AWS Lambda Python error - Runtime.ImportModuleError

Question

I am running the AWS Step by step guide for following link.

I am currently on Step 4. - Create the Lambda function that splits input data

I am running on a Windows 10 machines with Python installed:

pip 20.2.3 -  (python 3.9)

The Lambda function on AWS is failing with following:

{
  "errorMessage": "Unable to import module 'lambda_function': No module named 'fsspec'",
  "errorType": "Runtime.ImportModuleError"
}

Function Logs

[ERROR] Runtime.ImportModuleError: Unable to import module 'lambda_function': No module named 'fsspec'

Please recommend any solution.

have you looked at this? stackoverflow.com/questions/35340921/… — sagar1025
if you are following the guide then in this Step 3: Create a package that contains the required Python libraries in #3.8 describes how to package your dependencies. Please check if your uploaded zip to lambda has the dependecies packaged. — samtoddler

Amresh Kadian Amresh Kadian · Accepted Answer · 2021-02-09T03:35:51

The issue was with the file permissions. I was zipping the files on Windows 10 machine and due to some reason the files are not having execute permission. The function is able to run once the permissions are set correctly using a Mac:

Commands used - 

 1. chmod -R +x *.py
 2. zip xyz.zip *

AWS Lambda Python error - Runtime.ImportModuleError

1 Answers