/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/ is in python-cryptography 0.6.1-1+deb8u1.
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/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/__init__.py
/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/backend.py
/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/ciphers.py
/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/cmac.py
/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/dsa.py
/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/ec.py
/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/hashes.py
/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/hmac.py
/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/rsa.py
/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/utils.py