Method __init__

IPython/core/tbtools.py:388–433

(
        self,
        color_scheme: Any = _sentinel,
        call_pdb: bool = False,
        ostream: Any = None,
        *,
        debugger_cls: type | None = None,
        theme_name: str = "nocolor",
    )

    pdb: Any

    def __init__(
        self,
        color_scheme: Any = _sentinel,
        call_pdb: bool = False,
        ostream: Any = None,
        *,
        debugger_cls: type | None = None,
        theme_name: str = "nocolor",
    ):
        if color_scheme is not _sentinel:
            assert isinstance(color_scheme, str), color_scheme
            warnings.warn(
                "color_scheme is deprecated since IPython 9.0, use theme_name instead, all lowercase",
                DeprecationWarning,
                stacklevel=2,
            )
            theme_name = color_scheme
        if theme_name in ["Linux", "LightBG", "Neutral", "NoColor"]:
            warnings.warn(
                f"Theme names and color schemes are lowercase in IPython 9.0 use {theme_name.lower()} instead",
                DeprecationWarning,
                stacklevel=2,
            )
            theme_name = theme_name.lower()
        # Whether to call the interactive pdb debugger after printing
        # tracebacks or not
        super().__init__()
        self.call_pdb = call_pdb

        # Output stream to write to.  Note that we store the original value in
        # a private attribute and then make the public ostream a property, so
        # that we can delay accessing sys.stdout until runtime.  The way
        # things are written now, the sys.stdout object is dynamically managed
        # so a reference to it should NEVER be stored statically.  This
        # property approach confines this detail to a single location, and all
        # subclasses can simply access self.ostream for writing.
        self._ostream = ostream

        # Create color table
        self.set_theme_name(theme_name)
        self.debugger_cls = debugger_cls or debugger.Pdb

        if call_pdb:
            self.pdb = self.debugger_cls()
        else:
            self.pdb = None

    def _get_ostream(self) -> Any:
        """Output stream that exceptions are written to.