Getting Error: ENOENT when trying to add a module with one folder

[cscetbon]

All the files used can be found at https://github.com/cscetbon/sls-dd-missing-folder. Following https://www.npmjs.com/package/serverless-python-requirements, I can package functions f1 and f2, but not f3 which is in a folder:

$ sls package
Serverless: Packaging service...
Serverless: Excluding development dependencies...
Serverless: Excluding development dependencies...
Serverless: Excluding development dependencies...
Serverless: Injecting required Python packages to package...

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

  Error: ENOENT: no such file or directory, open '.serverless/sources/f3-sls-no-such-folder-dev-f3.zip'
 
     For debugging logs, run again after setting the "SLS_DEBUG=*" environment variable.

Get Support --------------------------------------------
     Docs:          docs.serverless.com
     Bugs:          github.com/serverless/serverless/issues
     Issues:        forum.serverless.com

  Your Environment Information ---------------------------
     Operating System:          darwin
     Node Version:              14.1.0
     Framework Version:         1.70.1
     Plugin Version:            3.6.11
     SDK Version:               2.3.0
     Components Version:        2.30.10

If I remove f3 from the configuration I got no problem. Somehow, having one more level breaks it.

[cturner-confluent]

I ran into this same issue with my project.

[cscetbon]

@cturner-confluent unfortunately there doesn’t seem to be much activity on that project when i see that no one responded in 15 days ...

[cturner-confluent]

Yeah makes me sad the serverless framework is obviously more focused around a NodeJS dev env. I may just have to switch over to using that instead of python. I did see this article where it looks like they have a nested folder structure https://medium.com/@nate_mitchell/serverless-packaging-user-defined-python-modules-41808776eae0 but not sure if it really works.

[cscetbon]

Yeah I think those modules should be part of the framework itself instead of being plugins cause those are general functionalities. At least a few languages other than nodes and ensure they are well supported

[ComfyDust]

Ran into this error myself and was able to resolve it by creating an empty requirements.txt file in the folder that contains the Lambda function module.

[MichaelRBond]

I'm seeing a similar issue where the serverless framework is creating a zip file in the root of the serverless directory, but this plugin is looking for it as a nested file with a different naming convention.

created zip:

.serverless/dpf-python-test-lambda.zip

plugin error:

Error: ENOENT: no such file or directory, open '.serverless/path/to/my/lambda/function/python-SERVICE_NAME-dpf-python-test-lambda.zip'

where module = path/to/my/lambda/function/python

[ctrongminh]

Thanks to @ComfyDust , I create an empty file requirements.txt under each python folder, and the problem is gone. I have the below structure

src
  python1
    python1.py
    requirements.txt
  python2
    python2.py
    requirements.txt

[augustoqm]

I had a different issue but similar ENOENT error message related with python3.9 After hours of digging I've found out the cause: When the serverless.yaml > provider > runtime = pythonX but you are using a different python version, you will get an ENOENT error. In my case I had runtime = 3.9 and local = 3.8. So learning: Make sure you use the same python version as referred on the provider > runtime. I hope this helps.