OpenBB-finance/OpenBB · warning · OpenBBError

No data to plot.

Error message

No data to plot.

What it means

Simple emptiness check in the maritime chokepoint chart view: before building the DataFrame, it requires a non-empty input list. Empty input means there is nothing to map or tabulate, and plotting would produce a broken figure, so it fails fast. Note data=None would raise TypeError at len() rather than this error.

Source

Thrown at openbb_platform/providers/imf/openbb_imf/views/maritime_chokepoint_info.py:34

        from openbb_charting.core.openbb_figure import OpenBBFigure
        from plotly import graph_objects as go
        from plotly.subplots import make_subplots
    except Exception as e:
        raise OpenBBError(
            "Could not import Charting modules. Install with `pip install openbb-charting`."
            + f" -> {e}"
        ) from e

    if (
        data is not None
        and not isinstance(data, list)
        or not all(isinstance(item, ImfMaritimeChokePointInfoData) for item in data)
    ):
        raise OpenBBError(
            "Invalid data format. Expected a list of ImfMaritimeChokePointInfoData."
        )
    if len(data) == 0:
        raise OpenBBError("No data to plot.")

    df = DataFrame([item.model_dump() for item in data])
    if theme == "dark":
        geo_bgcolor = "rgba(0,0,0,0)"
        landcolor = "#3a5d3a"
        countrycolor = "#cccccc"
        oceancolor = "#223355"
        coastlinecolor = "#cccccc"
        lakecolor = "#0d47a1"
        rivercolor = "#0d47a1"
        table_header_fill = "#222e3c"
        table_header_font = "#fff"
        table_cell_fill = ["#232323", "#181818"] * (len(df) // 2 + 1)
        font_color = "#fff"
        annotation_color = "#aaa"
        plot_bgcolor = "rgba(21,21,21,1)"
        paper_bgcolor = "rgba(21,21,21,1)"
    else:

View on GitHub (pinned to 3e071fcc2c)

Solutions

1. Check the fetch result is non-empty before invoking the chart view.
2. Broaden or correct query filters (dates, chokepoint selection) so the fetch returns rows.
3. Handle upstream EmptyDataError explicitly rather than coercing to an empty list.

Example fix

# before
result = obb.economy.imf.maritime_chokepoint(...).results
plot_maritime_chokepoint_info(result)  # may raise 'No data to plot.'
# after
if not result:
    print('No chokepoint data for the given filters')
else:
    plot_maritime_chokepoint_info(result)

if not data:
    raise SystemExit('No maritime chokepoint data for the given filters')
plot_maritime_chokepoint_info(data)

def has_rows(data: list | None) -> bool:
    return bool(data)

from openbb_core.app.model.abstract.error import OpenBBError
try:
    plot_maritime_chokepoint_info(data)
except OpenBBError as e:
    if str(e) == 'No data to plot.':
        show_empty_state()  # expected when filters match nothing
    else:
        raise

When it happens

Trigger: Calling plot_maritime_chokepoint_info([]) - typically because the upstream fetch returned no rows (e.g. a date filter with no matching chokepoint observations) and the caller forwarded the empty result straight to the chart view.

Common situations: Date ranges outside available data; filters (country/chokepoint) matching nothing; upstream EmptyDataError being swallowed and replaced with an empty list before plotting.

Related errors

• No data to plot.
• Invalid data format. Expected a list of ImfMaritimeChokePoin
• Invalid data format. Expected a list of ImfPortInfoData.
• OBBject Extension Error -> An OBBject extension that acts
• Error: No data to plot.

AI-assisted analysis of OpenBB-finance/OpenBB@3e071fcc2c (2026-08-14). Data as JSON: /api/errors/5f84f18cd88958b7. Report an issue: GitHub.