OpenBB-finance/OpenBB · warning · OpenBBError

No data to plot.

Error message

No data to plot.

What it means

Emptiness check in the port-info map view: the chart cannot be built from an empty input list, so it raises before constructing the DataFrame (which would additionally be filtered by vessel_count_total > 0). It signals the caller passed zero rows, usually an upstream fetch that matched nothing.

Source

Thrown at openbb_platform/providers/imf/openbb_imf/views/port_info.py:29

    from pandas import DataFrame

    try:
        import plotly.express as px
        from openbb_charting.core.openbb_figure import OpenBBFigure
    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, ImfPortInfoData) for item in data)
    ):
        raise OpenBBError("Invalid data format. Expected a list of ImfPortInfoData.")
    if len(data) == 0:
        raise OpenBBError("No data to plot.")

    df = DataFrame([item.model_dump() for item in data]).query("vessel_count_total > 0")

    min_size, max_size = 4, 10

    if "country" in df.columns and df["country"].nunique() == 1:
        share_import = df["share_country_maritime_import"].fillna(0)
        share_export = df["share_country_maritime_export"].fillna(0)
        df["import_export_share"] = share_import + share_export
        share_values = df["import_export_share"]

        if share_values.nunique() > 1:
            df["marker_size"] = (
                (share_values - share_values.min())
                / (share_values.max() - share_values.min() + 1e-9)
            ) * (max_size - min_size) + min_size
        else:
            df["marker_size"] = (min_size + max_size) / 2

View on GitHub (pinned to 3e071fcc2c)

Solutions

1. Verify the fetch call's filters and retry the data fetch before plotting.
2. Handle EmptyDataError from the data endpoint instead of forwarding an empty list to the view.
3. If all rows have vessel_count_total == 0, expect an empty figure - filter or message accordingly in your UI.

Example fix

# before
results = obb.economy.imf.port_info(country='XX', chart=True)
# after
res = obb.economy.imf.port_info(country='XX')
if not res.results:
    raise SystemExit(f'No ports found for {res.provider} - adjust filters')
chart = res.charting.to_chart()

if not data:
    print('No port data for the given filters')
else:
    plot_port_info_map(data)

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

from openbb_core.app.model.abstract.error import OpenBBError
try:
    plot_port_info_map(data)
except OpenBBError as e:
    if str(e) == 'No data to plot.':
        show_empty_state()
    else:
        raise

When it happens

Trigger: Calling plot_port_info_map([]) after a port-info fetch returned no records - e.g. a country filter with no ports, or a period with no vessel observations. Note that even non-empty input whose rows all have vessel_count_total == 0 yields an empty DataFrame after .query(...), producing an empty map rather than this error.

Common situations: Filters (country, date) excluding all ports; API downtime upstream causing empty results that a wrapper converted to []; pagination bugs returning zero pages.

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/0b3fbf2db5f8624b. Report an issue: GitHub.