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Pseudo terminal utilities.
close(fd) Close a file descriptor.
fork() fork() -> (pid, master_fd) Fork and make the child a session leader with a controlling terminal.
master_open() master_open() -> (master_fd, slave_name) Open a pty master and return the fd, and the filename of the slave end. Deprecated, use openpty() instead.
openpty() openpty() -> (master_fd, slave_fd) Open a pty master/slave pair, using os.openpty() if possible.
select(rlist, wlist, xlist, timeout=None, /) Wait until one or more file descriptors are ready for some kind of I/O. The first three arguments are iterables of file descriptors to be waited for: rlist -- wait until ready for reading wlist -- wait until ready for writing xlist -- wait for an "exceptional condition" If only one kind of condition is required, pass [] for the other lists. A file descriptor is either a socket or file object, or a small integer gotten from a fileno() method call on one of those. The optional 4th argument specifies a timeout in seconds; it may be a floating point number to specify fractions of seconds. If it is absent or None, the call will never time out. The return value is a tuple of three lists corresponding to the first three arguments; each contains the subset of the corresponding file descriptors that are ready. *** IMPORTANT NOTICE *** On Windows, only sockets are supported; on Unix, all file descriptors can be used.
setraw(fd, when=2) Put terminal into a raw mode.
slave_open(tty_name) slave_open(tty_name) -> slave_fd Open the pty slave and acquire the controlling terminal, returning opened filedescriptor. Deprecated, use openpty() instead.
spawn(argv, master_read=<function _read at 0x7f75e0ba97e0>, stdin_read=<function _read at 0x7f75e0ba97e0>) Create a spawned process.
tcgetattr(fd, /) Get the tty attributes for file descriptor fd. Returns a list [iflag, oflag, cflag, lflag, ispeed, ospeed, cc] where cc is a list of the tty special characters (each a string of length 1, except the items with indices VMIN and VTIME, which are integers when these fields are defined). The interpretation of the flags and the speeds as well as the indexing in the cc array must be done using the symbolic constants defined in this module.
tcsetattr(fd, when, attributes, /) Set the tty attributes for file descriptor fd. The attributes to be set are taken from the attributes argument, which is a list like the one returned by tcgetattr(). The when argument determines when the attributes are changed: termios.TCSANOW to change immediately, termios.TCSADRAIN to change after transmitting all queued output, or termios.TCSAFLUSH to change after transmitting all queued output and discarding all queued input.
waitpid(pid, options, /) Wait for completion of a given child process. Returns a tuple of information regarding the child process: (pid, status) The options argument is ignored on Windows.
CHILD = 0
STDERR_FILENO = 2
STDIN_FILENO = 0
STDOUT_FILENO = 1