def setBiomeAt(self, x, z, biomeID):
        '''
        Sets the biome data for the Y column at the specified X and Z coordinates
        
        :param x: The X block coordinate
        :type x: int
        :param z: The Z block coordinate
        :type z: int
        :param biomeID: The wanted biome ID 
        :type biomeID: int
        '''
        biomes = self.getChunk(int(x/16), int(z/16)).root_tag["Level"]["Biomes"].value
        xChunk = int(x/16) * 16
        zChunk = int(z/16) * 16
        biomes[(z - zChunk) * 16 + (x - xChunk)] = biomeID

        Sets the biome data for the Y column at the specified X and Z coordinates
        
        :param x: The X block coordinate
        :type x: int
        :param z: The Z block coordinate
        :type z: int
        :param biomeID: The wanted biome ID 
        :type biomeID: int
        
pymclevel/infiniteworld.py