hi I ve been having a RunTime ImportModuleError Unable to im Serverless Stack #help

hi! I've been having a "RunTime.ImportModuleError:...

Ricardo Arancibia

07/21/2021, 6:45 PM

hi! I've been having a "RunTime.ImportModuleError: Unable to import module 'lambda': No module named 'src' " error when I deploy my stack which contains a lambda function written in python that is triggered by a certain event. Has anyone had this problem? My folder structure is scheduling-algorithm | |-- lib |-- |--index.js |--|-- MyStack.js |-- src |--|-- init.py |--|-- lambda.py |-- |-- init.py |-- sst.json |-- package.json

Frank

07/21/2021, 6:46 PM

Hey @Ricardo Arancibia, are you getting this on

sst deploy

sst start

Ricardo Arancibia

07/21/2021, 6:49 PM

I can build and deploy my stack, this error happens when I test the lambda in the aws console

Ricardo Arancibia

07/21/2021, 6:51 PM

this error didn't happen when I created an API with

Copy code

const api = new sst.Api(this, "Api", {
      defaultFunctionProps: {
        srcPath: "src",
      },
      routes: {
        "GET /": "lambda.scheduling",
      }

Ricardo Arancibia

07/21/2021, 6:51 PM

my current lambda configuration is

Copy code

const multicenter = new sst.Function(this, "scheduling", {
      srcPath: "src",
      handler: "lambda.scheduling",
      permissions: permissions,
      environment: environmentLambda,
      runtime: "python3.7"
    })

Frank

07/21/2021, 6:56 PM

Just to clarify: • are the Api routes ie.

lambda.handler

also in Python? Where are you specifying the runtime for that? • was your flow: run

sst deploy

> invoke

scheduling

from AWS console > got the error?

Ricardo Arancibia

07/21/2021, 6:59 PM

I'm currently not implementing an API, this message https://serverless-stack.slack.com/archives/C01JG3B20RY/p1626893460333200?thread_ts=1626893104.332600&cid=C01JG3B20RY was about something that I was testing a time ago. Our idea now is to define a lambda in my stack that can be triggered by an event from the event bus

Ricardo Arancibia

07/21/2021, 7:01 PM

this is my current lambda configuration https://serverless-stack.slack.com/archives/C01JG3B20RY/p1626893512333400?thread_ts=1626893104.332600&cid=C01JG3B20RY •

lambda.scheduling

is in python • and yes, that was my workflow. Before the

sst deploy

I made a

sst build

Frank

07/21/2021, 7:11 PM

Got it. As for the flow, is it 1 or 2? 1. run

sst deploy

> invoke

scheduling

from AWS console > got the error; or 2. run

sst start

> invoke

scheduling

from AWS console > got the error

Ricardo Arancibia

07/21/2021, 7:14 PM

the option 1

Frank

07/21/2021, 7:22 PM

I see. Can I see what your lambda.py looks like? (Feel free to DM me if that works better). And I can give it a try.

Frank

07/22/2021, 6:43 AM

I created a repo here https://github.com/fwang/sst-python-import-example

Frank

07/22/2021, 6:43 AM

It mocks ur repo structure:

Copy code

/
  sst.json
  src/
    dir_a/
      file_a.py
    dir_b/
      file_b.py
    lambda.py

dir_a

is like your

service

dir_b

is like your

scheduling_temis

Frank

07/22/2021, 6:44 AM

And

lambda.py

imports something from

dir_a/file_a.py

, and

file_a.py

imports something from

dir_b/file_b.py

Frank

07/22/2021, 6:44 AM

You can try deploying this and see if it works for you.

Ricardo Arancibia

07/22/2021, 6:10 PM

thanks Frank! It did work when I used the way you import the function in sibling packages in the cloud

Ricardo Arancibia

07/22/2021, 6:10 PM

but unfortunately it stopped working locally with those imports

Ricardo Arancibia

07/22/2021, 6:12 PM

I'll try to find a way to fix that, but thanks! I was really stuck on this

Frank

07/22/2021, 6:23 PM

What SST version are you using? We fixed a Python import related issue recently.

Ricardo Arancibia

07/22/2021, 6:35 PM

I'm using version 0.31.0

Frank

07/22/2021, 6:36 PM

Yeah, it was fixed in 0.32.1 - https://github.com/serverless-stack/serverless-stack/releases/tag/v0.32.1

Frank

07/22/2021, 6:36 PM

You can try upgrading to the latest v0.35.0 that is

Ricardo Arancibia

07/22/2021, 6:42 PM

I'll give it a try. Thanks Frank!

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