amoghrajesh opened a new pull request, #54169:
URL: https://github.com/apache/airflow/pull/54169
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Users could be using `check_cycle` in their dags / tests which would start
to fail without compat. This is not a clean way of achieving compat but it's
the only one possible at the moment. Once we decide to remove it, we should
nuke off this file.
Working example:
```
root@6c2cb22000eb:/opt/airflow# python
Python 3.10.18 (tags/v3.10.18:88663ef, Jul 22 2025, 04:10:51) [GCC 12.2.0]
on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from airflow.utils.dag_cycle_tester import check_cycle
<stdin>:1 DeprecationWarning: `airflow.utils.dag_cycle_tester` module is
deprecated and will be removed in Airflow 3.2. Please use `dag.check_cycle()`
method instead.
>>> from airflow.sdk import DAG
>>> dag = DAG(
... dag_id="abcd",
... schedule=None,
... catchup=False,
... tags=["demo"],
... )
/opt/airflow/task-sdk/src/airflow/sdk/definitions/taskgroup.py:36
DeprecationWarning: airflow.exceptions.AirflowDagCycleException is deprecated.
Use airflow.sdk.exceptions.AirflowDagCycleException instead.
>>> check_cycle(dag)
>>> check_cycle(dag)
KeyboardInterrupt
>>> check_cycle(dag) is None
True
```
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