/usr/lib/pyshared/python2.7/hgext/inotify/linux/_inotify.so is in mercurial 2.0.2-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/pyshared/python2.7/hgext/inotify/linux/../../../../../python2.7/dist-packages/hgext/inotify/linux/_inotify.so