Apache Airflow·Apache Airflow essentials

DAGs

A DAG describes tasks and their dependencies.

Intermediate 10 min read Lesson 1 of 150 Challenge included
What you will be able to do
  • Define with dag context.
  • Tasks are operators.
  • Dependencies use >>.

In plain English

A DAG describes tasks and their dependencies.

  • Define with dag context.
  • Tasks are operators.
  • Dependencies use >>.
dag.pyPython
from airflow import DAG
from airflow.operators.bash import BashOperator
from datetime import datetime

with DAG('lessons', start_date=datetime(2026, 1, 1), schedule='@daily') as dag:
    extract = BashOperator(task_id='extract', bash_command='echo extract')
Your turn

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Lesson 1 of 150 · 0% of course