Function spawn

Lib/pty.py:187–211

Create a spawned process.

(argv, master_read=_read, stdin_read=_read)

                i_buf += data

def spawn(argv, master_read=_read, stdin_read=_read):
    """Create a spawned process."""
    if isinstance(argv, str):
        argv = (argv,)
    sys.audit('pty.spawn', argv)

    pid, master_fd = fork()
    if pid == CHILD:
        os.execlp(argv[0], *argv)

    try:
        mode = tcgetattr(STDIN_FILENO)
        setraw(STDIN_FILENO)
        restore = True
    except tty.error:    # This is the same as termios.error
        restore = False

    try:
        _copy(master_fd, master_read, stdin_read)
    finally:
        if restore:
            tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode)

    close(master_fd)
    return waitpid(pid, 0)[1]