diff --git a/wcs/admin/api_access.py b/wcs/admin/api_access.py
index e5e5e58ae..d4538ad0a 100644
--- a/wcs/admin/api_access.py
+++ b/wcs/admin/api_access.py
@@ -33,7 +33,7 @@ from wcs.qommon.form import StringWidget
 from wcs.qommon.form import TextWidget
 
 
-class ApiAccessUI(object):
+class ApiAccessUI:
     def __init__(self, api_access):
         self.api_access = api_access
         if self.api_access is None:
diff --git a/wcs/admin/categories.py b/wcs/admin/categories.py
index b555d5eb0..12bbd0197 100644
--- a/wcs/admin/categories.py
+++ b/wcs/admin/categories.py
@@ -34,7 +34,7 @@ from wcs.qommon.form import StringWidget
 from wcs.qommon.form import WysiwygTextWidget
 
 
-class CategoryUI(object):
+class CategoryUI:
     category_class = Category
 
     def __init__(self, category):
diff --git a/wcs/admin/data_sources.py b/wcs/admin/data_sources.py
index 5c1246998..e484b90eb 100644
--- a/wcs/admin/data_sources.py
+++ b/wcs/admin/data_sources.py
@@ -48,7 +48,7 @@ from wcs.qommon.form import get_response
 from wcs.qommon.form import get_session
 
 
-class NamedDataSourceUI(object):
+class NamedDataSourceUI:
     def __init__(self, datasource):
         self.datasource = datasource
         if self.datasource is None:
diff --git a/wcs/admin/forms.py b/wcs/admin/forms.py
index 78da0a954..d6788f92d 100644
--- a/wcs/admin/forms.py
+++ b/wcs/admin/forms.py
@@ -86,7 +86,7 @@ def get_categories(category_class):
     return [x[1:] for x in t]
 
 
-class FormDefUI(object):
+class FormDefUI:
     formdef_class = FormDef
     category_class = Category
 
@@ -1521,7 +1521,7 @@ class FormDefPage(Directory):
             return self.archive_submit(form)
 
     def archive_submit(self, form):
-        class Archiver(object):
+        class Archiver:
             def __init__(self, formdef):
                 self.formdef = formdef
 
@@ -1625,7 +1625,7 @@ class FormDefPage(Directory):
             return self.anonymise_submit(form)
 
     def anonymise_submit(self, form):
-        class Anonymiser(object):
+        class Anonymiser:
             def __init__(self, formdef, status_ids, before_date):
                 self.formdef = formdef
                 self.status_ids = ["wf-%s" % id for id in status_ids]
diff --git a/wcs/admin/roles.py b/wcs/admin/roles.py
index 76dc278ec..86b67a65b 100644
--- a/wcs/admin/roles.py
+++ b/wcs/admin/roles.py
@@ -35,7 +35,7 @@ from wcs.qommon.form import WidgetList
 from wcs.roles import get_user_roles
 
 
-class RoleUI(object):
+class RoleUI:
     def __init__(self, role):
         self.role = role
         if self.role is None:
diff --git a/wcs/admin/settings.py b/wcs/admin/settings.py
index 5791a763a..e9c2cfdfb 100644
--- a/wcs/admin/settings.py
+++ b/wcs/admin/settings.py
@@ -1005,7 +1005,7 @@ class SettingsDirectory(QommonSettingsDirectory):
             r += form.render()
             return r.getvalue()
 
-        class Exporter(object):
+        class Exporter:
             def __init__(self, dirs, settings):
                 self.app_dir = get_publisher().app_dir
                 self.dirs = dirs
diff --git a/wcs/admin/users.py b/wcs/admin/users.py
index 301d23db7..4c01766d1 100644
--- a/wcs/admin/users.py
+++ b/wcs/admin/users.py
@@ -46,7 +46,7 @@ from wcs.qommon.ident.idp import is_idp_managing_user_attributes
 from wcs.qommon.ident.idp import is_idp_managing_user_roles
 
 
-class UserUI(object):
+class UserUI:
     def __init__(self, user):
         self.user = user
 
diff --git a/wcs/admin/workflows.py b/wcs/admin/workflows.py
index 0de7b8a4f..ea99f7ce5 100644
--- a/wcs/admin/workflows.py
+++ b/wcs/admin/workflows.py
@@ -301,7 +301,7 @@ def graphviz(workflow, url_prefix='', select=None, svg=True, include=False):
     return out
 
