Need to install Python module that have system dependencies

Problem

Unable to install Python modules that have system dependencies, such as mysqlclient, and there’s no faculty in this package to do so.

Suggested Solution

Add support for an optional pre-requirements shell script to be run. This shell script (which the end-user must write) must be able to both install system packages, and then copy any desired artifacts into the folder to get packaged. In my above instance, I would suggest something like…

  pythonRequirements:
    dockerizePip: true
    preReqScript: install-mysql-devel.sh

and that shell script install-mysql-devel.sh (in the same folder as serverless.yml) would contain…

#!/bin/bash
yum install -y mysql-devel
cp /usr/lib64/mysql/libmysqlclient.so.18.0.0 ./libmysqlclient.so.18

I’ll put a bounty on this feature of ~$100 either in money or stuff, your choice. I need this badly, and don’t have the time to make this feature right now. I will eventually implement this if no one’s free because I’ll need it and it will annoy me too much.

[jadhavmanoj]

@dschep Thanks for your suggestion. I created a custom image using amazonlinux image as a base image.

FROM library/amazonlinux
RUN curl -s https://bootstrap.pypa.io/get-pip.py | python
RUN yum install -y mysql-devel
....

Note: there is an issue with MySQL-python package and mysqlclient package. So I used PyMySQL==0.8.0 which solve my problem.

[maheshgawali]

Getting same issue as @jadhavmanoj , after updating the docker image as @dschep suggested, now I am getting this Rpmdb checksum is invalid: dCDPT(pkg checksums): libsepol-devel.x86_64 0:2.1.7-3.12.amzn1 - u

is this issue related to https://forums.aws.amazon.com/thread.jspa?threadID=244745