/usr/lib/python2.7/dist-packages/cupsext.la is in hplip 3.12.2-1ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/../../../share/pyshared/cupsext.la
/usr/lib/python2.7/dist-packages/../../../share/pyshared/cupsext.la