/usr/bin/python3.4dm-config is in python3.4-dbg 3.4.3-1ubuntu1~14.04.7.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/bin/x86_64-linux-gnu-python3.4dm-config
/usr/bin/x86_64-linux-gnu-python3.4dm-config