import datetime from typing import Literal class DateNotFoundError(Exception): """Exception to be raised when date is not found""" def __init__(self, message, date): message = f"{message}: {date}" super().__init__(message) class DateOutOfRangeError(Exception): """Exception to be raised when provided date is outside the range of dates in the time series""" def __init__(self, date: datetime.datetime, type: Literal['min', 'max']) -> None: if type == 'min': message = f"Provided date {date} is before the first date in the TimeSeries" if type == 'max': message = f"Provided date {date} is after the last date in the TimeSeries" super().__init__(message)