"Error: poetry not found! Install it according to the poetry docs." on Windows 10

[jorgenfroland]

Hi,

I'm on Windows10. Serverless environment:

Your Environment Information --------------------------- Operating System: win32 Node Version: 14.15.4 Framework Version: 2.42.0 Plugin Version: 5.1.2 SDK Version: 4.2.2 Components Version: 3.10.0

Version of plugin:

5.1.1

I'm using poetry and according to the documentation, this should work fine. From the doc:

If you include a pyproject.toml and have poetry installed instead of a requirements.txt this will use poetry export --without-hashes -f requirements.txt -o requirements.txt --with-credentials to generate them.

But I ran into this error when I tried to deploy:

PS > serverless deploy Serverless: Generating requirements.txt from pyproject.toml...

Error ---------------------------------------------------

Error: poetry not found! Install it according to the poetry docs. at ServerlessPythonRequirements.pyprojectTomlToRequirements (C:<path replaced>\node_modules\serverless-python-requirements\lib\poetry.js:34:13)

After some research I found this comment: https://stackoverflow.com/a/54515183/5759828 suggesting to use {shell:true}. As part of my testing I found that the output of spawnSync (line 17 in poetry.js) is:

error: Error: spawnSync poetry ENOENT

I then added shell:true to poetry.js like this:

const res = spawnSync(
    'poetry',
    [
      'export',
      '--without-hashes',
      '-f',
      'requirements.txt',
      '-o',
      'requirements.txt',
      '--with-credentials',
    ],
    {
      cwd: this.servicePath,
      shell: true  <--- added this
    }
  );

and now it works fine.

[NimishVerma]

Same here, this issue was solved when I added shell: true as well.

Is there a fix coming for this?

I believe it tries to run poetry in node env instead of shell and does not find the binary that is already in our path for poetry CLI.