --git a/repos/system_upgrade/common/actors/scancustomrepofile/tests/test_scancustomrepofile.py b/repos/system_upgrade/common/actors/scancustomrepofile/tests/test_scancustomrepofile.py
index 27dec8cc..772b33e6 100644
--- a/repos/system_upgrade/common/actors/scancustomrepofile/tests/test_scancustomrepofile.py
+++ b/repos/system_upgrade/common/actors/scancustomrepofile/tests/test_scancustomrepofile.py
@@ -23,7 +23,7 @@ _CUSTOM_REPOS = [
 _CUSTOM_REPO_FILE_MSG = CustomTargetRepositoryFile(file=scancustomrepofile.CUSTOM_REPO_PATH)
 
 
-class LoggerMocked(object):
+class LoggerMocked:
     def __init__(self):
         self.infomsg = None
         self.debugmsg = None
diff --git a/repos/system_upgrade/common/actors/scaninstalledtargetkernelversion/tests/test_scaninstalledkernel_scaninstalledtargetkernelversion.py b/repos/system_upgrade/common/actors/scaninstalledtargetkernelversion/tests/test_scaninstalledkernel_scaninstalledtargetkernelversion.py
index 570b6782..8f9f8b7a 100644
--- a/repos/system_upgrade/common/actors/scaninstalledtargetkernelversion/tests/test_scaninstalledkernel_scaninstalledtargetkernelversion.py
+++ b/repos/system_upgrade/common/actors/scaninstalledtargetkernelversion/tests/test_scaninstalledkernel_scaninstalledtargetkernelversion.py
@@ -15,7 +15,7 @@ OLD_KERNEL_NEVRA = 'kernel-core-0.1.2-3.el8.x86_64'
 OLD_RT_KERNEL_NEVRA = 'kernel-rt-core-0.1.2-3.rt4.5.el8.x86_64'
 
 
-class MockedRun(object):
+class MockedRun:
 
     def __init__(self, stdouts):
         # stdouts should be dict of list of strings: { str: [str1,str2,...]}
diff --git a/repos/system_upgrade/common/actors/scansaphana/tests/test_scansaphana.py b/repos/system_upgrade/common/actors/scansaphana/tests/test_scansaphana.py
index 38a1cae7..791cdc68 100644
--- a/repos/system_upgrade/common/actors/scansaphana/tests/test_scansaphana.py
+++ b/repos/system_upgrade/common/actors/scansaphana/tests/test_scansaphana.py
@@ -59,7 +59,7 @@ compiler-version: GCC 9
 lcmserver-artifact-version: 2.5.46'''))
 
 
-class CallMock(object):
+class CallMock:
     def __init__(self, ret):
         self.args = None
         self.ret = ret
@@ -69,7 +69,7 @@ class CallMock(object):
         return self.ret
 
 
-class SubprocessCall(object):
+class SubprocessCall:
     def __init__(self, admusername):
         self.admusername = admusername
 
@@ -108,7 +108,7 @@ def test_scansaphana_get_instance_status(monkeypatch):
 
 
 def test_scansaphana_parse_manifest(monkeypatch):
-    class _mock_open(object):
+    class _mock_open:
         def __init__(self, path, mode):
             self._fp = BytesIO(SAPHANA2_MANIFEST.encode('utf-8'))
 
diff --git a/repos/system_upgrade/common/actors/selinux/selinuxcontentscanner/tests/unit_test_selinuxcontentscanner.py b/repos/system_upgrade/common/actors/selinux/selinuxcontentscanner/tests/unit_test_selinuxcontentscanner.py
index 830eeac5..ce3ab7b5 100644
--- a/repos/system_upgrade/common/actors/selinux/selinuxcontentscanner/tests/unit_test_selinuxcontentscanner.py
+++ b/repos/system_upgrade/common/actors/selinux/selinuxcontentscanner/tests/unit_test_selinuxcontentscanner.py
@@ -3,7 +3,7 @@ from leapp.libraries.common.config import version
 from leapp.libraries.stdlib import CalledProcessError
 
 
-class run_mocked(object):
+class run_mocked:
     def __init__(self):
         self.args = []
         self.called = 0
@@ -39,7 +39,7 @@ class run_mocked(object):
         return {'stdout': stdout}
 
 
-class run_mocked_fail(object):
+class run_mocked_fail:
     def __init__(self):
         self.called = 0
 
diff --git a/repos/system_upgrade/common/actors/selinux/selinuxprepare/tests/unit_test_selinuxprepare.py b/repos/system_upgrade/common/actors/selinux/selinuxprepare/tests/unit_test_selinuxprepare.py
index c1ad06c5..9b234d65 100644
--- a/repos/system_upgrade/common/actors/selinux/selinuxprepare/tests/unit_test_selinuxprepare.py
+++ b/repos/system_upgrade/common/actors/selinux/selinuxprepare/tests/unit_test_selinuxprepare.py
@@ -3,7 +3,7 @@ from leapp.libraries.stdlib import api, CalledProcessError, run
 from leapp.models import SELinuxModule, SELinuxModules
 
