""" Exceptions used by Home Assistant """


class HomeAssistantError(Exception):
    """ General Home Assistant exception occured. """
    pass


class InvalidEntityFormatError(HomeAssistantError):
    """ When an invalid formatted entity is encountered. """
    pass


class NoEntitySpecifiedError(HomeAssistantError):
    """ When no entity is specified. """
    pass


class TemplateError(HomeAssistantError):
    """ Error during template rendering. """
    def __init__(self, exception):
        super().__init__('{}: {}'.format(exception.__class__.__name__,
                                         exception))