AWS lambda function does not find the main app when running a local sam invoke command. How do I make sam invoke find the app.py application?

Question

The command which fails is:

/usr/local/bin/sam local invoke HelloWorldFunction --template /home/peter/Dropbox2/Dropbox/clothes_recco/production/bodyestimate/.aws-sam/build/template.yaml --event "/tmp/[Local] BodyEstimate-event109.json"

and it outputs an error:

{"errorMessage": "Unable to import module 'app': No module named 'bodyestimate'", "errorType": "Runtime.ImportModuleError", "requestId": "3b3bb307-9647-4171-99a6-24dae52b3b55", "stackTrace": []}END

My lambda function structure is:

bodyestimate/
   bodyestimate/
       template.yaml
       packaged.yaml
       app.py
       requirements.txt
       __init__.py
       Dockerfile
   test/
      unit/ 
         test_handler.py

The pytests pass when I run the test_handler.py which imports the app.py. It seems to me that sam invoke does not find the main app function when the project is ran as a programme.

Any thoughts on how I can get the sam local invoke to recognise the app in app.py?

My template.yaml file is below:

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Is it the same error if you try with the template in the bodyestimate (/home/peter/Dropbox2/Dropbox/clothes_recco/production/bodyestimate/template.yaml) ? — Ghamgui Khaled

Peter Dimmar Peter Dimmar · Accepted Answer · 2021-10-17T17:07:40

The problem was to do with the app file not being copied into the container.

Adding a '''COPY app.py ./''' into the docker file solved the problem!

AWS lambda function does not find the main app when running a local sam invoke command. How do I make sam invoke find the app.py application?

1 Answers