 
-class run_mocked(object):
+class run_mocked:
     def __init__(self):
         self.args = []
         self.called = 0
diff --git a/repos/system_upgrade/common/actors/setetcreleasever/tests/test_setetcreleasever.py b/repos/system_upgrade/common/actors/setetcreleasever/tests/test_setetcreleasever.py
index a14dd2b8..546ce195 100644
--- a/repos/system_upgrade/common/actors/setetcreleasever/tests/test_setetcreleasever.py
+++ b/repos/system_upgrade/common/actors/setetcreleasever/tests/test_setetcreleasever.py
@@ -16,7 +16,7 @@ from leapp.models import (
 CUR_DIR = os.path.dirname(os.path.abspath(__file__))
 
 
-class mocked_set_releasever(object):
+class mocked_set_releasever:
     def __init__(self):
         self.content = None
 
diff --git a/repos/system_upgrade/common/actors/setuptargetrepos/libraries/setuptargetrepos_repomap.py b/repos/system_upgrade/common/actors/setuptargetrepos/libraries/setuptargetrepos_repomap.py
index 343ee2ea..9613da9e 100644
--- a/repos/system_upgrade/common/actors/setuptargetrepos/libraries/setuptargetrepos_repomap.py
+++ b/repos/system_upgrade/common/actors/setuptargetrepos/libraries/setuptargetrepos_repomap.py
@@ -18,7 +18,7 @@ def _get_channel_prio(pesid_repo):
     return priorities.get(pesid_repo.channel, 10)
 
 
-class RepoMapDataHandler(object):
+class RepoMapDataHandler:
     """
     Provide the basic functionality to work with the repository data easily.
     """
diff --git a/repos/system_upgrade/common/actors/storagescanner/tests/unit_test_storagescanner.py b/repos/system_upgrade/common/actors/storagescanner/tests/unit_test_storagescanner.py
index 3c7fcbd6..6879e52a 100644
--- a/repos/system_upgrade/common/actors/storagescanner/tests/unit_test_storagescanner.py
+++ b/repos/system_upgrade/common/actors/storagescanner/tests/unit_test_storagescanner.py
@@ -459,7 +459,7 @@ def test_get_lvdisplay_info(monkeypatch):
 
 def test_get_systemd_mount_info(monkeypatch):
 
-    class UdevDeviceMocked(object):
+    class UdevDeviceMocked:
         def __init__(self, device_node, path, model, wwn, fs_type, label, uuid):
             self.device_node = device_node
             # Simulate udev device attributes that should be queried
@@ -481,7 +481,7 @@ def test_get_systemd_mount_info(monkeypatch):
 
             return self.device_attributes[attribute]
 
-    class UdevContextMocked(object):
+    class UdevContextMocked:
         def __init__(self, mocked_devices):
             self.mocked_devices = mocked_devices
 
diff --git a/repos/system_upgrade/common/actors/systemd/checksystemdbrokensymlinks/tests/test_checksystemdbrokensymlinks.py b/repos/system_upgrade/common/actors/systemd/checksystemdbrokensymlinks/tests/test_checksystemdbrokensymlinks.py
index 2364f7a5..bcc33f13 100644
--- a/repos/system_upgrade/common/actors/systemd/checksystemdbrokensymlinks/tests/test_checksystemdbrokensymlinks.py
+++ b/repos/system_upgrade/common/actors/systemd/checksystemdbrokensymlinks/tests/test_checksystemdbrokensymlinks.py
@@ -38,7 +38,7 @@ def test_report_enabled_services_broken_symlinks(monkeypatch):
     assert all([s in created_reports.report_fields['summary'] for s in symlinks])
 
 
-class ReportBrokenSymlinks(object):
+class ReportBrokenSymlinks:
     def __init__(self):
         self.symlinks = []
 
diff --git a/repos/system_upgrade/common/actors/systemd/repairsystemdsymlinks/tests/test_repairsystemdsymlinks.py b/repos/system_upgrade/common/actors/systemd/repairsystemdsymlinks/tests/test_repairsystemdsymlinks.py
index 2394df5e..5771fc6c 100644
--- a/repos/system_upgrade/common/actors/systemd/repairsystemdsymlinks/tests/test_repairsystemdsymlinks.py
+++ b/repos/system_upgrade/common/actors/systemd/repairsystemdsymlinks/tests/test_repairsystemdsymlinks.py
@@ -10,7 +10,7 @@ from leapp.models import (
 )
 
