Paul, I am attempting to use Twisted, for a simple SSH connection... As a example, I am using "The Transport" example from the how to's... from twisted.conch import error from twisted.conch.ssh import transport from twisted.internet import defer class ClientTransport(transport.SSHClientTransport): def verifyHostKey(self, pubKey, fingerprint): if fingerprint != 'b1:94:6a:c9:24:92:d2:34:7c:62:35:b4:d2:61:11:84': return defer.fail(error.ConchError('bad key')) else: return defer.succeed(1) def connectionSecure(self): self.requestService(ClientUserAuth('user', ClientConnection())) But.... It appears that something was not installed with the installer? C:\develope\versions\test_code>ssh_test.py Traceback (most recent call last): File "C:\develope\versions\test_code\ssh_test.py", line 2, in ? from twisted.conch.ssh import transport File "C:\develope\Python23\Lib\site-packages\twisted\conch\ssh\transport.py", line 37, in ? from Crypto import Util ImportError: No module named Crypto I am assuming that there is a prequiste package that needs to be installed, presumably one of the multitude of Cryptography packages that I find on the Vaults of Parnassus.... Is this accurate? And if so, what package? On the assumption it is PyCrypto.... I tried to install PyCrypto... (The sad thing is that I'm running through all these hoops simply because I need to be able to make a SSH connection, and be able to read and write to the stream... (ala Telnetlib)) when I: setup.py install I receive: C:\develope\pycrypto-1.9a6>setup.py install running install running build running build_py running build_ext error: Python was built with version 6 of Visual Studio, and extensions need to be built with the same version of the compiler, but it isn't installed. Now I am running: C:\develope\pycrypto-1.9a6>python Python 2.3.2 (#49, Oct 2 2003, 20:02:00) [MSC v.1200 32 bit (Intel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> I also have win32-157 installed.... Is there some way around this compile issue, does anyone know of a precompiled Windows binary for the PyCrypto kit?? - Benjamin