Unable to use Python's Paramiko library in AWS Lambda Function

Question

I have uploaded Paramiko library as a layer in the Lambda function. However, still when I am attempting to import the same, it is giving me the following error:

Response { "errorMessage": "Unable to import module 'lambda_function': No module named 'paramiko'", "errorType": "Runtime.ImportModuleError", "requestId": "8c81ba38-1074-43da-9427-ebad905d8d48", "stackTrace": [] }

Following is the file hierarchy within the upload .zip file:

Python->lib->Python3.6->site packages

The contents in the above location are also uploaded as an image.

On googling another answer, I also tried moving all the contents to the super-parent folder Python, but was still unsuccessful.

Please suggest how to make it work.

TIA.

I first added the library by uploading the zip in the layers of Lambda service. Then I went into my lambda function and added a layer to it and chose custom layer I added previously. — Ruchir Saxena
– Ruchir Saxena, Commented Nov 29, 2022 at 8:46
This is not how a layer is properly done. Check aws docs on how to do it correctly. — Marcin
– Marcin, Commented Nov 29, 2022 at 8:47
Perhaps I am unable to follow the documentation correctly, but I resolved the error by building the zip file on my other system. However, I am getting a new error: "errorMessage": "Unable to import module 'lambda_function': cannot import name 'asn1' from 'cryptography.hazmat.bindings._rust' (unknown location)", I also tried installing the asn1 and cryptography libraries explicitly using the --upgrade option, but that does not seem to work either. So now it is able to find the Paramiko library, but not asn1.pyi which is present in the same location it is searching at in the message. — Ruchir Saxena
– Ruchir Saxena, Commented Nov 29, 2022 at 13:33

Ruchir Saxena · Accepted Answer · 2022-12-01 11:47:11Z

0

I finally resolved it myself.

Turns out I was following all the steps correctly. But being new to AWS, and due to the unavailability of a Linux System, I was using the Windows system, and since Amazon works with Linux in the background, there was a discrepancy. I made use of the EC2 instance for Linux based libraries, and resolved the issue.

answered Dec 1, 2022 at 11:47

Ruchir Saxena

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