VBhojawala opened a new pull request #12159:
URL: https://github.com/apache/airflow/pull/12159
New Feature of @taskgroup decorator implementation
closes:#11870
Added a decorator function which can be used to create TaskGroup for python
function.
I have tested it with following example :
```
def generate_value():
"""Dummy function"""
return "Bring me a shrubbery!"
@task()
def print_value(value):
"""Dummy function"""
ctx = get_current_context()
log.info("Print Value: %s (at %s)", value, ctx['ts'])
return value
@task()
def log_value(value):
"""Dummy function"""
ctx = get_current_context()
log.info("Log Value: %s (at %s)", value, ctx['ts'])
@taskgroup(group_id='t3_task_1')
def t3_task_1(value):
op1 = print_value(value)
log_value(op1)
with DAG(
dag_id='T3_task_group_deco',
default_args={'owner': 'airflow'},
start_date=days_ago(2),
schedule_interval=None,
tags=['example'],
) as dag:
task1 = PythonOperator(
task_id='generate_value',
python_callable=generate_value,
)
t3_task_1(task1.output)
```
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