I have a python program with large number on input parameters. say around 35+. We are currently using argparser to set default values, load some of them from config files and pass them all args to functions. I'd like to convert the program into a flow. Is there a way to use the existing args in the flow. I have illustrated a sample of what id like to achieve but this fails when i try to run this from UI (refer attach image too).

import argparse

from prefect import Flow, Parameter, task

import prefect

from prefect.environments import LocalEnvironment

@task

def testing(args):

    

logger = prefect.context.get("logger")

<http://logger.info|logger.info>(f"agrs value for name is : {args.name}")

<http://logger.info|logger.info>(f"agrs value for worker is : {args.workers}")

with Flow("args_trial") as flow:

    

opts = Parameter("opts")

    

testing(args=(opts))

if __name__ == "__main__":

    

parser = argparse.ArgumentParser(description="test pywinrm")

    

parser.add_argument("--workers", type=int, default=10)

    

parser.add_argument("--sleep_time", type=int, default=2)

    

parser.add_argument("--name", type=str, default="args_tester")

    

opts = parser.parse_args()

#    flow.run(opts=opts)

    

flow.environment = LocalEnvironment(labels=["qure9", "pipelines"])

    

flow.register(project_name="Test")

I can seem to figure out how to pass the default args while registering. Also, if i have to convert each of them into prefect parameters, i'd like to pass all parameters to a function using something like def func_1(args) instead of specifying 15-20 to each function. is that possible?

Hi Anish - can you please edit your main comment and post the code block within a thread in the future? That way the main channel stays tidy. Otherwise, I’m not sure what you’re asking for here - you can provide parameter defaults to the

Parameter

constructor like

opts = Pararameter("opts", default=some_default_value)

and for flows that require large amounts of parameters, you might consider combining them all into a single dictionary

@Chris White will keep that in mind the next time. Didnt realize you can pass dictionaries in parameter. Thanks.