Been trying to wrap

pants

invocations in pythons

subprocess

. So far it had worked ok, but using

[python-repos]
indexes = [
    '<https://aws>:%(env.CODE_ARTIFACT_TOKEN)s@<our-python-repo>/simple
]

and adding the appropriate platform to the

pex_binary

causes

subprocess.run(f'./pants package {dockerfile} --dynamic-ui=False', shell=True, text=True, env=os.environ)

to hang. Running

./pants package <the-dockerfile>

works, so it's something specific to

subprocess

Are you running your script through Pants itself? By default Pants doesnt support dsaemonized concurrent runs, and the subsequent runs "wait their turn"

No, the script that fires off the subprocess is the aws cdk

Ah, worth a shot 🙂

Maybe I have an XY problem.. Is there a way to programmatically get a hold of the docker image ID:s after a

./pants package

run? Right now I use

image_sha = result.split('Docker image ID:')[1].strip()

from the subprocess run.

I think parsing the output should be sufficient.

Right, the approach works minus that for some reason python subprocess cant seem to download via custom index in python-repos, its just epolling until the end of time 😢

I'll leave those more experienced in that specific slice of Pants to answer. I couldn't tell you what's going on there 😞