 
-class MockedSystemdCmd(object):
+class MockedSystemdCmd:
     def __init__(self):
         self.units = []
 
diff --git a/repos/system_upgrade/common/actors/systemd/scansystemdsource/tests/test_scansystemdsource.py b/repos/system_upgrade/common/actors/systemd/scansystemdsource/tests/test_scansystemdsource.py
index 7b95a2df..f92657d3 100644
--- a/repos/system_upgrade/common/actors/systemd/scansystemdsource/tests/test_scansystemdsource.py
+++ b/repos/system_upgrade/common/actors/systemd/scansystemdsource/tests/test_scansystemdsource.py
@@ -73,7 +73,7 @@ _CALL_PROC_ERR = CalledProcessError(
 )
 
 
-class GetOrRaise(object):
+class GetOrRaise:
     def __init__(self, value):
         self.value = value
 
diff --git a/repos/system_upgrade/common/actors/systemd/scansystemdtarget/tests/test_scansystemdtarget.py b/repos/system_upgrade/common/actors/systemd/scansystemdtarget/tests/test_scansystemdtarget.py
index 227ba61a..2e806e25 100644
--- a/repos/system_upgrade/common/actors/systemd/scansystemdtarget/tests/test_scansystemdtarget.py
+++ b/repos/system_upgrade/common/actors/systemd/scansystemdtarget/tests/test_scansystemdtarget.py
@@ -73,7 +73,7 @@ _CALL_PROC_ERR = CalledProcessError(
 )
 
 
-class GetOrRaise(object):
+class GetOrRaise:
     def __init__(self, value):
         self.value = value
 
diff --git a/repos/system_upgrade/common/actors/systemd/setsystemdservicesstates/tests/test_setsystemdservicesstate.py b/repos/system_upgrade/common/actors/systemd/setsystemdservicesstates/tests/test_setsystemdservicesstate.py
index fa17a94c..976da6da 100644
--- a/repos/system_upgrade/common/actors/systemd/setsystemdservicesstates/tests/test_setsystemdservicesstate.py
+++ b/repos/system_upgrade/common/actors/systemd/setsystemdservicesstates/tests/test_setsystemdservicesstate.py
@@ -8,7 +8,7 @@ from leapp.libraries.stdlib import api, CalledProcessError
 from leapp.models import SystemdServicesTasks
 
 
-class MockedSystemdCmd(object):
+class MockedSystemdCmd:
     def __init__(self):
         self.units = []
 
diff --git a/repos/system_upgrade/common/actors/systemfacts/tests/test_systemfacts.py b/repos/system_upgrade/common/actors/systemfacts/tests/test_systemfacts.py
index 5831b979..16405b15 100644
--- a/repos/system_upgrade/common/actors/systemfacts/tests/test_systemfacts.py
+++ b/repos/system_upgrade/common/actors/systemfacts/tests/test_systemfacts.py
@@ -61,7 +61,7 @@ def test_aslist(current_actor_libraries):
 )
 def test_get_system_users(monkeypatch, etc_passwd_names, etc_passwd_directory, skipped_user_names):
 
-    class MockedPwdEntry(object):
+    class MockedPwdEntry:
         def __init__(self, pw_name, pw_uid, pw_gid, pw_dir):
             self.pw_name = pw_name
             self.pw_uid = pw_uid
@@ -99,7 +99,7 @@ def test_get_system_users(monkeypatch, etc_passwd_names, etc_passwd_directory, s
 )
 def test_get_system_groups(monkeypatch, etc_group_names, skipped_group_names):
 
-    class MockedGrpEntry(object):
+    class MockedGrpEntry:
         def __init__(self, gr_name, gr_gid, gr_mem):
             self.gr_name = gr_name
             self.gr_gid = gr_gid
diff --git a/repos/system_upgrade/common/actors/systemfacts/tests/test_systemfacts_grub.py b/repos/system_upgrade/common/actors/systemfacts/tests/test_systemfacts_grub.py
index 08552771..7fd774b5 100644
--- a/repos/system_upgrade/common/actors/systemfacts/tests/test_systemfacts_grub.py
+++ b/repos/system_upgrade/common/actors/systemfacts/tests/test_systemfacts_grub.py
@@ -4,7 +4,7 @@ from leapp.libraries.actor import systemfacts
 from leapp.models import DefaultGrub
 
