common.py 文件源码

def popen_tty(cmd):
    """Open a process with stdin connected to a pseudo-tty.  Returns a

    :param cmd: command to run
    :type cmd: str
    :returns: (Popen, master) tuple, where master is the master side
       of the of the tty-pair.  It is the responsibility of the caller
       to close the master fd, and to perform any cleanup (including
       waiting for completion) of the Popen object.
    :rtype: (Popen, int)

    """
    master, slave = pty.openpty()
    proc = subprocess.Popen(cmd,
                            stdin=slave,
                            stdout=subprocess.PIPE,
                            stderr=subprocess.PIPE,
                            preexec_fn=os.setsid,
                            close_fds=True,
                            shell=True)
    os.close(slave)

    return (proc, master)