raphaelauv opened a new issue, #39639:
URL: https://github.com/apache/airflow/issues/39639

   ### Apache Airflow version
   
   2.9.1
   
   ### If "Other Airflow 2 version" selected, which one?
   
   _No response_
   
   ### What happened?
   
   ```python
       PythonOperator(
           task_id="test_2",
           python_callable=a,
           pool="pool_1",
           pool_slots="a",
       )
   ```
   
   airflow fail with 
   
   ![Screenshot from 2024-05-15 
14-34-18](https://github.com/apache/airflow/assets/10202690/1c3f581b-1d8e-433f-8024-ae9bebdb9566)
   
   but 
   
   with
   
   ```
       PythonOperator.partial(
           task_id="test",
           python_callable=a,
           pool="pool_1",
           pool_slots="a",
       ).expand(show_return_value_in_logs=[True])
   ```
   
   airflow do not fail to parse the file and fail at trigger of the pipeline
   
   ### What you think should happen instead?
   
   airflow should detect incorrect args of partial
   
   ### How to reproduce
   
   ```
   from airflow.operators.python import PythonOperator
   from pendulum import today
   from airflow import DAG
   
   with DAG(
           dag_id="test_partial",
           schedule_interval=None,
           start_date=today("UTC").add(days=-1)):
       def a():
           return
   
       PythonOperator.partial(
           task_id="test",
           python_callable=a,
           pool="pool_1",
           pool_slots="a",
       ).expand(show_return_value_in_logs=[True])
   ```
   
   ### Operating System
   
   ----
   
   ### Versions of Apache Airflow Providers
   
   _No response_
   
   ### Deployment
   
   Official Apache Airflow Helm Chart
   
   ### Deployment details
   
   _No response_
   
   ### Anything else?
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [ ] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of 
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
   


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