Problems using MySQL with AWS Lambda in Python

Question

I am trying to get up and running with AWS Lambda Python (beginner in Python btw) but having some problems with including MySQL dependency. I am trying to follow the instruc

Answer 1

Using lambda-docker you can set up and test your Lambda functions without access to a like-wise Linux environment.

To set up your lambda, use a lambda-docker build image to run a detached docker container and run pip install <package> commands on the container. Then export the container, grab the installed packages under usr/lib, and place them in your AWS Lambda package.

Then you can test for compatibility by running your lambda on a lambda-docker image. If it works, go forth and upload to AWS Lambda with confidence.

docker run -d -v "$PWD":/var/task lambci/lambda:build-python2.7 tail -f /dev/null 

docker ps

docker exec 0c55aae443e6 pip install pandas

docker exec 0c55aae443e6 pip install sqlalchemy

docker exec 0c55aae443e6 pip freeze

docker exec 0c55aae443e6 python -c "import site; print(site.getsitepackages())"

docker container export -o lambda_ready_container 0c55aae443e6

Answer 2

Lambda -> Layers (add new layer)

download zip of pymysql from https://pypi.org/project/PyMySQL/#files

when you download, unzip then rename parent folder to "python" then rezip (should be python/{where the pysqlfiles are}

add a layer to Lambda called 'pymysql' and upload that zip

then in Lambda function import pymysql

Answer 3

I believe your issue is mostly down to missing development packages. I think you will need the following:

sudo yum -y install mysql-devel