2025年12月10日

摘要： dag3 = DAG( dag_id="example_branch_datetime_operator_3", start_date=pendulum.datetime(2021, 1, 1, tz="UTC"), catchup=False, tags=["example"], schedule 阅读全文

posted @ 2025-12-10 21:50 ZhangZhihuiAAA 阅读(2) 评论(0) 推荐(0)

Airflow - 'from airflow import DAG' and 'from airflow.sdk import DAG', which one is better?

摘要： Short answer: ✔ from airflow.sdk import DAG is better for Airflow 3 (and later). ✔ from airflow import DAG is the old import style for Airflow 2.x. ✅ 阅读全文

posted @ 2025-12-10 21:02 ZhangZhihuiAAA 阅读(2) 评论(0) 推荐(0)

Airflow - expand()

摘要： # # Licensed to the Apache Software Foundation (ASF) under one # or more contributor license agreements. See the NOTICE file # distributed with this w 阅读全文

posted @ 2025-12-10 16:54 ZhangZhihuiAAA 阅读(2) 评论(0) 推荐(0)

Python - What's the difference between str.split() and str.partition() ?

摘要： str.split() and str.partition() both split strings, but they behave very differently and are used for different purposes. Here’s the clearest comparis 阅读全文

posted @ 2025-12-10 10:36 ZhangZhihuiAAA 阅读(8) 评论(0) 推荐(0)

Airflow - Template Variables

摘要： 📌 Most Useful Airflow Template Variables 🧩 Task Instance Context VariableMeaning ti The TaskInstance object. Commonly used. task_instance Same as ti 阅读全文

posted @ 2025-12-10 09:59 ZhangZhihuiAAA 阅读(3) 评论(0) 推荐(0)

Airflow - EmptyOperator

摘要： ✅ Why Airflow Needs an EmptyOperator 1. To define branching / joins cleanly When you branch or fan out tasks, you often need a join task that doesn’t 阅读全文

posted @ 2025-12-10 09:30 ZhangZhihuiAAA 阅读(4) 评论(0) 推荐(0)


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2025年12月10日