Suppress SubDagOperator examples warnings

airflow/example_dags/example_subdag_operator.py

@@ -19,44 +19,52 @@
 
 from __future__ import annotations
 
-# [START example_subdag_operator]
-import datetime
-
-from airflow.example_dags.subdags.subdag import subdag
-from airflow.models.dag import DAG
-from airflow.operators.empty import EmptyOperator
-from airflow.operators.subdag import SubDagOperator
-
-DAG_NAME = "example_subdag_operator"
-
-with DAG(
-    dag_id=DAG_NAME,
-    default_args={"retries": 2},
-    start_date=datetime.datetime(2022, 1, 1),
-    schedule="@once",
-    tags=["example"],
-) as dag:
-    start = EmptyOperator(
-        task_id="start",
-    )
+import warnings
 
-    section_1 = SubDagOperator(
-        task_id="section-1",
-        subdag=subdag(DAG_NAME, "section-1", dag.default_args),
+with warnings.catch_warnings():
+    warnings.filterwarnings(
+        "ignore",
+        message=r"This class is deprecated\. Please use `airflow\.utils\.task_group\.TaskGroup`\.",
     )
 
-    some_other_task = EmptyOperator(
-        task_id="some-other-task",
-    )
+    # [START example_subdag_operator]
+    import datetime
 
-    section_2 = SubDagOperator(
-        task_id="section-2",
-        subdag=subdag(DAG_NAME, "section-2", dag.default_args),
-    )
+    from airflow.example_dags.subdags.subdag import subdag
+    from airflow.models.dag import DAG
+    from airflow.operators.empty import EmptyOperator
+    from airflow.operators.subdag import SubDagOperator
 
-    end = EmptyOperator(
-        task_id="end",
-    )
+    DAG_NAME = "example_subdag_operator"
+
+    with DAG(
+        dag_id=DAG_NAME,
+        default_args={"retries": 2},
+        start_date=datetime.datetime(2022, 1, 1),
+        schedule="@once",
+        tags=["example"],
+    ) as dag:
+        start = EmptyOperator(
+            task_id="start",
+        )
+
+        section_1 = SubDagOperator(
+            task_id="section-1",
+            subdag=subdag(DAG_NAME, "section-1", dag.default_args),
+        )
+
+        some_other_task = EmptyOperator(
+            task_id="some-other-task",
+        )
+
+        section_2 = SubDagOperator(
+            task_id="section-2",
+            subdag=subdag(DAG_NAME, "section-2", dag.default_args),
+        )
+
+        end = EmptyOperator(
+            task_id="end",
+        )
 
-    start >> section_1 >> some_other_task >> section_2 >> end
-# [END example_subdag_operator]
+        start >> section_1 >> some_other_task >> section_2 >> end
+    # [END example_subdag_operator]

docs/apache-airflow/core-concepts/dags.rst

@@ -711,6 +711,7 @@ This SubDAG can then be referenced in your main DAG file:
 
 .. exampleinclude:: /../../airflow/example_dags/example_subdag_operator.py
     :language: python
+    :dedent: 4
     :start-after: [START example_subdag_operator]
     :end-before: [END example_subdag_operator]
 

tests/api_connexion/conftest.py

@@ -16,11 +16,8 @@
 # under the License.
 from __future__ import annotations
 
-import warnings
-
 import pytest
 
-from airflow.exceptions import RemovedInAirflow3Warning
 from airflow.www import app
 from tests.test_utils.config import conf_vars
 from tests.test_utils.decorators import dont_initialize_flask_app_submodules
@@ -59,15 +56,7 @@ def session():
 def dagbag():
     from airflow.models import DagBag
 
-    with warnings.catch_warnings():
-        # This explicitly shows off SubDagOperator, no point to warn about that.
-        warnings.filterwarnings(
-            "ignore",
-            category=RemovedInAirflow3Warning,
-            message=r".+Please use.+TaskGroup.+",
-            module=r".+example_subdag_operator$",
-        )
-        DagBag(include_examples=True, read_dags_from_db=False).sync_to_db()
+    DagBag(include_examples=True, read_dags_from_db=False).sync_to_db()
     return DagBag(include_examples=True, read_dags_from_db=True)
 
 

tests/api_experimental/common/test_mark_tasks.py

@@ -18,7 +18,6 @@
 from __future__ import annotations
 
 import datetime
-import warnings
 from typing import Callable
 
 import pytest
@@ -34,7 +33,6 @@
     set_dag_run_state_to_success,
     set_state,
 )
-from airflow.exceptions import RemovedInAirflow3Warning
 from airflow.models import DagRun
 from airflow.utils import timezone
 from airflow.utils.session import create_session, provide_session
@@ -52,13 +50,9 @@
 def dagbag():
     from airflow.models.dagbag import DagBag
 