 
-class WorkflowUI(object):
+class WorkflowUI:
     def __init__(self, workflow):
         self.workflow = workflow
 
diff --git a/wcs/admin/wscalls.py b/wcs/admin/wscalls.py
index fdb1b0831..ae14cf62f 100644
--- a/wcs/admin/wscalls.py
+++ b/wcs/admin/wscalls.py
@@ -42,7 +42,7 @@ from wcs.wscalls import NamedWsCall
 from wcs.wscalls import WsCallRequestWidget
 
 
-class NamedWsCallUI(object):
+class NamedWsCallUI:
     def __init__(self, wscall):
         self.wscall = wscall
         if self.wscall is None:
diff --git a/wcs/backoffice/management.py b/wcs/backoffice/management.py
index 8c2d59e49..a96bbb196 100644
--- a/wcs/backoffice/management.py
+++ b/wcs/backoffice/management.py
@@ -3370,7 +3370,7 @@ class FormBackOfficeStatusPage(FormStatusPage):
         return self.test_tool_result()
 
 
-class FakeField(object):
+class FakeField:
     def __init__(self, id, type_, label, addable=True):
         self.id = id
         self.type = type_
diff --git a/wcs/cache.py b/wcs/cache.py
index ff9be2c20..77f8cb9ce 100644
--- a/wcs/cache.py
+++ b/wcs/cache.py
@@ -20,7 +20,7 @@ from django.utils.module_loading import import_string
 from quixote import get_publisher
 
 
-class TenantBaseCache(object):
+class TenantBaseCache:
     '''Prepend the tenant application directory to the cache prefix'''
 
     def set_key_prefix(self, prefix):
diff --git a/wcs/conditions.py b/wcs/conditions.py
index d595da0ba..8d513e0c6 100644
--- a/wcs/conditions.py
+++ b/wcs/conditions.py
@@ -30,7 +30,7 @@ class ValidationError(ValueError):
     pass
 
 
-class Condition(object):
+class Condition:
     record_errors = True
     log_errors = False
 
diff --git a/wcs/data_sources.py b/wcs/data_sources.py
index 0746143ba..ec1889a2c 100644
--- a/wcs/data_sources.py
+++ b/wcs/data_sources.py
@@ -810,7 +810,7 @@ class StubNamedDataSource(NamedDataSource):
         return '<StubNamedDataSource %r>' % self.name
 
 
-class DataSourcesSubstitutionProxy(object):
+class DataSourcesSubstitutionProxy:
     def __getattr__(self, attr):
         return get_structured_items(NamedDataSource.get_by_slug(attr).data_source)
 
diff --git a/wcs/fields.py b/wcs/fields.py
index 0512a6b03..1a837531b 100644
--- a/wcs/fields.py
+++ b/wcs/fields.py
@@ -248,7 +248,7 @@ class PrefillSelectionWidget(CompositeWidget):
         return r.getvalue()
 
 
-class Field(object):
+class Field:
     id = None
     type = None
     varname = None
@@ -1762,7 +1762,7 @@ class MapOptionsMixin:
             )
 
 
-class ItemFieldMixin(object):
+class ItemFieldMixin:
     def add_items_fields_admin_form(self, form):
         real_data_source = data_sources.get_real(self.data_source)
         form.add(
@@ -2444,7 +2444,7 @@ class PageCondition(Condition):
         # 1) feed the form_var_* variables in the global substitution system,
         # they will shadow formdata context variables with their new "live"
         # value, this may be useful when evaluating data sources.
-        class ConditionVars(object):
+        class ConditionVars:
             def __init__(self, id_dict_var):
                 # keep track of reference dictionary
                 self.id_dict_var = id_dict_var
diff --git a/wcs/formdata.py b/wcs/formdata.py
index 1d5c1632f..b9cc1397d 100644
--- a/wcs/formdata.py
+++ b/wcs/formdata.py
@@ -112,7 +112,7 @@ def flatten_dict(d):
             del d[k]
 
 
-class Evolution(object):
+class Evolution:
     who = None
     status = None
     time = None
diff --git a/wcs/formdef.py b/wcs/formdef.py
index 51ec0f0e1..500c7a482 100644
--- a/wcs/formdef.py
+++ b/wcs/formdef.py
@@ -77,7 +77,7 @@ class FormdefImportRecoverableError(FormdefImportError):
     pass
 