 
-class RunMocked(object):
+class RunMocked:
     def __init__(self, cmd_result):
         self.called = 0
         self.cmd_result = cmd_result
diff --git a/repos/system_upgrade/common/actors/systemfacts/tests/test_systemfacts_selinux.py b/repos/system_upgrade/common/actors/systemfacts/tests/test_systemfacts_selinux.py
index b9e0c71d..d36900bd 100644
--- a/repos/system_upgrade/common/actors/systemfacts/tests/test_systemfacts_selinux.py
+++ b/repos/system_upgrade/common/actors/systemfacts/tests/test_systemfacts_selinux.py
@@ -74,7 +74,7 @@ def test_selinux_disabled(monkeypatch):
     assert SELinuxFacts(**expected_data) == get_selinux_status()
 
 
-class MockNoConfigFileOSError(object):
+class MockNoConfigFileOSError:
     def __init__(self):
         raise OSError
 
diff --git a/repos/system_upgrade/common/actors/targetuserspacecreator/libraries/userspacegen.py b/repos/system_upgrade/common/actors/targetuserspacecreator/libraries/userspacegen.py
index 26fec2d9..899d72f7 100644
--- a/repos/system_upgrade/common/actors/targetuserspacecreator/libraries/userspacegen.py
+++ b/repos/system_upgrade/common/actors/targetuserspacecreator/libraries/userspacegen.py
@@ -79,7 +79,7 @@ class BrokenSymlinkError(Exception):
     """Raised when we encounter a broken symlink where we weren't expecting it."""
 
 
-class _InputData(object):
+class _InputData:
     def __init__(self):
         self._consume_data()
 
diff --git a/repos/system_upgrade/common/actors/targetuserspacecreator/tests/unit_test_targetuserspacecreator.py b/repos/system_upgrade/common/actors/targetuserspacecreator/tests/unit_test_targetuserspacecreator.py
index e78c3ac7..1e5b87b0 100644
--- a/repos/system_upgrade/common/actors/targetuserspacecreator/tests/unit_test_targetuserspacecreator.py
+++ b/repos/system_upgrade/common/actors/targetuserspacecreator/tests/unit_test_targetuserspacecreator.py
@@ -36,7 +36,7 @@ def adjust_cwd():
     os.chdir(previous_cwd)
 
 
-class MockedMountingBase(object):
+class MockedMountingBase:
     def __init__(self, **dummy_kwargs):
         self.called_copytree_from = []
         self.target = ''
@@ -923,7 +923,7 @@ _SAEE = StopActorExecutionError
 _SAE = StopActorExecution
 
 
-class MockedConsume(object):
+class MockedConsume:
     def __init__(self, *args):
         self._msgs = []
         for arg in args:
diff --git a/repos/system_upgrade/common/actors/trustedgpgkeysscanner/tests/test_trustedgpgkeys.py b/repos/system_upgrade/common/actors/trustedgpgkeysscanner/tests/test_trustedgpgkeys.py
index 0d98aad7..7497c2a9 100644
--- a/repos/system_upgrade/common/actors/trustedgpgkeysscanner/tests/test_trustedgpgkeys.py
+++ b/repos/system_upgrade/common/actors/trustedgpgkeysscanner/tests/test_trustedgpgkeys.py
@@ -32,7 +32,7 @@ def _get_test_installed_rmps(fps):
     return InstalledRPM(items=rpms)
 
 
-class MockedGetGpgFromFile(object):
+class MockedGetGpgFromFile:
     def __init__(self, file_fps_tuples):
         # e.g. file_fps_tuple = [('/mydir/myfile', ['0000ff31', '0000ff32'])]
         self._data = {}
diff --git a/repos/system_upgrade/common/actors/updategrubcore/tests/test_updategrubcore.py b/repos/system_upgrade/common/actors/updategrubcore/tests/test_updategrubcore.py
index 27a4a245..93816103 100644
--- a/repos/system_upgrade/common/actors/updategrubcore/tests/test_updategrubcore.py
+++ b/repos/system_upgrade/common/actors/updategrubcore/tests/test_updategrubcore.py
@@ -20,7 +20,7 @@ def raise_call_error(args=None):
     )
 
 
-class run_mocked(object):
+class run_mocked:
     def __init__(self, raise_err=False, raise_callback=raise_call_error):
         self.called = 0
         self.args = []
diff --git a/repos/system_upgrade/common/actors/verifycheckresults/tests/unit_test_verifycheckresults.py b/repos/system_upgrade/common/actors/verifycheckresults/tests/unit_test_verifycheckresults.py
index 6f459a69..6df9ff20 100644
--- a/repos/system_upgrade/common/actors/verifycheckresults/tests/unit_test_verifycheckresults.py
+++ b/repos/system_upgrade/common/actors/verifycheckresults/tests/unit_test_verifycheckresults.py
@@ -7,7 +7,7 @@ from leapp.libraries.actor import verifycheckresults
 from leapp.libraries.stdlib import api
 
