system-config/docker/python-builder/scripts/install-from-bindep

#!/bin/bash
# Copyright (c) 2019 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.

set -e

apt-get update
apt-get -y install $(cat /output/bindep/run.txt)
# If a requirements.txt file exists,
# install it directly so that people can use git url syntax
# to do things like pick up patched but unreleased versions
# of dependencies.
if [ -f /output/requirements.txt ] ; then
    pip install --cache-dir=/output/wheels -r /output/requirements.txt
fi

# Install the wheels.  Use --force here because sibling wheels might
# be built with the same version number as the latest release, but we
# really want the speculatively built wheels installed over any
# automatic dependencies.
pip install --force --cache-dir=/output/wheels /output/wheels/*.whl

# clean up after ourselves
apt-get clean
rm -rf /var/lib/apt/lists/*