 
-class FormField(object):
+class FormField:
     # only used to unpickle form fields from older (<200603) versions
     def __setstate__(self, dict):
         type = dict['type']
@@ -1523,7 +1523,7 @@ class FormDef(StorableObject):
             if changed:
                 formdef.store()
 
-    class _EmptyClass(object):  # helper for instance creation without calling __init__
+    class _EmptyClass:  # helper for instance creation without calling __init__
         pass
 
     def __copy__(self, memo=None, deepcopy=False):
diff --git a/wcs/forms/backoffice.py b/wcs/forms/backoffice.py
index 68becab2e..8fc64edbd 100644
--- a/wcs/forms/backoffice.py
+++ b/wcs/forms/backoffice.py
@@ -31,7 +31,7 @@ from ..qommon import misc
 from ..qommon.backoffice.listing import pagination_links
 
 
-class FormDefUI(object):
+class FormDefUI:
     def __init__(self, formdef):
         self.formdef = formdef
 
diff --git a/wcs/forms/common.py b/wcs/forms/common.py
index 8145adf48..fde3502db 100644
--- a/wcs/forms/common.py
+++ b/wcs/forms/common.py
@@ -128,7 +128,7 @@ class FilesDirectory(Directory):
         return FileDirectory(self.formdata, reference=component)
 
 
-class FormTemplateMixin(object):
+class FormTemplateMixin:
     def get_formdef_template_variants(self, template_names):
         template_part_names = [(os.path.dirname(x), os.path.basename(x)) for x in template_names]
         for dirname, basename in template_part_names:
diff --git a/wcs/logged_errors.py b/wcs/logged_errors.py
index 92087be07..f777e79c8 100644
--- a/wcs/logged_errors.py
+++ b/wcs/logged_errors.py
@@ -23,7 +23,7 @@ from wcs.workflows import Workflow
 from .qommon.misc import simplify
 
 
-class LoggedError(object):
+class LoggedError:
     _names = 'logged-errors'
 
     id = None
diff --git a/wcs/portfolio.py b/wcs/portfolio.py
index 703c7f67b..c99db74fb 100644
--- a/wcs/portfolio.py
+++ b/wcs/portfolio.py
@@ -55,7 +55,7 @@ def fargo_url(url):
 
 # Allow doing a signed POST in an afterjob, as fargo_url() does not work if no request is in
 # context; so we do it in the constructor.
-class fargo_post_json_async(object):
+class fargo_post_json_async:
     def __init__(self, url, payload):
         self.url = fargo_url(url)
         self.payload = payload
diff --git a/wcs/qommon/cron.py b/wcs/qommon/cron.py
index 3de755063..977af85e5 100644
--- a/wcs/qommon/cron.py
+++ b/wcs/qommon/cron.py
@@ -19,7 +19,7 @@ import sys
 from django.conf import settings
 
 
-class CronJob(object):
+class CronJob:
     name = None
     hours = None
     minutes = None
diff --git a/wcs/qommon/ctl.py b/wcs/qommon/ctl.py
index b411a3531..5bb29c043 100644
--- a/wcs/qommon/ctl.py
+++ b/wcs/qommon/ctl.py
@@ -33,7 +33,7 @@ from . import _
 qommon._commands = {}
 
 
-class Command(object):
+class Command:
     doc = ''
     name = None
     usage_args = '[ options ... ]'
@@ -88,7 +88,7 @@ class Command(object):
         qommon._commands[cls.name] = cls
 
 
-class Ctl(object):
+class Ctl:
     def __init__(self, cmd_prefixes=None):
         self.cmd_prefixes = cmd_prefixes or []
         self.parser = optparse.OptionParser(
diff --git a/wcs/qommon/emails.py b/wcs/qommon/emails.py
index c612c3be8..bd08e2d43 100644
--- a/wcs/qommon/emails.py
+++ b/wcs/qommon/emails.py
@@ -392,7 +392,7 @@ def create_smtp_server(emails_cfg, smtp_timeout=None):
     return s
 
 
-class EmailToSend(object):
+class EmailToSend:
     def __init__(self, msg_from, rcpts, msg, smtp_timeout):
         self.msg_from = msg_from
         self.rcpts = rcpts
diff --git a/wcs/qommon/errors.py b/wcs/qommon/errors.py
index b8b97da49..c0f351db5 100644
--- a/wcs/qommon/errors.py
+++ b/wcs/qommon/errors.py
@@ -80,7 +80,7 @@ class EmailError(Exception):
     pass
 
