Raised when Open-Meteo cannot be reached or returns no usable data.
Distinguishes a transient external-API failure (network outage, rate-limit exhaustion, both the archive and forecast endpoints returning errors) from a real data-validity problem. Subclasses ValueError so existing callers that catch ValueError keep working; consumers that want to react specifically to weather-API failures (e.g. spotforecast2.multitask.base.BaseTask with config.on_weather_failure="skip") catch this class instead.
from spotforecast2_safe.weather.client import WeatherFetchError
try:
raise WeatherFetchError("Archive and forecast endpoints both failed")
except WeatherFetchError as exc:
print(f"Caught WeatherFetchError: {exc}")
# WeatherFetchError is a subclass of ValueError
assert issubclass(WeatherFetchError, ValueError)
print("issubclass(WeatherFetchError, ValueError):", True)Caught WeatherFetchError: Archive and forecast endpoints both failed
issubclass(WeatherFetchError, ValueError): True