Prune module exports

django/tasks/__init__.py

@@ -2,13 +2,11 @@ from django.utils.connection import BaseConnectionHandler, ConnectionProxy
 from django.utils.module_loading import import_string
 
 from . import checks, signal_handlers  # noqa
-from .backends.base import BaseTaskBackend
 from .exceptions import InvalidTaskBackendError
 from .task import (
     DEFAULT_QUEUE_NAME,
     DEFAULT_TASK_BACKEND_ALIAS,
     ResultStatus,
-    Task,
     TaskResult,
     task,
 )
@@ -19,7 +17,6 @@ __all__ = [
     "DEFAULT_QUEUE_NAME",
     "task",
     "ResultStatus",
-    "Task",
     "TaskResult",
 ]
 
@@ -48,6 +45,4 @@ class TasksHandler(BaseConnectionHandler):
 
 tasks = TasksHandler()
 
-default_task_backend: BaseTaskBackend = ConnectionProxy(
+default_task_backend = ConnectionProxy(tasks, DEFAULT_TASK_BACKEND_ALIAS)
-    tasks, DEFAULT_TASK_BACKEND_ALIAS
-)

django/tasks/backends/base.py

@@ -5,6 +5,7 @@ from asgiref.sync import sync_to_async
 
 from django.core.checks import messages
 from django.db import connections
+from django.tasks import DEFAULT_QUEUE_NAME
 from django.tasks.exceptions import InvalidTaskError
 from django.tasks.task import MAX_PRIORITY, MIN_PRIORITY, Task
 from django.tasks.utils import is_global_function
@@ -25,8 +26,6 @@ class BaseTaskBackend(metaclass=ABCMeta):
     """Can results be retrieved after the fact (from **any** thread / process)"""
 
     def __init__(self, options):
-        from django.tasks import DEFAULT_QUEUE_NAME
-
         self.alias = options["ALIAS"]
         self.queues = set(options.get("QUEUES", [DEFAULT_QUEUE_NAME]))
         self.enqueue_on_commit = bool(options.get("ENQUEUE_ON_COMMIT", True))

tests/tasks/test_dummy_backend.py

@@ -1,9 +1,10 @@
 from typing import cast
 
 from django.db import transaction
-from django.tasks import ResultStatus, Task, default_task_backend, tasks
+from django.tasks import ResultStatus, default_task_backend, tasks
 from django.tasks.backends.dummy import DummyBackend
 from django.tasks.exceptions import ResultDoesNotExist
+from django.tasks.task import Task
 from django.test import SimpleTestCase, TransactionTestCase, override_settings
 
 from . import tasks as test_tasks

tests/tasks/test_immediate_backend.py

@@ -1,9 +1,10 @@
 from typing import cast
 
 from django.db import transaction
-from django.tasks import ResultStatus, Task, default_task_backend, tasks
+from django.tasks import ResultStatus, default_task_backend, tasks
 from django.tasks.backends.immediate import ImmediateBackend
 from django.tasks.exceptions import InvalidTaskError
+from django.tasks.task import Task
 from django.test import SimpleTestCase, TransactionTestCase, override_settings
 from django.utils import timezone
 

tests/tasks/test_tasks.py

@@ -4,7 +4,6 @@ from datetime import datetime, timedelta
 from django.tasks import (
     DEFAULT_QUEUE_NAME,
     ResultStatus,
-    Task,
     default_task_backend,
     task,
     tasks,
@@ -16,7 +15,7 @@ from django.tasks.exceptions import (
     InvalidTaskError,
     ResultDoesNotExist,
 )
-from django.tasks.task import MAX_PRIORITY, MIN_PRIORITY
+from django.tasks.task import MAX_PRIORITY, MIN_PRIORITY, Task
 from django.test import SimpleTestCase, override_settings
 from django.utils import timezone
 from django.utils.module_loading import import_string