Has anyone tried to integrate Voila into a Pants based proje Pants #general

Has anyone tried to integrate Voila into a Pants-b...

brash-student-40401

10/17/2022, 8:18 PM

Has anyone tried to integrate Voila into a Pants-based project? We're using it to serve a notebook-based app. I think the problems I'm having are pretty basic, but I would appreciate a second set of eyes if anyone has any ideas! Details in 🧵

brash-student-40401

10/17/2022, 8:24 PM

My app has a

BUILD

that looks like:

Copy code

python_sources()

python_requirement(
    name="app_analytics",
    requirements=["analytics-python~=1.4.0"],
)

python_test_utils(
    name="test_utils",
)

pex_binary(
    name="app_bin",
    entry_point="__init__.py",
    dependencies=["src/services/app/app:app_analytics"]
)

pex_binary(
    name="app_voila_bin",
    entry_point="_voila.py",
    dependencies=["src/services/app/app:app_bin"]
)

and

_voila.py

is simply

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from <http://voila.app|voila.app> import Voila
import sys

config = {}

if __name__ == "__main__":
    Voila.launch_instance(argv=sys.argv)

I try to run the

app_voila_bin

goal as so

./pants run src/services/app/app:app_voila_bin -- --option1 --option2 ... src/services/app/notebooks/app.ipynb --optionN

, which is how I would sort the options when I run Voila through Poetry. But this throws

_voila.py: error: unrecognized arguments: src/services/app/notebooks/app.ipynb

. If I try to put the Notebook path first, I instead get

ValueError: provided more than 1 argument: ['/home/vscode/.pex/unzipped_pexes/d5f6d5a9fbc653c7cb5a6dd3e16771e175d24b82/app/_voila.py', 'src/services/app/notebooks/app.ipynb']

brash-student-40401

10/17/2022, 8:25 PM

So it looks like one way or the other, Voila is not getting the arguments properly. Any advice?

happy-kitchen-89482

10/17/2022, 9:32 PM

I see you have a

pex_binary

depending on another

pex_binary

, and I’m not sure that will work (or what is expected to happen)?

brash-student-40401

10/18/2022, 2:10 PM

That part actually seems to be working okay - basically since the Voila target is just reading a notebook, it won't grab the other stuff I need when I try to run it. But if I depend on the other guy, everything seems fine as far as dependencies go. I got around my original problem, but it seems like now I'm running into an issue with the files it's depending on, I'm going to post a different question on that.

brash-student-40401

10/18/2022, 2:18 PM

No I was wrong - simplifying it to a

python_source

(no reason to binary it) seems to be doing maybe what I expect sort of!

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