class InvalidPluginException(Exception):
    """Exception raised when the provided plugin configuration is not valid.

    Attributes:
        plugin_name -- name of the plugin that caused this error
        message -- explanation of the error
    """
    def __init__(self, plugin_name, message):
        self._plugin_name = plugin_name
        self._message = message

    @property
    def message(self):
        return 'The {} plugin is invalid. {}'.format(self._plugin_name, self._message)