Class Console

Lib/_pyrepl/console.py:49–153

@dataclass
class Console(ABC):
    posxy: tuple[int, int]
    screen: list[str] = field(default_factory=list)
    height: int = 25
    width: int = 80

    def __init__(
        self,
        f_in: IO[bytes] | int = 0,
        f_out: IO[bytes] | int = 1,
        term: str = "",
        encoding: str = "",
    ):
        self.encoding = encoding or sys.getdefaultencoding()

        if isinstance(f_in, int):
            self.input_fd = f_in
        else:
            self.input_fd = f_in.fileno()

        if isinstance(f_out, int):
            self.output_fd = f_out
        else:
            self.output_fd = f_out.fileno()

    @abstractmethod
    def refresh(self, screen: list[str], xy: tuple[int, int]) -> None: ...

    @abstractmethod
    def prepare(self) -> None: ...

    @abstractmethod
    def restore(self) -> None: ...

    @abstractmethod
    def move_cursor(self, x: int, y: int) -> None: ...

    @abstractmethod
    def set_cursor_vis(self, visible: bool) -> None: ...

    @abstractmethod
    def getheightwidth(self) -> tuple[int, int]:
        """Return (height, width) where height and width are the height
        and width of the terminal window in characters."""
        ...

    @abstractmethod
    def get_event(self, block: bool = True) -> Event | None:
        """Return an Event instance.  Returns None if |block| is false
        and there is no event pending, otherwise waits for the
        completion of an event."""
        ...

    @abstractmethod
    def push_char(self, char: int | bytes) -> None:
        """
        Push a character to the console event queue.
        """