def __init__(self, message, stacktrace=None):
        """
        Instantiate a new H2OServerError exception.

        :param message: error message describing the exception.
        :param stacktrace: (optional, list(str)) server-side stacktrace, if available. This will be printed out by
            our custom except hook (see debugging.py).
        """
        super(H2OServerError, self).__init__(message)
        self.stacktrace = stacktrace
def __init__ ( self , message , stacktrace = None ) : super ( H2OServerError , self ) . __init__ ( message ) self . stacktrace = stacktrace
Instantiate a new H2OServerError exception.

        :param message: error message describing the exception.
        :param stacktrace: (optional, list(str)) server-side stacktrace, if available. This will be printed out by
            our custom except hook (see debugging.py).