def storeByteArray ( self , context , page , len , data , returnError ) : returnError . contents . value = self . IllegalStateError raise NotImplementedError ( "You must override this method." )
python abstract method raise notimplemented
please override
def storeByteArray(self, context, page, len, data, returnError):
        """please override"""
        returnError.contents.value = self.IllegalStateError
        raise NotImplementedError("You must override this method.")