/usr/ is in python-fftw 0.2.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/python-fftw/
/usr/share/doc/python-fftw/copyright
/usr/share/doc/python-fftw/changelog.Debian.gz
/usr/lib/
/usr/lib/python2.7/
/usr/lib/python2.7/dist-packages/
/usr/lib/python2.7/dist-packages/fftw3f/
/usr/lib/python2.7/dist-packages/fftw3f/lib.py
/usr/lib/python2.7/dist-packages/fftw3f/planning.py
/usr/lib/python2.7/dist-packages/fftw3f/wisdom.py
/usr/lib/python2.7/dist-packages/fftw3f/__init__.py
/usr/lib/python2.7/dist-packages/PyFFTW3-0.2.2.egg-info
/usr/lib/python2.7/dist-packages/fftw3/
/usr/lib/python2.7/dist-packages/fftw3/lib.py
/usr/lib/python2.7/dist-packages/fftw3/planning.py
/usr/lib/python2.7/dist-packages/fftw3/wisdom.py
/usr/lib/python2.7/dist-packages/fftw3/__init__.py
/usr/lib/python2.7/dist-packages/fftw3l/
/usr/lib/python2.7/dist-packages/fftw3l/lib.py
/usr/lib/python2.7/dist-packages/fftw3l/planning.py
/usr/lib/python2.7/dist-packages/fftw3l/wisdom.py
/usr/lib/python2.7/dist-packages/fftw3l/__init__.py