 
-class Report(object):
+class Report:
     def __init__(self, message):
         self.message = message
 
diff --git a/repos/system_upgrade/common/actors/xfsinfoscanner/tests/unit_test_xfsinfoscanner.py b/repos/system_upgrade/common/actors/xfsinfoscanner/tests/unit_test_xfsinfoscanner.py
index 71f46b47..34e542a8 100644
--- a/repos/system_upgrade/common/actors/xfsinfoscanner/tests/unit_test_xfsinfoscanner.py
+++ b/repos/system_upgrade/common/actors/xfsinfoscanner/tests/unit_test_xfsinfoscanner.py
@@ -146,7 +146,7 @@ TEST_XFS_INFO_FTYPE0_MODEL = XFSInfo(
 )
 
 
-class run_mocked(object):
+class run_mocked:
     def __init__(self):
         self.called = 0
         self.args = None
diff --git a/repos/system_upgrade/common/libraries/grub.py b/repos/system_upgrade/common/libraries/grub.py
index cd960ea4..71432371 100644
--- a/repos/system_upgrade/common/libraries/grub.py
+++ b/repos/system_upgrade/common/libraries/grub.py
@@ -30,7 +30,7 @@ def canonical_path_to_efi_format(canonical_path):
     return canonical_path.replace(EFI_MOUNTPOINT[:-1], "").replace("/", "\\")
 
 
-class EFIBootLoaderEntry(object):
+class EFIBootLoaderEntry:
     """
     Representation of an UEFI boot loader entry.
     """
@@ -102,7 +102,7 @@ class EFIBootLoaderEntry(object):
         return EFIBootLoaderEntry._efi_path_to_canonical(match.groups('path')[0])
 
 
-class EFIBootInfo(object):
+class EFIBootInfo:
     """
     Data about the current UEFI boot configuration.
 
diff --git a/repos/system_upgrade/common/libraries/kernel.py b/repos/system_upgrade/common/libraries/kernel.py
index dac21b06..fc8c1167 100644
--- a/repos/system_upgrade/common/libraries/kernel.py
+++ b/repos/system_upgrade/common/libraries/kernel.py
@@ -9,7 +9,7 @@ KernelPkgInfo = namedtuple('KernelPkgInfo', ('name', 'version', 'release', 'arch
 KERNEL_UNAME_R_PROVIDES = ['kernel-uname-r', 'kernel-rt-uname-r']
 
 
-class KernelType(object):
+class KernelType:
     ORDINARY = 'ordinary'
     REALTIME = 'realtime'
 
diff --git a/repos/system_upgrade/common/libraries/mounting.py b/repos/system_upgrade/common/libraries/mounting.py
index 2eb19d31..4e99e31e 100644
--- a/repos/system_upgrade/common/libraries/mounting.py
+++ b/repos/system_upgrade/common/libraries/mounting.py
@@ -16,7 +16,7 @@ ALWAYS_BIND = []
 ErrorData = namedtuple('ErrorData', ['summary', 'details'])
 
 
-class MountingMode(object):
+class MountingMode:
     """
     MountingMode are types of mounts supported by the library
     """
@@ -50,9 +50,9 @@ class MountError(Exception):
         self.details = details
 
 
-class IsolationType(object):
+class IsolationType:
     """ Implementations for the different isolated actions types """
-    class _Implementation(object):
+    class _Implementation:
         """ Base class for all isolated actions """
 
         def __init__(self, target, **kwargs):
@@ -129,7 +129,7 @@ class IsolationType(object):
         """ Execute the given commands and perform the given operations on the real system and not isolated. """
 
 
-class IsolatedActions(object):
+class IsolatedActions:
     """ This class allows to perform actions in a manner as if the given base_dir would be the current root """
 
     _isolated = True
@@ -280,7 +280,7 @@ class NotIsolatedActions(IsolatedActions):
         super(NotIsolatedActions, self).__init__(base_dir=base_dir, implementation=IsolationType.NONE)
 
 
-class MountConfig(object):
+class MountConfig:
     """ Options for Mount """
     _Options = namedtuple('_Options', ('should_create', 'should_cleanup'))
     AttachOnly = _Options(should_create=False, should_cleanup=False)
@@ -293,7 +293,7 @@ class MountConfig(object):
     """ Create all necessary directories and perform mount calls and cleanup afterwards """
 
