Ash Berlin-Taylor created AIRFLOW-5808:
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Summary: DAG timezones from datetime.timezone not converted to
Pendulm
Key: AIRFLOW-5808
URL: https://issues.apache.org/jira/browse/AIRFLOW-5808
Project: Apache Airflow
Issue Type: Bug
Components: DAG
Affects Versions: 1.10.5
Reporter: Ash Berlin-Taylor
Fix For: 1.10.7
The airflow docs mention that you should use Pendulum timezones, but we don't
enforce this, and the stdlib timezone is mostly, but not entirely API
compatible with this.
For instance if you create your DAG like this:
{code:python}
from airflow import DAG
from datetime import datetime, timedelta, timezone
dag = DAG('my_dag', start_date=datetime(2019, 2, 6, hour=0,
tzinfo=timezone(timedelta(0), name='UTC'))
{code}
It will _mostly_ work, except this will break the Tooltip generation in the
graph page as it expects a pendulm.timezone.
To make everything predictable in Airflow the DAG constructor should convert
non-pendulum timezones when it encounters them.
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