AWS Lambda : How to use Pillow library?

Question

I'm trying to create an AWS lambda function in order to create thumbnail of my uploaded images. My script is running well locally, I followed this tutorial to deploy my function but I have a problem with the Pillow library, indeed when I'm testing my function I can see this following log :

I found this post with the same issue but in my case I can't execute command line on the machine.

Sequela

Solution: look here github.com/Miserlou/lambda-packages/tree/master/lambda_packages - they have precompiled PIL packages – Marigolde

Hey, I posted a solution here that does not require Docker. You just create a layer, the trick being that you have the correct version of Python locally, which you can install if needed. https://mcmap.net/q/242213/-getting-pil-pillow-4-2-1-to-upload-properly-to-aws-lambda-py3-6 – Jap

Answer 1

You must include the libjpeg.so in your lambda package, but it will also require some tweaking with the patchelf utility. Assuming that you prepare the lambda package via "pip install module-name -t" (rather than via virtualenv), do the following:

cd into/your/local/lambda/package/dir
cp -L $(ldd PIL/_imaging.so|grep libjpeg|awk '{print $3}') PIL/
patchelf --set-rpath PIL PIL/_imaging.so
# zip, deploy and test the package

This script works for Pillow version 3.2.0.

Regarding patchelf: under Ubuntu it can be 'apt install'ed, but under other Linuxes it may need to be built from source.

Cyanamide

It is strange, but it works only if I add the following line sys.path.append("./PIL") – Dictation

Answer 2

The problem here is that Pillow uses native libraries that must be built for the exact correct environment.

I solved this by installing my requirements in a Docker container that replicates very closely the AWS Lambda environment, lambci/lambda. I used the build-python3.8 version.

I installed my requirements there and zipped up the whole contents of /var/lang/lib/python3.8/site-packages/ directory along with my lambda function file.

I tried this with a standard Amazon Linux Docker image and it didn't work. Only the lambci/lambda image worked for me.

Katelynnkaterina