airflow TimeDeltaSensor fails with unsupported operand type

Question

In my DAG I have a TimeDeltaSensor created using:

from datetime import datetime, timedelta
from airflow.operators.sens         


        

Answer 1

Looking into the source code you linked there is one line that strikes me as interesting in this case:

target_dttm = dag.following_schedule(context['execution_date'])

Which means: If you don't have setup a proper DAG schedule this component will try to add its time delta to None.

I am not sure if the code in the question is just an example or the whole thing. My suggestion is: Add a DAG schedule with is other than None.