-    with warnings.catch_warnings():
-        # Some dags use deprecated operators, e.g SubDagOperator
-        # if it is not imported, then it might have side effects for the other tests
-        warnings.simplefilter("ignore", category=RemovedInAirflow3Warning)
-        # Ensure the DAGs we are looking at from the DB are up-to-date
-        non_serialized_dagbag = DagBag(read_dags_from_db=False, include_examples=True)
-        non_serialized_dagbag.sync_to_db()
+    # Ensure the DAGs we are looking at from the DB are up-to-date
+    non_serialized_dagbag = DagBag(read_dags_from_db=False, include_examples=True)
+    non_serialized_dagbag.sync_to_db()
     return DagBag(read_dags_from_db=True)
 
 
@@ -484,11 +478,7 @@ class TestMarkDAGRun:
 
     @classmethod
     def setup_class(cls):
-        with warnings.catch_warnings():
-            # Some dags use deprecated operators, e.g SubDagOperator
-            # if it is not imported, then it might have side effects for the other tests
-            warnings.simplefilter("ignore", category=RemovedInAirflow3Warning)
-            dagbag = models.DagBag(include_examples=True, read_dags_from_db=False)
+        dagbag = models.DagBag(include_examples=True, read_dags_from_db=False)
         cls.dag1 = dagbag.dags["miscellaneous_test_dag"]
         cls.dag1.sync_to_db()
         cls.dag2 = dagbag.dags["example_subdag_operator"]

tests/conftest.py

@@ -23,7 +23,6 @@
 import re
 import subprocess
 import sys
-import warnings
 from contextlib import ExitStack, suppress
 from datetime import datetime, timedelta, timezone
 from pathlib import Path
@@ -321,24 +320,12 @@ def initial_db_init():
     from flask import Flask
 
     from airflow.configuration import conf
-    from airflow.exceptions import RemovedInAirflow3Warning
     from airflow.utils import db
     from airflow.www.extensions.init_appbuilder import init_appbuilder
     from airflow.www.extensions.init_auth_manager import get_auth_manager
 
-    ignore_warnings = {
-        RemovedInAirflow3Warning: [
-            # SubDagOperator warnings
-            "This class is deprecated. Please use `airflow.utils.task_group.TaskGroup`."
-        ]
-    }
-
     db.resetdb()
-    with warnings.catch_warnings():
-        for warning_category, messages in ignore_warnings.items():
-            for message in messages:
-                warnings.filterwarnings("ignore", message=re.escape(message), category=warning_category)
-        db.bootstrap_dagbag()
+    db.bootstrap_dagbag()
     # minimal app to add roles
     flask_app = Flask(__name__)
     flask_app.config["SQLALCHEMY_DATABASE_URI"] = conf.get("database", "SQL_ALCHEMY_CONN")

tests/dags/test_clear_subdag.py

@@ -37,7 +37,11 @@ def create_subdag_opt(main_dag):
         max_active_tasks=2,
     )
     BashOperator(bash_command="echo 1", task_id="daily_job_subdag_task", dag=subdag)
-    with warnings.catch_warnings(record=True):
+    with warnings.catch_warnings():
+        warnings.filterwarnings(
+            "ignore",
+            message=r"This class is deprecated\. Please use `airflow\.utils\.task_group\.TaskGroup`\.",
+        )
         return SubDagOperator(
             task_id=subdag_name,
             subdag=subdag,

tests/dags/test_impersonation_subdag.py

@@ -45,7 +45,11 @@ def print_today():
 BashOperator(task_id="exec_bash_operator", bash_command='echo "Running within SubDag"', dag=subdag)
 
 
-with warnings.catch_warnings(record=True):
+with warnings.catch_warnings():
+    warnings.filterwarnings(
+        "ignore",
+        message=r"This class is deprecated\. Please use `airflow\.utils\.task_group\.TaskGroup`\.",
+    )
     subdag_operator = SubDagOperator(
         task_id="test_subdag_operation", subdag=subdag, mode="reschedule", poke_interval=1, dag=dag
     )

tests/dags/test_subdag.py

@@ -68,7 +68,11 @@ def subdag(parent_dag_name, child_dag_name, args):
         task_id="start",
     )
 
