Template based exceptions - these are simple and practical and avoid the proliferation of exception types. Although not syntatactically ideal, it is convenient and eminently practical.
https://anaconda.org/robostack-staging/ros-noetic-ecl-exceptions/badges/version.svg
https://anaconda.org/robostack-staging/ros-noetic-ecl-exceptions/badges/latest_release_date.svg
https://anaconda.org/robostack-staging/ros-noetic-ecl-exceptions/badges/latest_release_relative_date.svg
https://anaconda.org/robostack-staging/ros-noetic-ecl-exceptions/badges/platforms.svg
https://anaconda.org/robostack-staging/ros-noetic-ecl-exceptions/badges/license.svg
https://anaconda.org/robostack-staging/ros-noetic-ecl-exceptions/badges/downloads.svg