>>> import paramiko
>>> print paramiko.SSHClient.__doc__
    A high-level representation of a session with an SSH server.  This class
    wraps L{Transport}, L{Channel}, and L{SFTPClient} to take care of most
    aspects of authenticating and opening channels.  A typical use case is::
        client = SSHClient()
        client.load_system_host_keys()
        client.connect('ssh.example.com')
        stdin, stdout, stderr = client.exec_command('ls -l')
    You may pass in explicit overrides for authentication and server host key
    checking.  The default mechanism is to try to use local key files or an
    SSH agent (if one is running).
    @since: 1.6
    
>>> 

>>> print paramiko.SSHClient.exec_command.__doc__
        Execute a command on the SSH server.  A new L{Channel} is opened and
        the requested command is executed.  The command's input and output
        streams are returned as python C{file}-like objects representing
        stdin, stdout, and stderr.
        @param command: the command to execute
        @type command: str
        @param bufsize: interpreted the same way as by the built-in C{file()} function in python
        @type bufsize: int
        @return: the stdin, stdout, and stderr of the executing command
        @rtype: tuple(L{ChannelFile}, L{ChannelFile}, L{ChannelFile})
        @raise SSHException: if the server fails to execute the command
        
>>>

>>> stdin, stdout, stderr = ssh.exec_command("uptime")
>>> data = stdout.read() + stderr.read()
>>> data
' 14:19:35 up 3 days,  9:49,  0 users,  load average: 0.17, 0.29, 0.27\n'
>>> type(data)
<type 'str'>

>>> import sys
>>> sys.stdin
<open file '<stdin>', mode 'r' at 0xb7735020>
>>> help(sys.stdin)
>>>