Method __init__

mypy/errors.py:497–512

(
        self,
        options: Options,
        *,
        read_source: Callable[[str], list[str] | None] | None = None,
        hide_error_codes: bool | None = None,
        error_formatter: ErrorFormatter | None = None,
    )

    _watchers: list[ErrorWatcher]

    def __init__(
        self,
        options: Options,
        *,
        read_source: Callable[[str], list[str] | None] | None = None,
        hide_error_codes: bool | None = None,
        error_formatter: ErrorFormatter | None = None,
    ) -> None:
        self.options = options
        self.hide_error_codes = (
            hide_error_codes if hide_error_codes is not None else options.hide_error_codes
        )
        # We use fscache to read source code when showing snippets.
        self.read_source = read_source
        self.error_formatter = error_formatter
        self.initialize()

    def initialize(self) -> None:
        self.error_info_map = {}