How do I save the results of a task to the local filesystem? Suppose I have a workflow

test.py

from prefect import task, Flow
from prefect.engine.results import LocalResult

OUTPUT_DIR = './outputs'


@task(target='x.txt', checkpoint=True, result=LocalResult(dir=OUTPUT_DIR))
def saver():
    return 10


with Flow('example') as flow:
    saved = saver()

flow.run()

when I run

python test.py

I expect a file tree like

tree

.
├── outputs
│   └── x.txt
└── test.py

but when I run

python test.py

I don't see an

x.txt

file

.
├── outputs
└── test.py

I am using

prefect==0.14.12

What do I need to do to get

prefect

to save (and persist) file results?

If you're running locally (using

flow.run()

you'll need to enable checkpointing at the config level as well. You can do this through either environment variables or by modifying your

~/.prefect/config.toml

file:

# Through environment variables
export PREFECT__FLOWS__CHECKPOINTING=true

# ~/.prefect/config.toml
[flows]
checkpointing = true

That fixed it. Thanks!