Fast way to fix not working ctype.util.find_library() in python alpine. Rather quick workaround, but works :)

Dockerfile

FROM python:2-alpine

ENV PYTHONUNBUFFERED=1 \
    PROJECT_ROOT=/srv

COPY requirements.txt $PROJECT_ROOT/

RUN apk add --update --virtual build-dependencies build-base python-dev \
    && cd $PROJECT_ROOT && pip install -r requirements.txt \
    
    # those two lines replaces "find_library(...)" call with result of "ls /lib | grep ..." in problematic packages
    && sed -i -e "s/ctypes\.util\.find_library('crypto')/'$(ls /lib | grep crypto)'/g" /usr/local/lib/python2.7/site-packages/pyelliptic/openssl.py \
    && sed -i -e "s/find_library('c')/'$(ls /lib | grep libc.musl)'/g" /usr/local/lib/python2.7/site-packages/fakeredis.py \
    
    && apk del build-dependencies \
    && rm -rf /var/cache/apk/*
    
    
COPY . $PROJECT_ROOT
WORKDIR $PROJECT_ROOT

replace-find-library-example.bash

#!/usr/bin/env bash

CODE_FRAGMENT="find_library('c')"
LIBRARY_NAME="libc.musl"
PACKAGE_NAME="fakeredis.py"

sed -i -e "s/$CODE_FRAGMENT/'$(ls /lib | grep $LIBRARY_NAME)'/g" /usr/local/lib/python2.7/site-packages/$PACKAGE_NAME