Can't import Airflow plugins

Question

Following Airflow tutorial here.

Problem: The webserver returns the following error

Broken DAG: [/usr/local/airflow/dags/test_operat         


        

Answer 1

In the article it does like this:

class MyFirstPlugin(AirflowPlugin):
    name = "my_first_plugin"
    operators = [MyFirstOperator]

Instead use:

class MyFirstPlugin(AirflowPlugin):
    name = "my_first_plugin"
    operators = [MyFirstOperator]
    # A list of class(es) derived from BaseHook
    hooks = []
    # A list of class(es) derived from BaseExecutor
    executors = []
    # A list of references to inject into the macros namespace
    macros = []
    # A list of objects created from a class derived
    # from flask_admin.BaseView
    admin_views = []
    # A list of Blueprint object created from flask.Blueprint
    flask_blueprints = []
    # A list of menu links (flask_admin.base.MenuLink)
    menu_links = []

Also don't use:

from airflow.operators import MyFirstOperator

According to the airflow article on plugins, it should be:

from airflow.operators.my_first_plugin import MyFirstOperator

If that doesn't work try:

from airflow.operators.my_operators import MyFirstOperator

If that doesn't work, check your web server log on startup for more information.