Hello everyone I am just starting to evaluate Prefect with D

Question

Hello everyone I am just starting to evaluate Prefect with DaskTaskRunners migrating from Luigi The workflow is highly parametrized for now users would call a prefect script from the command line and input a setting file but I would like it to be compatible to the deployment parameters in the future It is unclear to me where I find more information about flow parametrization I have seen this article which seems to use Prefect 1 x and then the tutorial using Pydantic

Nate · Answer

hi < Maximilian Schulz> it sounds like in your case in practice you ll be dealing with so you can set default parameters on a flow that you will deploy like ``` flow def my flow param1 str = marvin param2 int = 42 ``` which will be picked up during deployment creation or you can edit the parameters in deployment yaml as mentioned the linked docs and then users can kick off flow runs from the UI API or CLI by

Maximilian Schulz · Answer

Thank you < Nate> for your response Do you know if there is any built in support to call a Prefect flow from command line not the Prefect Server and use a config file instead of a deployment similar to e g Luigi or Nextflow

Nate · Answer

we don t necessarily have a config file for flows but if you re just interested in running a flow locally and using a standalone file to hold values you could define default param values in one file and import them into your flow file so that you can change the param defaults without changing your flow code you could run your flow locally with `python yourfile py` if you re looking for something else let me know I m not the most familiar with luigi nextflow slightly smiling face `values py` or use yaml and `safe load` if you wanted ```param1 = marvin param2 = 42``` `my flow py` ```from values import param1 param2 flow def my flow param1 str = param1 param2 int = param2 ```