 
-class MountingBase(object):
+class MountingBase:
     """ Base class for all mount operations """
 
     def __init__(self, source, target, mode, config=MountConfig.Mount):
diff --git a/repos/system_upgrade/common/libraries/multipathutil.py b/repos/system_upgrade/common/libraries/multipathutil.py
index 47d0d86e..cb5c3693 100644
--- a/repos/system_upgrade/common/libraries/multipathutil.py
+++ b/repos/system_upgrade/common/libraries/multipathutil.py
@@ -38,7 +38,7 @@ def write_config(path, contents):
         )
 
 
-class LineData(object):
+class LineData:
     TYPE_BLANK = 0
     TYPE_SECTION_START = 1
     TYPE_SECTION_END = 2
diff --git a/repos/system_upgrade/common/libraries/rhui.py b/repos/system_upgrade/common/libraries/rhui.py
index 5c293304..c90c8c14 100644
--- a/repos/system_upgrade/common/libraries/rhui.py
+++ b/repos/system_upgrade/common/libraries/rhui.py
@@ -21,7 +21,7 @@ RHUI_PKI_PRIVATE_DIR = os.path.join(RHUI_PKI_DIR, 'private')
 AWS_DNF_PLUGIN_NAME = 'amazon-id.py'
 
 
-class ContentChannel(object):
+class ContentChannel:
     GA = 'ga'
     TUV = 'tuv'
     E4S = 'e4s'
@@ -30,14 +30,14 @@ class ContentChannel(object):
     BETA = 'beta'
 
 
-class RHUIVariant(object):
+class RHUIVariant:
     ORDINARY = 'ordinary'  # Special value - not displayed in report/errors
     SAP = 'sap'
     SAP_APPS = 'sap-apps'
     SAP_HA = 'sap-ha'
 
 
-class RHUIProvider(object):
+class RHUIProvider:
     GOOGLE = 'Google'
     AZURE = 'Azure'
     AWS = 'AWS'
@@ -74,7 +74,7 @@ RHUISetup = namedtuple(
 """
 
 
-class RHUIFamily(object):
+class RHUIFamily:
     def __init__(self, provider, client_files_folder='', variant=RHUIVariant.ORDINARY, arch=arch.ARCH_X86_64,):
         self.provider = provider
         self.client_files_folder = client_files_folder
diff --git a/repos/system_upgrade/common/libraries/rpms.py b/repos/system_upgrade/common/libraries/rpms.py
index bd3a2961..8f98c1a4 100644
--- a/repos/system_upgrade/common/libraries/rpms.py
+++ b/repos/system_upgrade/common/libraries/rpms.py
@@ -3,7 +3,7 @@ from leapp.libraries.common.config.version import get_source_major_version
 from leapp.models import InstalledRPM
 
 
-class LeappComponents(object):
+class LeappComponents:
     """
     Supported component values to be used with get_packages_function:
     * FRAMEWORK - the core of the leapp project: the leapp executable and
diff --git a/repos/system_upgrade/common/libraries/tests/test_grub.py b/repos/system_upgrade/common/libraries/tests/test_grub.py
index 9bc9f682..d6f428bb 100644
--- a/repos/system_upgrade/common/libraries/tests/test_grub.py
+++ b/repos/system_upgrade/common/libraries/tests/test_grub.py
@@ -98,7 +98,7 @@ def raise_call_error(args=None):
     )
 
 
-class RunMocked(object):
+class RunMocked:
 
     def __init__(self, raise_err=False, boot_on_raid=False):
         self.called = 0
diff --git a/repos/system_upgrade/common/libraries/tests/test_mdraid.py b/repos/system_upgrade/common/libraries/tests/test_mdraid.py
index d536beec..8668be8c 100644
--- a/repos/system_upgrade/common/libraries/tests/test_mdraid.py
+++ b/repos/system_upgrade/common/libraries/tests/test_mdraid.py
@@ -20,7 +20,7 @@ def raise_call_error(args=None):
     )
 
 
-class RunMocked(object):
+class RunMocked:
 
     def __init__(self, raise_err=False):
         self.called = 0
diff --git a/repos/system_upgrade/common/libraries/tests/test_persistentnetnames_library.py b/repos/system_upgrade/common/libraries/tests/test_persistentnetnames_library.py
index 2c399888..74aa08fa 100644
--- a/repos/system_upgrade/common/libraries/tests/test_persistentnetnames_library.py
+++ b/repos/system_upgrade/common/libraries/tests/test_persistentnetnames_library.py
@@ -3,7 +3,7 @@ from leapp.libraries.common.testutils import produce_mocked
 from leapp.libraries.stdlib import api
 
 
-class AttributesTest(object):
+class AttributesTest:
     def __init__(self):
         self.attributes = {
             'address': b'fa:16:3e:cd:26:5a'
@@ -15,7 +15,7 @@ class AttributesTest(object):
         raise KeyError
 
