/usr/lib/python2.7/dist-packages/slowaes-0.1a1.egg-info/SOURCES.txt is in python-slowaes 0.1a1-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/slowaes-0.1a1.egg-info/../../../../share/pyshared/slowaes-0.1a1.egg-info/SOURCES.txt