 
-class InternalServerError(object):
+class InternalServerError:
     def render(self):
         from . import _
 
diff --git a/wcs/qommon/form.py b/wcs/qommon/form.py
index dd54ed3cd..46971ef01 100644
--- a/wcs/qommon/form.py
+++ b/wcs/qommon/form.py
@@ -498,7 +498,7 @@ class Form(QuixoteForm):
                 widget.add_media()
 
 
-class HtmlWidget(object):
+class HtmlWidget:
     error = None
     name = None
 
@@ -996,7 +996,7 @@ class EmailWidget(StringWidget):
                         self.error = _('invalid address domain')
 
 
-class OptGroup(object):
+class OptGroup:
     def __init__(self, title):
         self.title = title
 
diff --git a/wcs/qommon/ident/base.py b/wcs/qommon/ident/base.py
index 980ea79c9..e51314028 100644
--- a/wcs/qommon/ident/base.py
+++ b/wcs/qommon/ident/base.py
@@ -15,7 +15,7 @@
 # along with this program; if not, see <http://www.gnu.org/licenses/>.
 
 
-class AuthMethod(object):
+class AuthMethod:
     method_admin_widget = None
 
     def is_interactive(self):
diff --git a/wcs/qommon/ods.py b/wcs/qommon/ods.py
index b4315bc38..64fb234c8 100644
--- a/wcs/qommon/ods.py
+++ b/wcs/qommon/ods.py
@@ -81,7 +81,7 @@ def get_as_string_number(value):
     return str(value)
 
 
-class Workbook(object):
+class Workbook:
     def __init__(self, encoding='utf-8'):
         self.sheets = []
         self.encoding = encoding
@@ -178,7 +178,7 @@ class Workbook(object):
         z.close()
 
 
-class WorkSheet(object):
+class WorkSheet:
     def __init__(self, workbook, name):
         self.cells = {}
         self.name = name
@@ -204,7 +204,7 @@ class WorkSheet(object):
         return root
 
 
-class WorkCell(object):
+class WorkCell:
     def __init__(self, worksheet, value, formdata=None, data_field=None, native_value=None):
         self.worksheet = worksheet
         if value is None:
diff --git a/wcs/qommon/publisher.py b/wcs/qommon/publisher.py
index 878abcc5e..0c6362f85 100644
--- a/wcs/qommon/publisher.py
+++ b/wcs/qommon/publisher.py
@@ -72,7 +72,7 @@ class ImmediateRedirectException(Exception):
         self.location = location
 
 
-class QommonPublisher(Publisher, object):
+class QommonPublisher(Publisher):
     APP_NAME = None
     APP_DIR = None
     DATA_DIR = None
@@ -438,7 +438,7 @@ class QommonPublisher(Publisher, object):
             self._app_logger = self.get_app_logger(force=True)
         else:
 
-            class NullLogger(object):
+            class NullLogger:
                 def error(self, *args):
                     pass
 
diff --git a/wcs/qommon/saml2utils.py b/wcs/qommon/saml2utils.py
index 5f3c3486b..9eafd5c3b 100644
--- a/wcs/qommon/saml2utils.py
+++ b/wcs/qommon/saml2utils.py
@@ -29,7 +29,7 @@ def bool2xs(boolean):
     raise TypeError()
 
 
-class Metadata(object):
+class Metadata:
     __endpoints = {'slo': 'singleLogout', 'ac': 'assertionConsumer'}
 
     def __init__(self, publisher, provider_id, config):
diff --git a/wcs/qommon/sessions.py b/wcs/qommon/sessions.py
index 22016bb59..17ae0b03c 100644
--- a/wcs/qommon/sessions.py
+++ b/wcs/qommon/sessions.py
@@ -47,7 +47,7 @@ class QommonSession(QuixoteSession):
         self.__remote_address = env.get('X_FORWARDED_FOR', env.get('REMOTE_ADDR'))
 
 
-class CaptchaSession(object):
+class CaptchaSession:
     MAX_CAPTCHA_TOKENS = 8
     _captcha_tokens = None
     won_captcha = False
diff --git a/wcs/qommon/sms.py b/wcs/qommon/sms.py
index d70e592a0..94f45ed54 100644
--- a/wcs/qommon/sms.py
+++ b/wcs/qommon/sms.py
@@ -20,7 +20,7 @@ from . import get_cfg
 from . import get_logger
 