-    with warnings.catch_warnings(record=True):
+    with warnings.catch_warnings():
+        warnings.filterwarnings(
+            "ignore",
+            message=r"This class is deprecated\. Please use `airflow\.utils\.task_group\.TaskGroup`\.",
+        )
         section_1 = SubDagOperator(
             task_id="section-1",
             subdag=subdag(DAG_NAME, "section-1", DEFAULT_TASK_ARGS),

tests/jobs/test_backfill_job.py

@@ -21,7 +21,6 @@
 import json
 import logging
 import threading
-import warnings
 from collections import defaultdict
 from unittest import mock
 from unittest.mock import patch
@@ -36,7 +35,6 @@
     BackfillUnfinished,
     DagConcurrencyLimitReached,
     NoAvailablePoolSlot,
-    RemovedInAirflow3Warning,
     TaskConcurrencyLimitReached,
 )
 from airflow.executors.executor_constants import MOCK_EXECUTOR
@@ -77,11 +75,7 @@
 
 @pytest.fixture(scope="module")
 def dag_bag():
-    with warnings.catch_warnings():
-        # Some dags use deprecated operators, e.g SubDagOperator
-        # if it is not imported, then it might have side effects for the other tests
-        warnings.simplefilter("ignore", category=RemovedInAirflow3Warning)
-        return DagBag(include_examples=True)
+    return DagBag(include_examples=True)
 
 
 # Patch the MockExecutor into the dict of known executors in the Loader

tests/models/test_dagrun.py

@@ -18,7 +18,6 @@
 from __future__ import annotations
 
 import datetime
-import warnings
 from functools import reduce
 from typing import TYPE_CHECKING, Mapping
 from unittest import mock
@@ -30,7 +29,7 @@
 from airflow import settings
 from airflow.callbacks.callback_requests import DagCallbackRequest
 from airflow.decorators import setup, task, task_group, teardown
-from airflow.exceptions import AirflowException, RemovedInAirflow3Warning
+from airflow.exceptions import AirflowException
 from airflow.models.baseoperator import BaseOperator
 from airflow.models.dag import DAG, DagModel
 from airflow.models.dagrun import DagRun, DagRunNote
@@ -64,13 +63,7 @@
 def dagbag():
     from airflow.models.dagbag import DagBag
 
-    with warnings.catch_warnings():
-        # Some dags use deprecated operators, e.g SubDagOperator
-        # if it is not imported, then it might have side effects for the other tests
-        warnings.simplefilter("ignore", category=RemovedInAirflow3Warning)
-        # Ensure the DAGs we are looking at from the DB are up-to-date
-        dag_bag = DagBag(include_examples=True)
-    return dag_bag
+    return DagBag(include_examples=True)
 
 
 class TestDagRun:

tests/www/api/experimental/test_dag_runs_endpoint.py

@@ -18,12 +18,10 @@
 from __future__ import annotations
 
 import json
-import warnings
 
 import pytest
 
 from airflow.api.common.trigger_dag import trigger_dag
-from airflow.exceptions import RemovedInAirflow3Warning
 from airflow.models import DagBag, DagRun
 from airflow.models.serialized_dag import SerializedDagModel
 from airflow.settings import Session
@@ -38,11 +36,8 @@ def _setup_session(self):
         session.query(DagRun).delete()
         session.commit()
         session.close()
-        with warnings.catch_warnings():
-            # Some dags use deprecated operators, e.g SubDagOperator
-            # if it is not imported, then it might have side effects for the other tests
-            warnings.simplefilter("ignore", category=RemovedInAirflow3Warning)
-            dagbag = DagBag(include_examples=True)
+
+        dagbag = DagBag(include_examples=True)
         for dag in dagbag.dags.values():
             dag.sync_to_db()
             SerializedDagModel.write_dag(dag)

tests/www/views/conftest.py

@@ -17,7 +17,6 @@
 # under the License.
 from __future__ import annotations
 
-import warnings
 from contextlib import contextmanager
 from typing import Any, Generator, NamedTuple
 
@@ -26,7 +25,6 @@
 import pytest
 
 from airflow import settings
-from airflow.exceptions import RemovedInAirflow3Warning
 from airflow.models import DagBag
 from airflow.www.app import create_app
 from tests.test_utils.api_connexion_utils import delete_user
@@ -43,13 +41,9 @@ def session():
 
 @pytest.fixture(autouse=True, scope="module")
 def examples_dag_bag(session):
-    with warnings.catch_warnings():
-        # Some dags use deprecated operators, e.g SubDagOperator
-        # if it is not imported, then it might have side effects for the other tests
-        warnings.simplefilter("ignore", category=RemovedInAirflow3Warning)
-        DagBag(include_examples=True).sync_to_db()
-        dag_bag = DagBag(include_examples=True, read_dags_from_db=True)
-        session.commit()
+    DagBag(include_examples=True).sync_to_db()
+    dag_bag = DagBag(include_examples=True, read_dags_from_db=True)
+    session.commit()
     return dag_bag