Hi All My CI process is failing health checks when building my flow with

prefect build -p

with the following error. Anyone experience this issue?

Beginning health checks...
System Version check: OK
Traceback (most recent call last):
  File "/opt/prefect/healthcheck.py", line 150, in <module>
    flows = import_flow_from_script_check(flow_file_paths)
  File "/opt/prefect/healthcheck.py", line 63, in import_flow_from_script_check
    flows.append(extract_flow_from_file(file_path=flow_file_path))
  File "/usr/local/lib/python3.8/site-packages/prefect/utilities/storage.py", line 86, in extract_flow_from_file
    exec(contents, exec_vals)
  File "<string>", line 129, in <module>
NameError: name '__file__' is not defined

Hey @Belal Aboabdo -- are you referencing

__file__

in your flow script?

Yes I am

It looks like we're not providing a value for that during load from storage because the flow no longer has a real "file" location -- what are you using it for? (your use-case may justify adding a fake value here)

Makes sense we're using it to manage our flow configuration here's a snippet:

if __name__ == "__main__":

    flow_params = dict(file_path=os.path.abspath(__file__))

    FlowManager(flow, flow_params).do(entry_point())

Hm. What are you using for flow storage here?

We're using Docker storage with aws ecr.

I'm trying to reproduce this but the

__name__

should not be

__main__

when that flow is loaded

No not within the flow itself.

Would it be feasible to DM me your flow script in entirety?

from prefect import Flow
from prefect.storage import Docker as DockerStorage 


with Flow("test") as flow:
   pass


flow.storage = DockerStorage(base_image="prefecthq/prefect:0.14.7")

if __name__ == "__main__":

     print(__file__)

works fine with

prefect build -p

Sorry I can't share the script but I can try replicating the issue with the snippet you just sent.

That'd be great! A minimal example would be really helpful

Sorry for the confusion I believe I found the flow that's causing the issue here:

with Flow(
    flow_name,
    **get_configs(
        file_path=os.path.abspath(__file__), flow_name=flow_name, schedule=sched
    ),
) as flow:

I had a similar issue here. Not the exact same (wrong

__file__

value rather than

NameError

), but maybe this also has to do with how/if the flows are pickled?

Yeah I'm not sure this is an unexpected issue. Using

__file__

in your flow declaration like that is a brittle case for us to handle. I'll open an issue to look into it further nonetheless.

Thanks for all the help everyone!