 
-class PasserelleSMS(object):
+class PasserelleSMS:
     TIMEOUT = 10
 
     def __init__(self):
@@ -40,7 +40,7 @@ class PasserelleSMS(object):
         get_logger().debug('sms %r sent using passerelle to %r, result: %r', text, destinations, data)
 
 
-class SMS(object):
+class SMS:
     @classmethod
     def get_sms_class(cls):
         sms_cfg = get_cfg('sms', {})
diff --git a/wcs/qommon/storage.py b/wcs/qommon/storage.py
index ed5d09a03..12c1f0a21 100644
--- a/wcs/qommon/storage.py
+++ b/wcs/qommon/storage.py
@@ -139,7 +139,7 @@ def pickle_2to3_conversion(obj):
     obj.__dict__ = deep_bytes2str(obj.__dict__)  # inplace
 
 
-class Criteria(object):
+class Criteria:
     def __init__(self, attribute, value):
         self.attribute = attribute
         self.value = value
@@ -296,7 +296,7 @@ class StorageIndexException(Exception):
     pass
 
 
-class StorableObject(object):
+class StorableObject:
     _indexes = None
     _hashed_indexes = None
     _filename = None  # None, unless must be saved to a specific location
diff --git a/wcs/qommon/substitution.py b/wcs/qommon/substitution.py
index 47f348ddd..2ad872ca8 100644
--- a/wcs/qommon/substitution.py
+++ b/wcs/qommon/substitution.py
@@ -31,7 +31,7 @@ def invalidate_substitution_cache(func):
     return f
 
 
-class Substitutions(object):
+class Substitutions:
     substitutions_dict = {}
     dynamic_sources = []
     sources = None
diff --git a/wcs/qommon/template.py b/wcs/qommon/template.py
index 3015805ff..0208634ed 100644
--- a/wcs/qommon/template.py
+++ b/wcs/qommon/template.py
@@ -426,7 +426,7 @@ def render(template_name, context):
     return htmltext(force_str(result))
 
 
-class QommonTemplateResponse(object):
+class QommonTemplateResponse:
     def __init__(self, templates, context):
         self.templates = templates
         self.context = context
@@ -477,7 +477,7 @@ def ezt_raises(exception, on_parse=False):
     raise TemplateError(message % ' '.join(parts))
 
 
-class Template(object):
+class Template:
     def __init__(self, value, raises=False, ezt_format=ezt.FORMAT_RAW, ezt_only=False, autoescape=True):
         '''Guess kind of template (Django or ezt), and parse it'''
         self.value = value
diff --git a/wcs/qommon/upload_storage.py b/wcs/qommon/upload_storage.py
index 1777a5b70..05b09e06d 100644
--- a/wcs/qommon/upload_storage.py
+++ b/wcs/qommon/upload_storage.py
@@ -103,7 +103,7 @@ class UploadStorageError(Exception):
     pass
 
 
-class UploadStorage(object):
+class UploadStorage:
     def save_tempfile(self, upload):
         upload.__class__ = PicklableUpload
         dirname = os.path.join(get_publisher().app_dir, 'tempfiles')
@@ -158,7 +158,7 @@ class UploadStorage(object):
         raise AssertionError('no get_redirect_url on UploadStorage object')
 
 
-class RemoteOpaqueUploadStorage(object):
+class RemoteOpaqueUploadStorage:
     def __init__(self, ws, frontoffice_redirect='true', backoffice_redirect='true', **kwargs):
         self.ws = ws
         self.frontoffice_redirect = bool(frontoffice_redirect == 'true')
diff --git a/wcs/qommon/vendor/locket.py b/wcs/qommon/vendor/locket.py
index 1294f0fc4..9d5aac452 100644
--- a/wcs/qommon/vendor/locket.py
+++ b/wcs/qommon/vendor/locket.py
@@ -101,7 +101,7 @@ def _acquire_non_blocking(acquire, timeout, retry_period, path):
             time.sleep(retry_period)
 
 
-class _LockSet(object):
+class _LockSet:
     def __init__(self, locks):
         self._locks = locks
 
@@ -130,7 +130,7 @@ class _LockSet(object):
         self.release()
 
