AWS Lambda and Numpy Libraries - Importing the multiarray numpy extension module failed

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Trying to successfully run numpy on AWS Lambda. The information I have read indicates that you need to use numpy libraries specifically compiled/compatible with AWS EC2.

Do do this I first followed the instruction to compile numpy on an ec2 instance, here:

Installing numpy on Amazon EC2

I then copied the newly built numpy into my Lambda application folder on my desktop, zipped up a Lambda deployment package containing the entire directory.

Upon running my Lambda function I still get this error:

Importing the multiarray numpy extension module failed. Most likely you are trying to import a failed build of numpy. If you're working with a numpy git repo, try git clean -xdf (removes all files not under version control). Otherwise reinstall numpy.

Suggestion?

aws-lambda python-2.7 opencv numpy
2 Answers

Adding an answer for anyone who finds this old question.

Luckily, this problem has now been solved with Lambda Layer. AWS even provides a NumPy and SciPy layer. You can attach it directly to your Lambda in the web console or use this ARN arn:aws:lambda:us-east-1:668099181075:layer:AWSLambda-Python36-SciPy1x:2

user_13709860

An easy way to make your lambda function support the numpy library for python 3.7:

  1. Go to your lambda function page
  2. Find the Layers section at the bottom of the page.
  3. Click on Add a layer.
  4. Choose AWS layers as layer source.
  5. Select AWSLambda-Python37-Scipy1x as AWS layers.
  6. Select 37 for version.
  7. And finally click on Add.

Now your lambda function is ready to support numpy.

user_57119760
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