OpenBB-finance/OpenBB · warning · EmptyDataError

No data was found for the country, {query.country}, and date

Error message

No data was found for the country, {query.country}, and dates, {query.date}

What it means

EmptyDataError from EconDbYieldCurveFetcher.transform_data: raw series data was fetched for the requested countries, but after reshaping and dropping rows without a 'rate' value, results_data is empty for query.date. The curve for that date simply does not exist in the fetched series (weekend, holiday, or pre-publication date).

Source

Thrown at openbb_platform/providers/econdb/openbb_econdb/models/yield_curve.py:262

                    return int(unit)
                return int(unit) / 12

            new_df["maturity_years"] = new_df.maturity.apply(convert_duration)

            new_df = new_df.replace({nan: None})
            records = [
                EconDbYieldCurveData.model_validate(r)
                for r in new_df.to_dict("records")
                if r.get("rate")
            ]
            results_data.extend(records)
            results_metadata[country] = metadata

        for country, country_data in data.items():
            process_country_data(country, country_data)

        if not results_data:
            raise EmptyDataError(
                f"No data was found for the country, {query.country}, and dates, {query.date}"
            )
        return AnnotatedResult(result=results_data, metadata=results_metadata)

View on GitHub (pinned to 3e071fcc2c)

Solutions

Use the most recent weekday for the requested markets.
Omit date and check what the latest available curve date is in the returned metadata.
For a specific past date, confirm it was a trading day in that country's bond market.

Example fix

# before
obb.economy.yield_curve(provider='econdb', date='2026-08-15')  # Saturday

# after
from datetime import date, timedelta
last_bday = date(2026, 8, 14)
while last_bday.weekday() >= 5:
    last_bday -= timedelta(days=1)
obb.economy.yield_curve(provider='econdb', date=last_bday)

Defensive patterns

Strategy: validation

Validate before calling

from datetime import date, timedelta
d = query_date or date.today()
while d.weekday() >= 5:
    d -= timedelta(days=1)
# further guard: country-specific holidays may still yield no curve - retry d-1 on empty

Try / catch

from openbb_core.provider.utils.errors import EmptyDataError
from datetime import timedelta
for _ in range(5):
    try:
        res = obb.economy.yield_curve(provider='econdb', country=c, date=d)
        break
    except EmptyDataError:
        d -= timedelta(days=1)  # walk back over holidays
else:
    raise

Prevention

Walk back from weekends/holidays one day at a time on empty results.
Omit date and read the latest available date from result metadata.
Remember different countries have different holiday calendars.

When it happens

Trigger: economy.yield_curve(provider='econdb', date=D) where D is a non-trading day or a day with no rate observations for all requested countries — extraction succeeds (series exist) but the date slice is empty.

Common situations: Weekend/holiday dates; asking for today's curve before publication; dates earlier than a country's series start.

Related errors

AI-assisted analysis of OpenBB-finance/OpenBB@3e071fcc2c (2026-08-14). Data as JSON: /api/errors/f4a08b1a68f8e530. Report an issue: GitHub.