 
-class _ThreadLock(object):
+class _ThreadLock:
     def __init__(self, path, timeout=None, retry_period=None):
         self._path = path
         self._timeout = timeout
@@ -152,7 +152,7 @@ class _ThreadLock(object):
         self._lock.release()
 
 
-class _LockFile(object):
+class _LockFile:
     def __init__(self, path, timeout=None, retry_period=None):
         self._path = path
         self._timeout = timeout
diff --git a/wcs/scripts.py b/wcs/scripts.py
index 827c87896..2473809f1 100644
--- a/wcs/scripts.py
+++ b/wcs/scripts.py
@@ -20,7 +20,7 @@ import os
 from quixote import get_publisher
 
 
-class Script(object):
+class Script:
     ezt_call_mode = 'simple'
 
     def __init__(self, script_name):
@@ -56,7 +56,7 @@ class Script(object):
         return data.get('result')
 
 
-class ScriptsSubstitutionProxy(object):
+class ScriptsSubstitutionProxy:
     def __getattr__(self, attr):
         try:
             return Script(attr)
diff --git a/wcs/sql.py b/wcs/sql.py
index 26352bf28..48a494618 100644
--- a/wcs/sql.py
+++ b/wcs/sql.py
@@ -1374,7 +1374,7 @@ def do_global_views(conn, cur):
         )
 
 
-class SqlMixin(object):
+class SqlMixin:
     _table_name = None
     _numerical_id = True
     _table_select_skipped_fields = []
@@ -3024,7 +3024,7 @@ class LoggedError(SqlMixin, wcs.logged_errors.LoggedError):
         cur.close()
 
 
-class classproperty(object):
+class classproperty:
     def __init__(self, f):
         self.f = f
 
diff --git a/wcs/variables.py b/wcs/variables.py
index 8c52e97b9..5fa07a7b3 100644
--- a/wcs/variables.py
+++ b/wcs/variables.py
@@ -36,7 +36,7 @@ from .qommon.substitution import CompatibilityNamesDict
 from .qommon.templatetags.qommon import parse_datetime
 
 
-class LazyFormDefObjectsManager(object):
+class LazyFormDefObjectsManager:
     def __init__(
         self, formdef, formdata=None, geoloc_center_formdata=None, criterias=None, order_by=None, limit=None
     ):
@@ -255,7 +255,7 @@ class LazyFormDefObjectsManager(object):
         return any(self)
 
 
-class LazyList(object):
+class LazyList:
     def __init__(self, lazy_manager, key):
         self._lazy_manager = lazy_manager
         self._key = key
@@ -304,7 +304,7 @@ class LazyList(object):
         return list(self) == list(other)
 
 
-class LazyFormDef(object):
+class LazyFormDef:
     def __init__(self, formdef):
         self._formdef = formdef
 
@@ -613,7 +613,7 @@ class LazyFormData(LazyFormDef):
             raise
 
 
-class LazyFormDataVar(object):
+class LazyFormDataVar:
     def __init__(self, fields, data, formdata=None):
         self._fields = fields
         self._data = data or {}
@@ -701,7 +701,7 @@ class LazyFormDataVar(object):
             raise AttributeError(attr)
 
 
-class LazyFieldVar(object):
+class LazyFieldVar:
     def __init__(self, data, field, formdata=None, **kwargs):
         self._data = data
         self._field = field
@@ -876,7 +876,7 @@ class LazyFieldVarStructured(LazyFieldVar):
         raise KeyError(key)
 
 
-class DateOperatorsMixin(object):
+class DateOperatorsMixin:
     def __eq__(self, other):
         if hasattr(other, 'timetuple'):
             other = other.timetuple()
@@ -1077,7 +1077,7 @@ class LazyFieldVarBlock(LazyFieldVar):
         return [data.get(field.id) for data in self._formdata.data.get(self._field.id)['data']]
 
 
-class LazyUser(object):
+class LazyUser:
     def __init__(self, user):
         self._user = user
 
@@ -1125,7 +1125,7 @@ class LazyUser(object):
             return getattr(self._user, attr)
 
