<<Show us a bit of your code, so we can see why is None there.>>
def command ( self , command ) : """ process requested command through ssh """ print command if not self._connected : return False , "No SSH connection available" try : stdin , stdout , stderr = self._ssh.exec_command( command ) remoteStdOutContent = stdout.readlines() remoteStdErrContent = stderr.readlines() if remoteStdErrContent != [] : return False , '\n'.join(remoteStdErrContent) return True , '\n'.join(remoteStdOutContent) except paramiko.SSHException , e : # provide socket error reason back return False , str(e) -- http://mail.python.org/mailman/listinfo/python-list