Paramiko interactive subprocess

ssh-server.py

    # In the paramiko server... this is super ugly.
    from subprocess import Popen, PIPE
    import select
    
    def _read_chan(chan, stdin):
        x = chan.recv(1)
        if ord(x) == 13:
            chan.send("\r\n")
            stdin.write("\n")
        else:
            chan.send(x)
            stdin.write(x)
        stdin.flush()

    def _write_chan(chan, out):
        x = out.read(1)
        chan.send(x.replace("\n", "\r\n"))

    s = Popen(["python", "-i"], stdout=PIPE, stdin=PIPE, stderr=PIPE)
    while True:
        r, w, e = select.select([chan, s.stdout, s.stderr], [], [])
        if chan in r:
            _read_chan(chan, s.stdin)
        if s.stdout in r:
            _write_chan(chan, s.stdout)
        if s.stderr in r:
            _write_chan(chan, s.stderr)