 
-class DeviceTest(object):
+class DeviceTest:
     def __init__(self):
         self.dict_data = {
              'ID_NET_DRIVER': 'virtio_net',
diff --git a/repos/system_upgrade/common/libraries/tests/test_rhsm.py b/repos/system_upgrade/common/libraries/tests/test_rhsm.py
index b643cd0d..84a1bd5e 100644
--- a/repos/system_upgrade/common/libraries/tests/test_rhsm.py
+++ b/repos/system_upgrade/common/libraries/tests/test_rhsm.py
@@ -62,7 +62,7 @@ RHSM_ENABLED_REPOS = [
 ]
 
 
-class IsolatedActionsMocked(object):
+class IsolatedActionsMocked:
     def __init__(self, call_stdout=None, raise_err=False):
         self.commands_called = []
         self.call_return = {'stdout': call_stdout, 'stderr': None}
diff --git a/repos/system_upgrade/common/libraries/testutils.py b/repos/system_upgrade/common/libraries/testutils.py
index 3e145d91..328a7ede 100644
--- a/repos/system_upgrade/common/libraries/testutils.py
+++ b/repos/system_upgrade/common/libraries/testutils.py
@@ -10,7 +10,7 @@ from leapp.models import EnvVar, IPUSourceToPossibleTargets
 from leapp.utils.deprecation import deprecated
 
 
-class produce_mocked(object):
+class produce_mocked:
     def __init__(self):
         self.called = 0
         self.model_instances = []
@@ -20,7 +20,7 @@ class produce_mocked(object):
         self.model_instances.extend(list(model_instances))
 
 
-class create_report_mocked(object):
+class create_report_mocked:
     def __init__(self):
         self.called = 0
         self.reports = []
@@ -38,7 +38,7 @@ class create_report_mocked(object):
         return {}
 
 
-class logger_mocked(object):
+class logger_mocked:
     def __init__(self):
         self.dbgmsg = []
         self.infomsg = []
@@ -77,7 +77,7 @@ def _make_default_config(actor_config_schema):
 # Note: The constructor of the following class takes in too many arguments (R0913). A builder-like
 # pattern would be nice here. Ideally, the builder should actively prevent the developer from setting fields
 # that do not affect actor's behavior in __setattr__.
-class CurrentActorMocked(object):  # pylint:disable=R0904
+class CurrentActorMocked:  # pylint:disable=R0904
     def __init__(self, arch=architecture.ARCH_X86_64, envars=None,  # pylint:disable=R0913
                  kernel='3.10.0-957.43.1.el7.x86_64',
                  release_id='rhel', src_ver='7.8', dst_ver='8.1', msgs=None, flavour='default', config=None,
diff --git a/repos/system_upgrade/el8toel9/actors/addarmbootloaderworkaround/tests/test_addarmbootloaderworkaround.py b/repos/system_upgrade/el8toel9/actors/addarmbootloaderworkaround/tests/test_addarmbootloaderworkaround.py
index 4f990e00..8c41cc7b 100644
--- a/repos/system_upgrade/el8toel9/actors/addarmbootloaderworkaround/tests/test_addarmbootloaderworkaround.py
+++ b/repos/system_upgrade/el8toel9/actors/addarmbootloaderworkaround/tests/test_addarmbootloaderworkaround.py
@@ -35,7 +35,7 @@ class MockEFIBootInfo:
         }
 
 
-class IsolatedActionsMocked(object):
+class IsolatedActionsMocked:
     def __init__(self):
         self.copytree_from_calls = []
 
diff --git a/repos/system_upgrade/el8toel9/actors/cloud/ensurevalidgrubcfghybrid/tests/test_ensurevalidgrubcfghybrid.py b/repos/system_upgrade/el8toel9/actors/cloud/ensurevalidgrubcfghybrid/tests/test_ensurevalidgrubcfghybrid.py
index 3ba46cb5..72356172 100644
--- a/repos/system_upgrade/el8toel9/actors/cloud/ensurevalidgrubcfghybrid/tests/test_ensurevalidgrubcfghybrid.py
+++ b/repos/system_upgrade/el8toel9/actors/cloud/ensurevalidgrubcfghybrid/tests/test_ensurevalidgrubcfghybrid.py
@@ -19,7 +19,7 @@ def raise_call_error(args=None):
     )
 
