Class BaseRepl

bpython/curtsiesfrontend/repl.py:308–2188

Python Repl Reacts to events like - terminal dimensions and change events - keystrokes Behavior altered by - number of scroll downs that were necessary to render array after each display - initial cursor position outputs: - 2D array to be rendered Ba

class BaseRepl(Repl):
    """Python Repl

    Reacts to events like
     - terminal dimensions and change events
     - keystrokes
    Behavior altered by
     - number of scroll downs that were necessary to render array after each
       display
     - initial cursor position
    outputs:
     - 2D array to be rendered

    BaseRepl is mostly view-independent state of Repl - but self.width and
    self.height are important for figuring out how to wrap lines for example.
    Usually self.width and self.height should be set by receiving a window
    resize event, not manually set to anything - as long as the first event
    received is a window resize event, this works fine.

    Subclasses are responsible for implementing several methods.
    """

    def __init__(
        self,
        config: Config,
        window: CursorAwareWindow,
        locals_: dict[str, Any] | None = None,
        banner: str | None = None,
        interp: Interp | None = None,
        orig_tcattrs: list[Any] | None = None,
    ):
        """
        locals_ is a mapping of locals to pass into the interpreter
        config is a bpython config.Struct with config attributes
        banner is a string to display briefly in the status bar
        interp is an interpreter instance to use
        original terminal state, useful for shelling out with normal terminal
        """

        logger.debug("starting init")
        self.window = window

        # If creating a new interpreter on undo would be unsafe because initial
        # state was passed in
        self.weak_rewind = bool(locals_ or interp)

        if interp is None:
            interp = Interp(locals=locals_)
            interp.write = self.send_to_stdouterr  # type: ignore
        if config.cli_suggestion_width <= 0 or config.cli_suggestion_width > 1:
            config.cli_suggestion_width = 1

        self.reevaluating = False
        self.fake_refresh_requested = False

        self.status_bar = StatusBar(
            config,
            "",