optional Dokerfile addon for python3 development

# [Optional] Uncomment this section to install additional OS packages.
RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
    && apt-get -y install --no-install-recommends build-essential python3-dev python3-venv python3-pip python3-wheel python3-setuptools \
    && ln -sf /usr/bin/python3.7 /usr/bin/python && ln -sf /usr/bin/pip3 /usr/bin/pip \
    && pip3 install --upgrade pip setuptools wheel