building.py

from mcpi.minecraft import Minecraft
import mcpi.block as block

mc = Minecraft.create()
pos = mc.player.getTilePos()

width = 6
depth = 5
height = 4

def isWall(x, y, z):
    return (x == 0 or x == width - 1 or
            z == 0 or z == depth - 1)

def isRoof(x, y, z):
    return y == height - 1

for x in range(width):
    for y in range(height):
        for z in range(depth):
            if isRoof(x, y, z):
                mc.setBlock(pos.x + x, pos.y + y, pos.z + z, block.GLASS)
            elif isWall(x, y, z):
                mc.setBlock(pos.x + x, pos.y + y, pos.z + z, block.COBBLESTONE)
            else:
                mc.setBlock(pos.x + x, pos.y + y, pos.z + z, block.AIR)