[BUG] PyTesseract Doesn't work with libpng15

[TheLucasMoore]

Describe the bug
I've been using the pytesseract lambda image on top of aws-lambda-tesseract-layer. It does not work and I'm hoping to get clarification in the docs.

Screenshots
When running my function I see this error

{
  "errorMessage": "(127, 'tesseract: error while loading shared libraries: libpng15.so.15: cannot open shared object file: No such file or directory')",
  "errorType": "TesseractError",
  "stackTrace": [
    "  File \"/var/task/handler.py\", line 22, in translate\n    text = image_to_text(file_name)\n",
    ]
 }

It seems to imply that imports all succeeded and the tesseract binary is working. It breaks down when trying to run pytesseract though.

Layer Version ARN:
arn:aws:lambda:us-west-1:<my account>:layer:tesseract:7 (my own, following the tutorial in the README)
arn:aws:lambda:us-west-1:770693421928:layer:Klayers-python38-pytesseract:14

Framework:
Serverless

Additional context
It would be nice (and I'd be happy to help) to build a standard tesseract layer that plays nicely with the pytesseract layer.

[TheLucasMoore]

Oh and I did go through #94 and comment there. At this point, I think this issue is distinct.

[TheLucasMoore]

So I've got this working now. It was an issue with the Tesseract base image actually (see bweigel/aws-lambda-tesseract-layer#14).

Since everything else moved to Python 3.8, perhaps we can work together on getting a base image with the tesseract binary working in this repo?

[keithrozario]

I'm happy to include in the repo, if someone has a working binary layer already :)...

[TheLucasMoore]

I do have one working! My fork is working for Python 3.8.
You just need to clone it and run:

# Build Layer components
./build.sh
# Deploy via Serverless
sls deploy

I don't have mine available in every availability zone like you do, so I think it'd be best if you still owned the layer though.
What do you think?

[rloibman]

Is there a Tesseract layer available for region sa-east-1? It could be python 3.8 or python 3.9... Thanks