/usr/lib/python2.7/dist-packages/M2Crypto/ftpslib.py is in python-m2crypto 0.21.1-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/M2Crypto/../../../../share/pyshared/M2Crypto/ftpslib.py