OpenBB-finance/OpenBB · error · ValueError

OBBject was initialized with no function route.

Error message

OBBject was initialized with no function route.

What it means

Raised by Charting._get_chart_function when the OBBject being charted has route None, i.e. it was constructed directly (OBBject(results=...)) rather than returned by a router command. Charting resolves the plotting function from the provider route stored on the OBBject; without a route there is nothing to look up.

Source

Thrown at openbb_platform/obbject_extensions/charting/openbb_charting/charting.py:118

        """Return a list of the available functions."""
        functions: list[str] = []
        for view in cls._extension_views:
            functions.extend(get_charting_functions_list(view))

        return functions

    def _get_functions(self) -> dict[str, Callable]:
        """Return a dict with the available functions."""
        functions: dict[str, Callable] = {}
        for view in self._extension_views:
            functions.update(get_charting_functions(view))

        return functions

    def _get_chart_function(self, route: str) -> Callable:
        """Given a route, it returns the chart function. The module must contain the given route."""
        if route is None:
            raise ValueError("OBBject was initialized with no function route.")
        adjusted_route = route.replace("/", "_")[1:]
        if adjusted_route not in self._functions:
            raise ValueError(
                f"Could not find the route `{adjusted_route}` in the charting functions."
            )
        return self._functions[adjusted_route]

    def get_params(self) -> Union["ChartParams", None]:
        """Return the ChartQueryParams class for the function the OBBject was created from.

        Without assigning to a variable, it will print the docstring to the console.
        If the class is not defined, the help for the function will be returned.
        """
        # pylint: disable=import-outside-toplevel
        from openbb_charting.query_params import ChartParams

        if self._obbject._route is None:  # pylint: disable=protected-access
            raise ValueError("OBBject was initialized with no function route.")

View on GitHub (pinned to 3e071fcc2c)

Solutions

1. Chart data through a real API call so the OBBject carries its route: res = obb.equity.price.historical(...); res.charting()
2. If wrapping custom data, set the route metadata explicitly or use Charting.to_chart(data=...) instead of route-based lookup
3. Avoid reconstructing OBBject from dicts without preserving extra['metadata'].route

Example fix

# before
obj = OBBject(results=df)
obj.charting.to_chart()

# after
obj = OBBject(results=df)
obj.charting.to_chart(data=df)

route = getattr(obj.extra.get('metadata', {}), 'route', None) or getattr(obj, '_route', None)
assert route, 'OBBject has no route; use to_chart(data=...) instead'

def has_route(obj) -> bool:
    return getattr(obj, '_route', None) is not None

try:
    obj.charting.get_params()
except ValueError as e:
    if 'no function route' in str(e):
        obj.charting.to_chart(data=obj.to_df())

When it happens

Trigger: Manually instantiating OBBject and calling .charting.to_chart() or .get_params(); serializing/de-serializing an OBBject and losing the route metadata; calling charting internals with a route argument of None.

Common situations: Building custom OBBjects to wrap user data; deepcopy or persistence round-trips that drop the private _route attribute; calling internal _get_chart_function directly in tests.

Related errors

• Error: No data to plot.
• Expiration field not found in the data.
• Price field not found in the data.
• Error: Rate column not found in the data.
• Error: Date column not found in the data.

AI-assisted analysis of OpenBB-finance/OpenBB@3e071fcc2c (2026-08-14). Data as JSON: /api/errors/d08f363ac45914a8. Report an issue: GitHub.