/usr/include/python3.4dm/ImDib.h is in python3-pil-dbg 2.3.0-1ubuntu3.4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/include/python3.4dm/../python3.4m/ImDib.h
/usr/include/python3.4dm/../python3.4m/ImDib.h