 
-class run_mocked(object):
+class run_mocked:
     def __init__(self, raise_err=False):
         self.called = 0
         self.args = []
diff --git a/repos/system_upgrade/el8toel9/actors/grub2mkconfigonppc64/tests/test_grub2mkconfigonppc64.py b/repos/system_upgrade/el8toel9/actors/grub2mkconfigonppc64/tests/test_grub2mkconfigonppc64.py
index afa999d0..9d5da4b2 100644
--- a/repos/system_upgrade/el8toel9/actors/grub2mkconfigonppc64/tests/test_grub2mkconfigonppc64.py
+++ b/repos/system_upgrade/el8toel9/actors/grub2mkconfigonppc64/tests/test_grub2mkconfigonppc64.py
@@ -12,7 +12,7 @@ from leapp.models import DefaultGrub, DefaultGrubInfo, FirmwareFacts
 CUR_DIR = os.path.dirname(os.path.abspath(__file__))
 
 
-class MockedRun(object):
+class MockedRun:
     def __init__(self):
         self.commands = []
 
@@ -36,7 +36,7 @@ def test_run_grub2mkconfig(monkeypatch, cmd_issued):
         'menuentry "Red Hat Enterprise Linux Server (3.10.0-1160.45.1.el7.x86_64) 7.9 (Maipo)"'
     )
 
-    class _mock_open(object):
+    class _mock_open:
         def __init__(self, path, mode):
             input_ = grub2_cfg_non_bls_excerpt if cmd_issued else grub2_cfg_bls_excerpt
             self._fp = StringIO(input_)
diff --git a/repos/system_upgrade/el8toel9/actors/opensshdropindirectory/tests/test_opensshdropindirectory_prepend.py b/repos/system_upgrade/el8toel9/actors/opensshdropindirectory/tests/test_opensshdropindirectory_prepend.py
index bccadf4b..a6665313 100644
--- a/repos/system_upgrade/el8toel9/actors/opensshdropindirectory/tests/test_opensshdropindirectory_prepend.py
+++ b/repos/system_upgrade/el8toel9/actors/opensshdropindirectory/tests/test_opensshdropindirectory_prepend.py
@@ -3,7 +3,7 @@ import pytest
 from leapp.libraries.actor.opensshdropindirectory import prepend_string_if_not_present
 
 
-class MockFile(object):
+class MockFile:
     def __init__(self, path, content=None):
         self.path = path
         self.content = content
diff --git a/repos/system_upgrade/el8toel9/actors/opensslproviders/tests/test_add_provider.py b/repos/system_upgrade/el8toel9/actors/opensslproviders/tests/test_add_provider.py
index 1c1cd209..78f2e9c6 100644
--- a/repos/system_upgrade/el8toel9/actors/opensslproviders/tests/test_add_provider.py
+++ b/repos/system_upgrade/el8toel9/actors/opensslproviders/tests/test_add_provider.py
@@ -64,7 +64,7 @@ def test_append(lines, add, comment, expected):
     assert r == expected
 
 
-class MockFile(object):
+class MockFile:
     def __init__(self, content=None):
         self.content = content
         self.error = False
diff --git a/repos/system_upgrade/el8toel9/actors/scanblacklistca/tests/unit_test_scanblacklistca.py b/repos/system_upgrade/el8toel9/actors/scanblacklistca/tests/unit_test_scanblacklistca.py
index 4eab6df5..c2ae4639 100644
--- a/repos/system_upgrade/el8toel9/actors/scanblacklistca/tests/unit_test_scanblacklistca.py
+++ b/repos/system_upgrade/el8toel9/actors/scanblacklistca/tests/unit_test_scanblacklistca.py
@@ -14,7 +14,7 @@ TESTLINK = "linkca.cert"
 SUBDIR = "casdir"
 
 
-class MockedGetFiles(object):
+class MockedGetFiles:
     def __init__(self, files=None, error=None):
         self.called = 0
         self.files = files
@@ -33,7 +33,7 @@ class MockedGetFiles(object):
         return ret
 
 
-class MockedGetDirs(object):
+class MockedGetDirs:
     def __init__(self, dirs):
         self.called = 0
         self.dirs = dirs
diff --git a/repos/system_upgrade/el8toel9/actors/sssdfacts/libraries/sssdfacts8to9.py b/repos/system_upgrade/el8toel9/actors/sssdfacts/libraries/sssdfacts8to9.py
index a2537eeb..1482373e 100644
--- a/repos/system_upgrade/el8toel9/actors/sssdfacts/libraries/sssdfacts8to9.py
+++ b/repos/system_upgrade/el8toel9/actors/sssdfacts/libraries/sssdfacts8to9.py
@@ -1,7 +1,7 @@
 from leapp.models import SSSDConfig8to9
 
 
-class SSSDFactsLibrary(object):
+class SSSDFactsLibrary:
     """
     Helper library from SSSDFacts actor to allow unit testing.
     """
-- 
2.51.1