exceptions.LeakageError

exceptions.LeakageError()

Exception raised when forbidden columns are detected in model inputs.

Raised by spotforecast2_safe.multitask.guards.assert_no_leakage when a forbidden column name appears in the training frame, the selected exogenous feature set, or the fitted model’s feature list.

Inherits from RuntimeError so callers that catch RuntimeError keep working; the dedicated class lets safety-critical callers distinguish data-governance violations from generic runtime errors.

Examples

from spotforecast2_safe.exceptions import LeakageError

try:
    raise LeakageError(
        "Forbidden column 'Forecasted Load' found in training frame"
    )
except LeakageError as e:
    print(type(e).__name__, str(e))

assert issubclass(LeakageError, RuntimeError)

LeakageError Forbidden column 'Forecasted Load' found in training frame