rustikk opened a new issue #21768:
URL: https://github.com/apache/airflow/issues/21768
### Apache Airflow version
2.2.4 (latest released)
### What happened
When triggering this dag below it runs when it should fail. A set is being
passed to default_args instead of what should be a dictionary yet the dag still
succeeds.
### What you expected to happen
I expected the dag to fail as the default_args parameter should only be a
dictionary.
### How to reproduce
```
from airflow.models import DAG
from airflow.operators.python import PythonVirtualenvOperator, PythonOperator
from airflow.utils.dates import days_ago
def callable1():
pass
with DAG(
dag_id="virtualenv_python_operator",
default_args={"owner: airflow"},
schedule_interval=None,
start_date=days_ago(2),
tags=["core"],
) as dag:
task = PythonOperator(
task_id="check_errors",
python_callable=callable1,
)
```
### Operating System
Docker (debian:buster)
### Versions of Apache Airflow Providers
_No response_
### Deployment
Astronomer
### Deployment details
Astro CLI with images:
- quay.io/astronomer/ap-airflow-dev:2.2.4-1-onbuild
- quay.io/astronomer/ap-airflow-dev:2.2.3-2
- quay.io/astronomer/ap-airflow-dev:2.2.0-5-buster-onbuild
### Anything else
Bug happens every time.
### Are you willing to submit PR?
- [X] 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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