Amazon Lambda Function for Amazon Lex chatbot using sagemaker and langchain

Question

I have created one lambda function name: chatbot-sagemaker. Below is code structure:

chatbot-sagemaker:
lambda_function.py
requirements.txt
___
in requirements.txt -

langchain==0.0.161
pydantic==1.10.7
boto3==1.26.91
aws-requests-auth==0.4.3

----

The error I'm getting :

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

How can I solve this  or how do I need to install those libraries in AWS lambda function? Please help.

Accepted Answer

Hi,

Specifying your dependencies in requirements.txt is not sufficient.

Lambda runtime supplies a limited set of 3rd-party Python packages.  You have to add the missing ones by yourself.

Follow this guidance to do it for langchain: https://docs.aws.amazon.com/lambda/latest/dg/python-package.html

Best,

Didier

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