 
-class LazyRequest(object):
+class LazyRequest:
     def __init__(self, request):
         self._request = request
 
diff --git a/wcs/wf/create_formdata.py b/wcs/wf/create_formdata.py
index b60c4a3a5..668a9da7d 100644
--- a/wcs/wf/create_formdata.py
+++ b/wcs/wf/create_formdata.py
@@ -39,7 +39,7 @@ from wcs.workflows import WorkflowStatusItem
 from wcs.workflows import register_item_class
 
 
-class Mapping(object):
+class Mapping:
     field_id = None
     expression = None
 
@@ -131,7 +131,7 @@ class MappingsWidget(WidgetListAsTable):
             self.value.sort(key=lambda mapping: self.ranks.get(str(mapping.field_id), 9999))
 
 
-class LinkedFormdataEvolutionPart(object):
+class LinkedFormdataEvolutionPart:
     formdef_class = FormDef
     attach_to_history = False
 
@@ -187,7 +187,7 @@ class LinkedFormdataEvolutionPart(object):
             return ''
 
 
-class LazyFormDataLinks(object):
+class LazyFormDataLinks:
     def __init__(self, formdata):
         self._formdata = formdata
 
diff --git a/wcs/workflows.py b/wcs/workflows.py
index cdead823e..f2fe2ff58 100644
--- a/wcs/workflows.py
+++ b/wcs/workflows.py
@@ -133,7 +133,7 @@ class AbortActionException(Exception):
     pass
 
 
-class AttachmentSubstitutionProxy(object):
+class AttachmentSubstitutionProxy:
     def __init__(self, formdata, attachment_evolution_part):
         self.formdata = formdata
         self.attachment_evolution_part = attachment_evolution_part
@@ -165,7 +165,7 @@ class AttachmentSubstitutionProxy(object):
         )
 
 
-class NamedAttachmentsSubstitutionProxy(object):
+class NamedAttachmentsSubstitutionProxy:
     def __init__(self, formdata, parts):
         self.formdata = formdata
         self.parts = parts[:]
@@ -181,7 +181,7 @@ class NamedAttachmentsSubstitutionProxy(object):
         return AttachmentSubstitutionProxy(self.formdata, self.parts[i])
 
 
-class AttachmentsSubstitutionProxy(object):
+class AttachmentsSubstitutionProxy:
     def __init__(self, formdata):
         self.formdata = formdata
 
@@ -940,7 +940,7 @@ class Workflow(StorableObject):
         return list(CardDef.select(lambda x: x.workflow_id == self.id, **kwargs))
 
 
-class XmlSerialisable(object):
+class XmlSerialisable:
     node_name = None
     key = None
 
@@ -1132,7 +1132,7 @@ class WorkflowGlobalActionManualTrigger(WorkflowGlobalActionTrigger):
         self._roles_init_with_xml('roles', elem, charset, include_id=include_id, snapshot=snapshot)
 
 
-class WorkflowGlobalActionTimeoutTriggerMarker(object):
+class WorkflowGlobalActionTimeoutTriggerMarker:
     def __init__(self, timeout_id):
         self.timeout_id = timeout_id
 
@@ -1469,7 +1469,7 @@ class WorkflowGlobalActionWebserviceTrigger(WorkflowGlobalActionManualTrigger):
         return [('hooks', WorkflowGlobalActionWebserviceHooksDirectory(formdata))]
 
 
-class WorkflowGlobalAction(object):
+class WorkflowGlobalAction:
     id = None
     name = None
     items = None
@@ -1549,7 +1549,7 @@ class WorkflowGlobalAction(object):
             trigger_o.init_with_xml(trigger, charset, include_id=include_id, snapshot=snapshot)
 
 
-class WorkflowCriticalityLevel(object):
+class WorkflowCriticalityLevel:
     id = None
     name = None
     colour = None
@@ -1574,7 +1574,7 @@ class WorkflowCriticalityLevel(object):
             self.colour = xml_node_text(elem.find('colour'))
 
 
-class WorkflowStatus(object):
+class WorkflowStatus:
     id = None
     name = None
     items = None
diff --git a/wcs/wscalls.py b/wcs/wscalls.py
index 1132bf1f6..96447dfea 100644
--- a/wcs/wscalls.py
+++ b/wcs/wscalls.py
@@ -277,7 +277,7 @@ class NamedWsCall(XmlStorableObject):
         return json_loads(data)
 
 
-class WsCallsSubstitutionProxy(object):
+class WsCallsSubstitutionProxy:
     def __getattr__(self, attr):
         try:
             return NamedWsCall.get(attr).call()