Comment #4 on issue 22 by kari.jaakko.niemi: SSHLibrary.Execute Command ---- AttributeError: 'NoneType' object has no attribute 'exec_command'
http://code.google.com/p/robotframework-sshlibrary/issues/detail?id=22
it seems that we are running paramiko lib version 1.7.1 (three years old...) under sshlib&robot and there are several releases after that with quite many bug fixes...
