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sparse-intern-71089

07/15/2022, 8:34 AM

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✅ 1

echoing-dinner-19531

07/15/2022, 9:57 AM

What happens if you try and run that python command?

python -m pip list -v --format json

echoing-dinner-19531

07/15/2022, 10:07 AM

Is there a venv setup for this project? Would be specified in the Pulumi.yaml

victorious-machine-51951

07/15/2022, 10:07 AM

I tried pulumi-aws version 4.38.1 (the version it was 4 months back) and also the latest version 5.10.0. I get the same error.

echoing-dinner-19531

07/15/2022, 10:08 AM

I doubt this is anything to do with the aws version. It a plain python command that's giving a bad exit code.

echoing-dinner-19531

07/15/2022, 10:08 AM

Pulumi will try to invoke the "right" python based on venv settings, so that might be starting a different python binary to what's the default on your path.

victorious-machine-51951

07/15/2022, 10:09 AM

Pipfile reads, [packages] pulumi = ">=3.0.0,<4.0.0" pip = "*" pulumi-aws = "~=4.38.0" [requires] python_version = "3.9"

victorious-machine-51951

07/15/2022, 10:09 AM

I tried changing the Pipfile to show python 3.9, 3.8 and 3.10. Maybe there is a mismatch between python version and pulumi-aws version.

echoing-dinner-19531

07/15/2022, 10:13 AM

Can you run with --logtostderr -v5 and see what that prints. It should include a line like

Language host launching process

which will say exactly what python is being run

victorious-machine-51951

07/15/2022, 10:26 AM

It threw a lot of info. There was no

Language host launching process

echoing-dinner-19531

07/15/2022, 10:27 AM

Oh sorry my bad, of course that message comes from the language plugin so it needs

--logflow

added to the command to show up 🤦‍♂️ sorry

victorious-machine-51951

07/15/2022, 10:31 AM

The output showed a venv path to python. I checked the python version. It is Python 3.10.5. Not the intended 3.9 as shown in Pipfile.

echoing-dinner-19531

07/15/2022, 10:32 AM

And if you run

-m pip list -v

with that python does it error?

👍 1

victorious-machine-51951

07/15/2022, 10:34 AM

The path also contains python3.9 along with python(which is 3.10). How can I make pulumi use python3.9 ?

echoing-dinner-19531

07/15/2022, 10:35 AM

I think it's hardcoded to use an executable called "python", doesn't look like there's anyway to override that currently.

echoing-dinner-19531

07/15/2022, 10:37 AM

Annoyingly the env var PULUMI_PYTHON_CMD can change it, but it doesn't get picked up when on the venv path. Which arguably is a bug.

victorious-machine-51951

07/15/2022, 10:48 AM

I deleted the "python" in the venv. Then recreated the "python" as a soft link to /usr/bin/python3.9. The error is gone. Thank you Fraser. A recent update of python from 3.9 to 3.10 has caused the issue in some old pulumi projects.

echoing-dinner-19531

07/15/2022, 10:48 AM

FYI I've also raised https://github.com/pulumi/pulumi/pull/10155 to allow overriding of this via envvar in the future

🙌 1

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