gevent>=1.1rc
pysasl<0.5,>=0.4.0

[:python_version < "3.0"]
pycares<3.0.0

[:python_version >= "3.0"]
pycares>=1

[aws]
boto

[disk]

[disk:platform_system == "Linux"]
pyaio>=0.4

[redis]
redis

[spf]
pyspf

[spf:python_version < "3.0"]
pydns
ipaddr

[spf:python_version >= "3.0"]
py3dns
