Package: openimageio Version: 1.5.19~dfsg0-1there is no python package for openimageio available for debian and it's not easy to build without compiling the whole package...
(see: http://openimageio.org/wiki/index.php?title=Python_bindings)
the python module is necessary to rebuild/update ACES 1.0.1 opencolorio configs etc.