test.py

from airflow.operators.python_operator import PythonOperator
from airflow import DAG
from datetime import datetime, timedelta


default_args = {
    'owner': 'airflow',
    'depends_on_past': False,
    'start_date': datetime(2019, 1, 1),
    'email': ['support@tg.com'],
    'email_on_failure': True,
    'email_on_retry': False,
    'retries': 1,
    'retry_delay': timedelta(minutes=5),
    # 'queue': 'bash_queue',
    # 'pool': 'backfill',
    # 'priority_weight': 10,
    # 'end_date': datetime(2016, 1, 1),
}

dag = DAG('test', default_args=default_args, schedule_interval=timedelta(days=1))

def test(ds, **kwargs):
    print("TESTING")
    return 'Notify job complete'


PythonOperator(
    task_id='test',
    provide_context=True,
    python_callable=test,
    dag=dag,
)