nailo2c opened a new pull request, #65170: URL: https://github.com/apache/airflow/pull/65170
* closes: #35408 Support the `log_output` parameter for PapermillOperator so that it can show logs from the notebook in the Airflow UI. + Before <img width="1920" height="557" alt="35408_before" src="https://github.com/user-attachments/assets/c990967d-1fd8-4a3e-a432-3019f77fa1a8"; /> + After <img width="1918" height="703" alt="35408_after" src="https://github.com/user-attachments/assets/644f299c-4c56-48fd-b2bf-c875b9a71a6c"; /> ### The Dag and Notebook code I used + Dag ```python from datetime import datetime from airflow import DAG from airflow.providers.papermill.operators.papermill import PapermillOperator NOTEBOOK_PATH = "/files/dags/test_papermill_log.ipynb" OUTPUT_PATH = "/tmp/test_papermill_log_output.ipynb" with DAG( dag_id="test_papermill_log", start_date=datetime(2026, 1, 1), schedule=None, catchup=False, ) as dag: run_notebook = PapermillOperator( task_id="run_notebook", input_nb=NOTEBOOK_PATH, output_nb=OUTPUT_PATH, parameters={"msg": "hello_from_airflow"}, log_output=True, ) ``` + Notebook ```python import time for i in range(5): print(f"[Step {i+1}/5] msg={msg}") time.sleep(1) print("Notebook execution complete.") ``` --- ##### Was generative AI tooling used to co-author this PR? <!-- If generative AI tooling has been used in the process of authoring this PR, please change below checkbox to `[X]` followed by the name of the tool, uncomment the "Generated-by". --> - [x] Yes (please specify the tool below) Generated-by: [Claude 4.6] following [the guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#gen-ai-assisted-contributions) --- * Read the **[Pull Request Guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#pull-request-guidelines)** for more information. Note: commit author/co-author name and email in commits become permanently public when merged. * For fundamental code changes, an Airflow Improvement Proposal ([AIP](https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+Improvement+Proposals)) is needed. * When adding dependency, check compliance with the [ASF 3rd Party License Policy](https://www.apache.org/legal/resolved.html#category-x). * For significant user-facing changes create newsfragment: `{pr_number}.significant.rst`, in [airflow-core/newsfragments](https://github.com/apache/airflow/tree/main/airflow-core/newsfragments). You can add this file in a follow-up commit after the PR is created so you know the PR number. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
