Refs #23919 -- Stopped inheriting from object to define new style classes.

django/db/migrations/autodetector.py

@@ -16,7 +16,7 @@ from django.db.migrations.utils import (
 from .topological_sort import stable_topological_sort
 
 
-class MigrationAutodetector(object):
+class MigrationAutodetector:
     """
     Takes a pair of ProjectStates, and compares them to see what the
     first would need doing to make it match the second (the second

django/db/migrations/executor.py

@@ -7,7 +7,7 @@ from .recorder import MigrationRecorder
 from .state import ProjectState
 
 
-class MigrationExecutor(object):
+class MigrationExecutor:
     """
     End-to-end migration execution - loads migrations, and runs them
     up or down to a specified set of targets.

django/db/migrations/graph.py

@@ -18,7 +18,7 @@ RECURSION_DEPTH_WARNING = (
 
 
 @total_ordering
-class Node(object):
+class Node:
     """
     A single node in the migration graph. Contains direct links to adjacent
     nodes in either direction.
@@ -100,7 +100,7 @@ class DummyNode(Node):
         raise NodeNotFoundError(self.error_message, self.key, origin=self.origin)
 
 
-class MigrationGraph(object):
+class MigrationGraph:
     """
     Represents the digraph of all migrations in a project.
 

django/db/migrations/loader.py

@@ -16,7 +16,7 @@ from .exceptions import (
 MIGRATIONS_MODULE_NAME = 'migrations'
 
 
-class MigrationLoader(object):
+class MigrationLoader:
     """
     Loads migration files from disk, and their status from the database.
 

django/db/migrations/migration.py

@@ -3,7 +3,7 @@ from django.db.transaction import atomic
 from .exceptions import IrreversibleError
 
 
-class Migration(object):
+class Migration:
     """
     The base class for all migrations.
 

django/db/migrations/operations/base.py

@@ -1,7 +1,7 @@
 from django.db import router
 
 
-class Operation(object):
+class Operation:
     """
     Base class for migration operations.
 

django/db/migrations/optimizer.py

@@ -1,4 +1,4 @@
-class MigrationOptimizer(object):
+class MigrationOptimizer:
     """
     Powers the optimization process, where you provide a list of Operations
     and you are returned a list of equal or shorter length - operations

django/db/migrations/questioner.py

@@ -9,7 +9,7 @@ from django.utils import datetime_safe, timezone
 from .loader import MigrationLoader
 
 
-class MigrationQuestioner(object):
+class MigrationQuestioner:
     """
     Gives the autodetector responses to questions it might have.
     This base class has a built-in noninteractive mode, but the

django/db/migrations/recorder.py

@@ -6,7 +6,7 @@ from django.utils.timezone import now
 from .exceptions import MigrationSchemaMissing
 
 
-class MigrationRecorder(object):
+class MigrationRecorder:
     """
     Deals with storing migration records in the database.
 

django/db/migrations/serializer.py

@@ -24,7 +24,7 @@ except ImportError:
     enum = None
 
 
-class BaseSerializer(object):
+class BaseSerializer:
     def __init__(self, value):
         self.value = value
 

django/db/migrations/state.py

@@ -80,7 +80,7 @@ def get_related_models_recursive(model):
     return seen - {(model._meta.app_label, model._meta.model_name)}
 
 
-class ProjectState(object):
+class ProjectState:
     """
     Represents the entire project's overall state.
     This is the item that is passed around - we do it here rather than at the
@@ -356,7 +356,7 @@ class StateApps(Apps):
             pass
 
 
-class ModelState(object):
+class ModelState:
     """
     Represents a Django Model. We don't use the actual Model class
     as it's not designed to have its options changed - instead, we

django/db/migrations/utils.py

@@ -4,7 +4,7 @@ import re
 COMPILED_REGEX_TYPE = type(re.compile(''))
 
 
-class RegexObject(object):
+class RegexObject:
     def __init__(self, obj):
         self.pattern = obj.pattern
         self.flags = obj.flags

django/db/migrations/writer.py

@@ -34,7 +34,7 @@ class SettingsReference(str):
         self.setting_name = setting_name
 
 
-class OperationWriter(object):
+class OperationWriter:
     def __init__(self, operation, indentation=2):
         self.operation = operation
         self.buff = []
@@ -134,7 +134,7 @@ class OperationWriter(object):
         return '\n'.join(self.buff)
 
 
-class MigrationWriter(object):
+class MigrationWriter:
     """
     Takes a Migration instance and is able to produce the contents
     of the migration file from it.