lxml >= 3.5.0, < 4
defusedxml >= 0.4.1, < 0.6
eight >= 0.3.0, < 0.5
cryptography >= 1.8, < 1.9
asn1crypto >= 0.21.0
pyOpenSSL >= 0.15.1, < 18
certifi >= 2015.11.20.1

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

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