"""Optional-dependency import guards (readline, fcntl, pty set)."""

__all__ = ["readline", "fcntl", "pty", "select", "termios", "tty"]


try:
    import readline
except ImportError:
    readline = None


try:
    import fcntl
except ImportError:
    fcntl = None


try:
    import pty
    import select
    import termios
    import tty
except ImportError:
    pty = select = termios = tty = None