Lambda layer: "Unable to import module: No module named 'opensearchpy'"

Question

I am creating a python lambda with lambda layer for the opensearch module dependency.

Locally, I pip installed opensearch-py into lambdalayerstuff/opensearchpyFolder

Here's my CDK code:

```
const lambdaLayerOpensearchpy = new lambda.LayerVersion(this, 'layer_3', {
      code: lambda.Code.fromAsset('./lambdalayerstuff/opensearchpyFolder')
    })

// lambda
    const lambda1 = new lambda.Function(this, "lambda_1", {
      vpc: vpc,
      vpcSubnets: {
        subnetType: ec2.SubnetType.PRIVATE_WITH_EGRESS
      },
      memorySize: 512, // MB
      runtime: lambda.Runtime.PYTHON_3_8,
      code: lambda.Code.fromAsset(path.join(__dirname, '../src/lambda')),
      handler: 'lambdacode.handler',
      layers: [lambdaLayerOpensearchpy],
      timeout: cdk.Duration.seconds(120) 
    })
```

Please advise on what changes I need to allow my python lambda to use opensearchpy package. Thank you.

Gary Mclean · Answer

opensearchpyFolder Needs to installed in a folder called python

So it will look like /python/opensearchpyFolder

Zip up the python folder recursive so it looks the same in the zip

Lambda layer: "Unable to import module: No module named 'opensearchpy'"

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