lxml >= 3.6.0, < 3.7
defusedxml >= 0.4.1, < 0.5
eight >= 0.3.0, < 0.4
cryptography >= 1.4, < 1.8
pyOpenSSL >= 16.0.0, < 17
certifi >= 2015.11.20.1

[:python_version == "2.7"]
enum34 >= 1.0.4

[:python_version == "3.3"]
enum34 >= 1.0.4
