Hey I just finished going through the Get Started section fo

Question

Hey I just finished going through the Get Started section for the Prefect 2 0 docs I haven t yet gotten to the Concepts yet so bear with me if this is a dumb question But how do I define dependencies between tasks What is the equivalent of `task set upstream` from prefect 1 I know Prefect 2 0 tries to remove the strict dependency on DAGs but are DAGs gone altogether

YSF · Answer

Update I ve finished going through all the concepts too now I don t know if its just the documentation but it seems like actual DAGs have become somewhat relegated in terms of features and support I really had to dig to find an example of how to set task dependencies and came across this It says between tasks that do not exchange data Was that not one of the huge problems of Airflow and xcom that Prefect originally set out to solve Its a bit ominous that this link from google returns a 404

Taylor Curran · Answer

Hi Yusuf Prefect 2 0 does not require DAG definition If tasks pass data to one and other Prefect will derive their dependence on each other at runtime that is why we provide ways for you to specify dependence if no data is passed between If data is passed between them no need to worry about defining the dependency structure which may or may not be a DAG Prefect should figure this out during runtime assuming submit syntax is employed

YSF · Answer

Understood thanks that was throwing me off I didn t gather that it was implicit