pex_config is a package in the LSST Science Pipelines.
The lsst.pex.config module provides a configuration system that is integral to the task framework, though it can be used on its own as well.
Documentation: https://pipelines.lsst.io/v/daily/modules/lsst.pex.config/
This software is dual licensed under the GNU General Public License (version 3 of the License, or (at your option) any later version, and also under a 3-clause BSD license. Recipients may choose which of these licenses to use; please see the files gpl-3.0.txt and/or bsd_license.txt, respectively.