class BaseError(Exception): """Base exception with a hint whether to list traceback information or not. Attributes: msg -- explanation of the error list_traceback -- hint to an application level exception handler whether to list traceback information or not. """ def __init__(self, msg, list_traceback=True): self.msg = msg self.list_traceback = list_traceback def __str__(self): return self.msg class InvalidInputParameterError(BaseError): """Exception raised for invalid input parameters.""" def __init__(self, msg, list_traceback=False): BaseError.__init__(self, msg, list_traceback) class InvalidCommandLineArgumentError(BaseError): """Exception raised for invalid command line arguments.""" def __init__(self, msg, list_traceback=False): BaseError.__init__(self, msg, list_traceback)