from mcpi.minecraft import Minecraft
mc = Minecraft.create()
import time
import  random

def brokenBlock():
    brokenBlocks = [48, 67, 4, 4, 4, 4]
    block = random.choice(brokenBlocks)
    return block

pos = mc.player.getTilePos()
x, y, z = pos.x, pos. y, pos.z
brokenWall = []
height, width = 5, 10

for row in range(height):
    brokenWall.append([])
    for column in range(width):
        block = brokenBlock()
        brokenWall[row].append(block)

for row in brokenWall:
    for block in row:
        mc.setBlock(x, y, z, block)
        x += 1
        time.sleep(0.1)
    y += 1
    x = pos.x