Prepare image

docker build -t libpython-repro .

Reproduce crash

docker run -it --rm libpython-repro bash -c 'cd /var/www; python3 -m core.app'

Reproduce with local modifications

docker run -v $PWD:/var/www -it --rm libpython-repro bash -c 'cd /var/www; python3 -m core.app'