气流 dag 文件已到位，但在我执行气流 dag 列表时未显示

Question

我根据教程稍加修改在 dags 文件夹中放置了一个 dag 文件，但它没有显示在 GUI 中或运行气流 dags 列表时。

Answer 1

Answering my own question: Check the python file for Exceptions by running it directly. It turns out one exception in the dag's python script due to a missing import made the dag not show up in the list. I note this just in case another new user comes across this. To me the moral of the story is that dag files should often be checked by running with python directly when they are modified because there won't be an obvious error showing up otherwise; they may just disappear from the list.