[jira] [Commented] (AIRFLOW-3739) Make start_date optional

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AIRFLOW-3739?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17417229#comment-17417229 ] 

ASF GitHub Bot commented on AIRFLOW-3739:
-----------------------------------------

potiuk closed pull request #5423:
URL: https://github.com/apache/airflow/pull/5423


   


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> Make start_date optional
> ------------------------
>
>                 Key: AIRFLOW-3739
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-3739
>             Project: Apache Airflow
>          Issue Type: Improvement
>          Components: api
>    Affects Versions: 1.10.3
>            Reporter: Anatoli Babenia
>            Priority: Major
>
> I want to define DAG, but not schedule it for running.
> ```
> from airflow import DAG
> from airflow.operators.bash_operator import BashOperator
> dag = DAG('115', schedule_interval="@daily")
> seed = BashOperator(
>     task_id='get_seed',
>     bash_command='date'
> )
> dag >> seed
> ```
> This fails with the error below.
> ```
> airflow.exceptions.AirflowException: Task is missing the start_date parameter
> zsh returned exit code 1
> ```
> It it possible to make `start_date` optional. If not, why?



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