this either with dir() or with getattr(). What are you trying to do ?
Traceback (most recent call last):import Crypto
import twisted.conch.ssh.transport
twisted.conch.ssh.transport.RSA
File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'RSA'
twisted.conch.ssh.transport clearly has no attribute RSA. You can confirm