/usr/include/python3.4dm/pystrtod.h is in libpython3.4-dbg 3.4.2-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/include/python3.4dm/../python3.4m/pystrtod.h
/usr/include/python3.4dm/../python3.4m/pystrtod.h