/usr/lib/python2.7/dist-packages/cryptography-0.6.1.egg-info/entry_points.txt is in python-cryptography 0.6.1-1+deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | [cryptography.backends]
openssl = cryptography.hazmat.backends.openssl:backend
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