/usr/lib/python2.7/dist-packages/chemfp/rdmaccs.patterns is in python-chemfp 1.1p1-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/chemfp/../../../../share/pyshared/chemfp/rdmaccs.patterns